If code hayward heater - Do you know how to make a solar water heater using a can? Find out how to make a solar water heater using a can in this article from HowStuffWorks. Advertisement You can harness th...

 
Exiting Bypass Operation. To exit bypass operation and resolve the bO Code problem, follow these steps: First, set the heater to standby mode. Next, press and hold the Down key and MODE key for three seconds. Finally, verify that the display no longer shows the “bO” indication.. 8008046976

I have a Pentair Master Temp 300 Pool Heater that is 6 years old. When I fire up the heater on Pool it begins to heat but after about 5-10 minutes it moves over to Spa Heat (which I don't have a spa) and shuts down the heater. No code is present. I have replaced the Stack sensor thinking that it was the problem. Start heater again. Does low side pressure drop below 30 psi for R-22 unit or 80 psi on a R-410A unit? Figure C. Replace LP switch. See Note 2 below NO Abandon existing switch on Hayward R-22 units. Replacement switch is a screw on switch. Use a swivel tee on the low side access port. On Summit and R-410A (4T) Hayward units the existing switch ... If you're looking for help fixing your Hayward Pool Heaters, look no further! Our comprehensive Hayward Pool Heaters error code guide will explain common iss...The vent pressure switch in your Hayward pool heater ensures and determines the incoming water flow proper amount. Thus if the vent pressure switch is faulty, you will see the Hayward h400 pool heater lo code on the heater’s display. The main concerning causes of it are:Hayward 250 pool heater throwing AO code. Replaced control board, blower motor, pressure switch, igniter. Still not turning on. ...POOL AND SPA/HOT TUB HEATERS H150FD, H200FD, H250FD, H300FD, H350FD, H400FD & H500FD MODELS. OWNER'S MANUAL. ... in conformance with applicable local and national codes and regulations. Before work-ing on this unit, turn off power supply to the heater. ... USE ONLY HAYWARD GENUINE REPLACEMENT PARTS 4. NOTES TO THE ELECTRICIAN: Use a solid ... Remove front & rear panels Remove wires from limit switches. Step 13. Remove the 4 screws from the bottom of the front and rear panels and pull up and out to remove each one. Step 14. Use needle nose pliers to remove the 2 red wires from each of the high limit switches. Remove wires from water pressure switch. Posted February 3, 2011. Help - I have a Hayward H400IDL pool heater. It comes on properly, but then every couple of minutes the burners cycle off (the fan continues to operate). After a couple more minutes the burners cycle back on. This cycling continues for as long as the heater is turned on. The end result is that it is taking 2 to 3 times ...The hayward pool heater h5 code can be caused by various issues, including low water flow, high limit switches, or a faulty pressure switch. To identify the causes, check the water flow, inspect the switches, and consult the heater's manual for troubleshooting steps.Add to Cart. Hayward - Indoor Vent Adapter Kit H400 Pos Press Horizontal UHSLN. SKU: 220970. Details: INDOOR VENT ADAPTER KIT H400 POS PRESS HORIZONTAL UHSLN. Availability: In Stock. $649.99. Add to Cart. Keep your pool heater running like new with Hayward H-Series H250FD & H400FD ASME Commercial Heater Parts.Hayward pool heater has 13 distinctive error codes to notify several flaws and malfunctions going through the unit. The main error includes bD, EE, CE, IO, Sb, …View online or download Hayward H400IDL Installation, Operation And Service Instructions, Installation, Operation & Service Procedures ... Hayward Manuals; Swimming Pool Heater; H400IDL; Hayward H400IDL Manuals. Manuals and User Guides for Hayward H400IDL. We have 2 Hayward H400IDL manuals available for free PDF …Clean the Filter. Your pool heater needs enough water pressure to run properly, usually at least 40 GPM (gallons per minute). If your heater is not getting a steady stream of water, it could be due to a clogged filter or dirty pump basket. Turn off your heater and pump before cleaning.Check the Gas Valve. Start by ensuring that the gas valve is open and allowing the flow of gas to the pool heater. If the gas valve is closed or partially closed, the heater won't receive the necessary fuel to ignite. Make sure the valve is fully open and functioning correctly.Available in 150,000, 200,000, 250, 000, and 400,000 BTUs, the Universal H-Series heater can raise the temperature of an 800-gallon pool 30 degrees in less than an hour—you'll feel the benefits the moment you step