Question about Hayward H - Series 400 Heater Top for In - Ground Pools and Spas - Dhi400

2 Answers

Hayward heating pump won't ignite.

Heater pump won't ignite green light comes on for few seconds and then goes off.

Posted by jose mendoza on

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2 Answers

Jack Felton

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  • Expert
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Check the water pressure if it is low it will not keep burning

Posted on Oct 05, 2014

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David Spradling

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If new and wired for 120 voltage reverse black and white wires if reversed they wont show rectafication if old heater replace or clean up flame sensor

Posted on Oct 04, 2014

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Anonymous

  • 1 Answer

SOURCE: Problems with Hayward 100,000 Btu Heater

I am sorry to report that this is a very common problem for this heater. Here is more information than you want: http://forum.doityourself.com/pools-spas-hot-tubs/345253-hayward-h100id-ignites-but-cools-quickly.html

Posted on Jun 09, 2009

Anonymous

  • 139 Answers

SOURCE: Hayward H250 FDP Pool heater won't stay lite

sounds like a flame sensor.remove ignitor assembly and clean with fine emory cloth or steel wool.when properly cleaned it should feel smooth for entire length of sensor

Posted on Jun 21, 2009

Kieran Ruppert

  • 990 Answers

SOURCE: Hayward H400 heater won't light and service light

This is a code for what is called a prover switch. What it is a circut for the air pressures. Depending on model you can have one or two of these. Their will always be one for the exaust perssure and this will often be the culpret. If the sensor is good a sooted exchanger, rat nests on the exchanger or in the exaust can cause this. If you have a second switch it will be for burner air pressure and you will look for the same problems only inside the burner cabnet. Good luck, I'm sorry I can't be more help. But at least you know to look to the vent system.

Posted on Dec 29, 2009

thepool

thepool

  • 78 Answers

SOURCE: Hayward H400 Pool heater will not stay lit

"IF" - Hayward Pool Heater Fails to Ignite: the most common reason for this problem is insufficient gas supply. The Hayward heater LED display will show a diagnostic fault code of "IF" which stands for Ignition Failure. Undetected gas pressure problems if not investigated properly may result in unnecessary replacement and servicing of your Hayward Pool Heater.

Posted on Apr 23, 2010

Anonymous

  • 64 Answers

SOURCE: H Series Pool & Spa Heater 400k Btu Propane Gas Milivolt Ignition H400p1: how do i fix the AO code on my hayward heater?...

AO will apply to your blower, blower tubing, or blower vacuum switch. You need to check these items.

Posted on May 20, 2010

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1 Answer

Hayward heatpro running but not heating. The "run" light is yellow but it should be green


i have found nothing in any of my heater manuals to account for the color of the light. in every instance, the light is either lit or not. the color does not change.
as for the not heating, if the outside temperature is less than 60 degrees, your heat pump will not work well. as heat pumps do not heat water very efficiently, there may not be a noticeable difference in water temp. the best way is to measure the temperature going into the pump (outside ambient temperature) and the temperature of the air exiting the top of the heater.
if the outside temp is 70 and the air out of the heater is 65, there is a 5 degree temperature applied to the pool water. this can be diminished due to transfer of heat to system

Jun 09, 2015 | Hayward 116