into the water. The Hayward Universal H-Series Low NOx can be added to inground pool kits sold by Pool Warehouse!Hayward Universal H-Series Low NOx Induced Draft Pool & Spa Heater | 400,000 BTU | Natural Gas | W3H400FDN. The Hayward Universal H-Series gas heater is the "universal" energy efficient remedy for any new or existing pool or spa. An industry leading hydraulic design reduces circulation pump run time to provide energy savings of up to 18% when ...Hayward® is America's first choice for residential and commercial swimming pool and spa equipment. We manufacture the Totally Hayward™ System and sell our products direct to wholesalers. ... Pump, Filter, Heater, Lights, & Whole Goods Tech Support. 1 (908) 355-7995 (U.S.) Contact us by letter: Hayward Holdings, Inc. 1415 Vantage Park Drive ...The Hayward HeatPro Heat Pump is listed by ETL as complying with the latest edition of the "UL Standard for Safety for Heating and Cooling Equipment", UL1995 and CSA C22.2 No. 236. All Hayward HeatPro Heat Pumps must be installed in accordance with all applicable National and Local codes. In the absenceHayward 250 pool heater throwing AO code. Replaced control board, blower motor, pressure switch, igniter. Still not - Answered by a verified Pool and Spa Expertccabrol I'm new here Posts: 1 Joined: Fri 08 Nov, 2013 18:30 My Pool: Pebbletec Location: St. Petersburg, FLAug 22, 2022 ... A super easy fix for a stuck button on a Hayward pool heater. Pool Heater Replacement Control Panel Keypad Membrane Switch Compatible with ...How to Repair The Hayward H Series Heater by replacing the Heat Exchanger and Control Panel DIY. The Hayward H series pool heaters have a similar repair orde...Key Takeaways. The P5 code on Hayward pool heaters indicates a problem with the pressure switch. Common causes of the P5 code include clogged filters, improper water flow, and electrical issues. Troubleshooting steps for the P5 code involve checking water pressure, inspecting the heat exchanger, and verifying the gas supply.Verified. Randy Huckstadt and 87 other Pool and Spa Specialists are ready to help you. 1,205. I have a code 56 on my Hayward Pool Heater. Spa wwon;t heat. I have a code 56 on my Hayward Pool Heater. Spa wwon;t heat over 99 degrees. … read more. Randy Huckstadt.The Hayward H-Series' Finn Plate cupro-nickel heat exchanger has special V-groove design for faster heating and longer life. Hayward Universal H-Series, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater delivers energy efficient heating to your pool's water that you can trust. Hayward Universal H-Series - Versatility & PowerDo you want to learn how to fix a pool heater with a p5 error? Watch this video to see how a pressure valve can solve the problem. You will also find tips and tricks for pool maintenance and ...Dec 7, 2022 ... Hayward Pool Heater Sb Error Code 56 EASY FIX ... Hayward H400 Pool Heater IF Error Code ignition Failure (IDXLFLS1930) Flame Sensor Replacement.The cost of running a pool heater is cheap for solar heaters, around $100-$200/mo for heaters, and in the $200-$400/mo range for gas heaters. Your actual heating costs will vary from month to month, depending on the outside temperature and weather.I have Hayward H150FDN Universal H-Series, Low NOx, 150,000 BTU, Natural Gas, Pool and Spa Heater and I am getting a LO code with is a flow problem. I have my intermatic timer set for 755am to turn on and give my equipment power, then at 8am the Hayward pump turn on. Can the heater be on... Enter a postal code to find the nearest Hayward authorized pool professional. ... Heaters (not including Heat Pumps) Heat Pumps. Lighting. Pumps. Variable Speed Pumps ... Nov 16, 2023 · The SF code on your Hayward heater’s display stands for “Stack Flue Sensor Failure.”. This code indicates that there’s a problem with the sensor responsible for monitoring the flue gases in your heater. Flue gases are the byproducts of combustion, and monitoring them is crucial for safety reasons. Common Causes of SF Code. IF: Refers to ignition failure, which occurs when the heater fails to light, often due to gas supply problems or faulty ignition components. HS: Signals high-limit switch …View online or download Hayward H250FDN Owner's Manual, Troubleshooting Manual ... Brands; Hayward Manuals; Heater; H250FDN; Hayward H250FDN Manuals. Manuals and User Guides for Hayward H250FDN. We have 6 Hayward H250FDN manuals available for free PDF download: Troubleshooting ... Diagnostic Codes and Part Numbers. 19. …Preventing Future LO Codes. To avoid encountering the Hayward Heater LO Code in the future, consider implementing these preventive measures: Regular Maintenance: Stay on top of regular maintenance tasks, such as cleaning or replacing your pool filter and inspecting your plumbing system for blockages.May 5, 2023 · The heater attempts to light the burner three times before displaying the IF code and shutting down. The code protects the heater from damage caused by a gas buildup or other ignition-related problems. Common Causes of the Hayward Heater IF Code. There are several reasons your Hayward heater may be displaying the IF code. The Hayward Heater AO Code occurs when the blower vacuum switch does not close after the blower starts, when the blower switch opens unexpectedly during the operation, or when the blower prover switch opens during the post-purge cycle (when the heater is not firing). A: (From Tim David, Owner of Airlucent) Of course, I’d be happy to …The Hayward Universal H-Series gas heater is one of the most energy-efficient Pool and Spa heating solutions on the market! Its ground-breaking hydraulic design reduces pump circulation run time, giving you an energy savings of up to 18%! This unit is perfect for the environmentally conscious Pool and Spa owner thanks to its Low NOx capabilities.LP Error is usually LOW PRESSURE - low refrigerant charge, but on a HEAT PUMP if the condenser fan isn't working, you will also enable the low pressure senso...GAS HEATERS: Universal H-series ASME Heater: 3 Years: CHLORINE GENERATOR & UVO3 SYSTEMS: Saline C ® 6.0 & 11.0 Salt Chlorine Generators: 2 Years* None: 2 Years* None: 2 Years** 2 Years* *Salt cells carry an 18 month parts warranty. * No field labor, factory repair labor only. **Salt cells carry a 1 year full warranty & a prorated warranty for ...Step 2: Locate the inlet and outlet valves on your pool heater. These are typically labeled with "in" and "out" indicators. Step 3: Turn the valves to the closed position. This will stop the water flow through the pool heater. Step 4: Install a bypass pipe between the inlet and outlet pipes on the pool heater.Timely troubleshooting is crucial to prevent further damage to your pool heater. Common Causes of Hayward Pool Heater IF Codes: Insufficient water flow, a dirty or malfunctioning ignition sensor, a damaged pressure switch, or a faulty control board are common reasons behind the IF code.Sep 15, 2020 ... Bad ribbon cable plus broken vacuum sensor hose and to top it all off, some critters found a nice cozy home! "CE" code is normally fixed by ...Bad ribbon cable plus broken vacuum sensor hose and to top it all off, some critters found a nice cozy home!"CE" code is normally fixed by replacing the disp...You need to put the heater in STANDBY Mode to get the bO code on the heater display. Press the mode button once to get the heater in STANDBY Mode. First, press and hold on to the Down key. Then, press and hold down the MODE key as well. You need to keep holding both keys for about three seconds. At this point, the "bO" message should appear ...LP Error is usually LOW PRESSURE - low refrigerant charge, but on a HEAT PUMP if the condenser fan isn't working, you will also enable the low pressure senso...View online or download Hayward H250FDP Owner's Manual, Troubleshooting Manual ... Brands; Hayward Manuals; Heater; H250FDP; Hayward H250FDP Manuals. Manuals and User Guides for Hayward H250FDP. We have 6 Hayward H250FDP manuals available for free PDF download: Troubleshooting ... Diagnostic Codes and Part Numbers. 19. …Success: Hayward H400IDL2 gas heater electric start IF Code. I just thought I would share my repair as it looks like it is not widely described on the internet and brought my heater right back to life even though it had been ignored as "broken" for years. The code it was sending was IF (Ignition Failure). That usually indicates low gas pressure ... If your Hayward pool heater is displaying the LO code, it means that the limit string is open and the heater will shut down and enter lockout mode. To fix the problem and close the limit string, you’ll need to wait 2 minutes for the automatic restart. A malfunctioning temperature limit switch, water pressure switch, or vent pressure switch ... LP Error is usually LOW PRESSURE - low refrigerant charge, but on a HEAT PUMP if the condenser fan isn't working, you will also enable the low pressure senso...Some of the most reviewed products in HAYWARD Pool Heaters are the HAYWARD Universal H-Series Propane Gas 150,000 BTU Low NOx Pool Heater with 5 reviews, and the HAYWARD Universal H-Series Natural Gas 400,000 BTU Low NOx Pool Heater with 4 reviews. Related Searches. hayward pool heater.Models manufactured before Sept. 2010: measure across pins 1-2 (black & red), then 3-4 (white & blue) for 8-9 ohms. Models after Sept. 2010: measure for 4-5 ohms across the two terminal with wires. IF out-of-range, replace blower (pg. 20). IF correct, contact technical support (908)355-7995.Step 1. To perform a range test unplug the ACHN and hold down the "Teach" button. While holding down the button plug in the power cable. Step 2. Keep holding down the teach button until the LEDs flash in unison; once flashing let go of the teach button and watch the LEDs. Step 3.Are you experiencing a LO code on your Hayward H-Series pool heater? If so, give this video a watch for a few basic tips on how to work through the issue you...Main Takeaways. When troubleshooting a pool heater, check the power, temperature settings, filter, pool pump, and plumbing valves. Some common issues with gas pool heaters are with the pilot light, leaks, dark exhaust, and rust. I recommend contacting a professional to help with complex fixes such as electrical, plumbing, or motor issues.The Hayward Universal H-Series gas heater is one of the most energy-efficient Pool and Spa heating solutions on the market! Its ground-breaking hydraulic design reduces pump circulation run time, giving you an energy savings of up to 18%! This unit is perfect for the environmentally conscious Pool and Spa owner thanks to its Low NOx capabilities.Here are a few tips to help you get your heater ready for the winter months: 1. Drain the water from your pool heater. This will help prevent any damage to the unit from freezing water. 2. Disconnect the power supply to your pool heater. This will prevent any accidental damage to the unit while you are working on it. 3.Turn off your heater, wait a few minutes, then power it back on. If the AO Code persists, move on to the next step. Check the wiring: Inspect the wiring between the blower vacuum switch and the control board. Look for loose connections, damaged wires, or other signs of wear and tear. If you spot any issues, call a professional for assistance.Exiting Bypass Operation. To exit bypass operation and resolve the bO Code problem, follow these steps: First, set the heater to standby mode. Next, press and hold the Down key and MODE key for three seconds. Finally, verify that the display no longer shows the “bO” indication.Steps to Maintain Your Hayward Pool Heater. Step 1: Turn off the power supply and gas valve before performing any maintenance. Step 2: Remove any debris from the heater and surrounding area using a soft brush or vacuum. Step 3: Inspect the heat exchanger for any signs of corrosion or buildup.this part does not fit hayward low nox h series h250fdn pool heaters. look at the picture, the threads are way bigger. the description clearly says it does fit hayward h250fdn, dont waste your time. the description also says it is a hayward part but look at the difference from oem part to this in picture, not the same. false advertising.Heater Hayward ED2 Fault Code Thumbnails (18 pages) Heater Hayward C-SPA-XI 5.5 Installation And Operation Manual. Pool and spa/hot tub heaters (24 pages) Summary of Contents for Hayward H150FDN.In this video you'll see how a natural gas pool heater is wired and how the wiring is covered from 240 volts (double pole) to 120 volts (single pole). Also, ... Hayward City Hall 777 B Street Hayward CA, 94541-5007 Phone: 510-583-4140 Website: www.hayward-ca.gov Permit Center Hours: Please see website for operating hours Type “B” vent termination minimum is 1 foot above roof in approved cap. Diagnostic Codes Please contact a local authorized service center for service. go to: www.hayward.com and click on the “Dealer Locator”Models manufactured before Sept. 2010: measure across pins 1-2 (black & red), then 3-4 (white & blue) for 8-9 ohms. Models after Sept. 2010: measure for 4-5 ohms across the two terminal with wires. IF out-of-range, replace blower (pg. 20). IF correct, contact technical support (908)355-7995.The Hayward Heater HS code indicates that either your water temperature has exceeded a maximum of 104°F or the water temperature is changing at an unusual rate (faster than 6°F in 60 seconds or less while the heater) is on and firing.Turn off your heater, wait a few minutes, then power it back on. If the AO Code persists, move on to the next step. Check the wiring: Inspect the wiring between the blower vacuum switch and the control board. Look for loose connections, damaged wires, or other signs of wear and tear. If you spot any issues, call a professional for assistance.View and Download Hayward H150 installation, operation and service manual online. H150 swimming pool heater pdf manual download. Also for: H250, H200, H300, H350, H400, H210.Medallion Energy 3055 Tech Park Way Deland, FL 32724 407-786-0000. Hours Mon-Fri: 8am – 7pm Saturday: 9am – 5pm Sunday: By AppointmentSee more reviews for this business. Top 10 Best Heater Repair in Hayward, CA - April 2024 - Yelp - Artisan Air Heating and Cooling, Jazz Heating, Air Conditioning & Plumbing, AJ Heating & Cooling, Bay Area Climate Control, Air Flow Pros Heating And Air Conditioning, JR Heating & Cooling Systems, AIS Heating & Air Conditioning, JJ Heating and ...Turn the thermostat all the way up on the heat pump. These units are not compatible with 3 wire remotes. For 2 wire air switch installations remove the jumper between terminals 1 & 2 and replace it with the 2 wires from your switch. Set the thermostat on the heat pump to the desired temp. Wiring Diagram HPABG / HP380.Hayward H400FDP Manuals & User Guides. User Manuals, Guides and Specifications for your Hayward H400FDP Heater. Database contains 3 Hayward H400FDP Manuals (available for free online viewing or downloading in PDF): Service & installation manual, Troubleshooting manual, Owner's manual .Understanding the Hayward Heater BD Code. When your Hayward pool heater displays the BD code, it's essentially indicating a problem that needs attention. This code is a diagnostic tool designed to help you identify the issue so you can take appropriate action. While it may seem intimidating, diagnosing and fixing the problem can often be done ...Pumps, Filters, Cleaners, Heaters, Heat Pumps, some Incandescent Lighting and Accessories. Hayward's serial numbers for all products, with the exception of some cleaners, controls, heat pumps and electronic chlorinators, are 17 digits long and begin with the numbers '21'. Often these numbers appear on product labels with spaces or parentheses.Troubleshooting Steps. HS 1. Check sensor connections, replace sensor if needed. HS 2. Check water flow rate, clean the filter, and adjust settings. HS 3. Inspect gas supply, clean the ignition system, and ensure proper ignition. HS 4. Inspect the fan, replace if necessary, and check wiring.Hayward has an impressive range that includes just about anything an owner would need to maintain their pool. This includes pumps, filters, heaters, and automation systems. Hayward is known for their pumps and heaters (as we'll explore later). They have pump horsepower options ranging from 0.5 to 7.5, so there's something for everyone.Turn off the electricity and gas going to the pool heater. Open the faceplate of the heater, then locate the pronged ignitor. Remove the retaining bracket and screws, then disconnect the ignitor from the motherboard’s wires. Contact the manufacturer for a like-for-like ignitor part number, then attach it to the motherboard’s wires.Universal H-Series Natural Gas 400,000 BTU Low NOx. Hayward. SKU: W3H400FDN. The Universal H-Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional. Add to Compare. Add to Export.The hayward pool heater h5 code can be caused by various issues, including low water flow, high limit switches, or a faulty pressure switch. To identify the causes, check the water flow, inspect the switches, and consult the heater’s manual for troubleshooting steps.International Warranty The HAYWARD heat pump pool heater is warranted to be free of defects in materials and workmanship for a period of one (1) year. The compressor is warranted for two (2) years, and the titanium tube component of the heat ex- changer has a ten (10) year warranty. View and Download Hayward Spa Heaters owner's manual online.The Lo Code Hayward Heater is made of high quality materials that make it durable and long lasting. It is also very easy to install and does not require any special tools or skills. If you have a Hayward heater and it's displaying the "Lo" code, don't panic! This simply means that the heater's water temperature is too low.Hayward Heat Pump Lock Out Feature

Universal H-Series Natural Gas 400,000 BTU Low NOx. Hayward. SKU: W3H400FDN. The Universal H-Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional. Add to Compare. Add to Export.. Shoprite hours on easter sunday

if code hayward heater

Pool heaters work very straightforwardly: they generate heat to raise the water temperature. As long as they have a reliable water supply, the heater will not overheat. That’s why your unit will display the LO code when there’s something wrong with the water supply. The LO code signifies that there’s a low water pressure condition. […]New Hayward heater (propane) shows code 111. This code not in book. Do you know what this means? Reply. William. August 1, 2022 at 2:52 pm Hi Frank. To solve the issue, check the flame sensor & clean it when you get it dirty. Plus, you may need to replace the sensor if it is faulty. Also, make sure the burner below the sensor is burning.Step 1: Shut the power off and then take out all the screws from the display board. After taking off the whole board you'll see that there is a lower panel on the other side. Take off the two screws and undo them. Step 2: You'll see a ribbon cable. Take that off and then unscrew the underneath panel.Learn How Solar Pool Heaters Work; Learn About Hayward. At Hayward, we're more than just equipment. Learn more. Hayward Insights. Hayward Insights. Hayward Insights provides expert advice, tips, and industry updates to help pool owners and enthusiasts with their swimming pool experience. Gain insight. Support.Remove front & rear panels Remove wires from limit switches. Step 13. Remove the 4 screws from the bottom of the front and rear panels and pull up and out to remove each one. Step 14. Use needle nose pliers to remove the 2 red wires from each of the high limit switches. Remove wires from water pressure switch.May 26, 2022 · The control board oversees the operation of your heater, including monitoring temperature and safety features. In short, the Hayward Heater bD Code means there is a problem with the control board located on the right side of the heater. This can be caused by an open FC4 Fuse, faulty wiring, or a secondary high voltage fault. The Hayward Pool Heater SF Code is a safety feature that prevents the pool heater from over-heating. The code stands for "Safety Fault" and is displayed when the temperature in the heater exceeds 110 degrees Fahrenheit (43°C). It will shut off power to the pool heater until it can cool down to a safe temperature.Hayward CSPAXI 11 electric spa heater has 11kW, ideal for heating small pools, spas and hot tubs. Compact and fits small spaces with electric ignition. Call Us Nationwide: ... CODE: ELS 552-2 / 0005 $ 1,000.00. Raypak ET3 Digital Pool & Spa Heater 11kW. CODE: ELS 1102-2 / 0011First, turn off the power to the pool heater circuit breaker. This should immediately shut down the pool heater. If the circuit breaker does not shut off, you should call a professional service technician to come out and inspect the problem. Next, check the fuse box located near the pool pump. The fuses should be in good condition.We are attempting to start up our Hayward heater for the season, but getting an IF code. Power is on, gas is on, pool water is flowing. I can hear the heater try and run for a few …But, if you find your Hayward is still showing the IF code on display, then read our complete solution guide to Hayward pool heater IF code. You will definitely get the solution. 4.Diagnostic Codes Below is a list of all Diagnostic Codes for the HDF Heater. Troubleshooting Steps for each Code are covered on the following pages.The Hayward Municipal Code is updated on a regular basis. Review the Municipal Code here: Hayward Municipal Code. For additional information on the Hayward Municipal Code, please contact the Office of the City Clerk at 510.583.4400. Traffic Code & Regulations. Traffic codes are regulations governing parking and traffic movement.We have 4 Hayward H400FDN manuals available for free PDF download: Troubleshooting Manual, Service & Installation Manual, Owner's Manual Hayward H400FDN Service & Installation Manual (64 pages) POOL AND SPA/HOT TUB HEATERS"IF" Code 52-55 13. "AC" Code 56-57 14. "AO" Code 58-60 Heat Exchanger: Flow requirements 61 Heat Exchanger: Inspection 62 Heat. Hayward H400FDN | Universal H …The Universal H-Series Low NOx heater has an 84 percent industry-leading thermal efficiency and complies with all current California air quality emission standards. The low NOx emission makes it a perfect choice for the environmentally concerned pool owner. Enjoy a warmer pool this season without your fuel costs skyrocketing.Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com USE ONLY HAYWARD GENUINE REPLACEMENT PARTS 51 INTERNAL WIRING: If the heater display is blank after the electrical has been installed see Figures 43 and 44 to determine the.

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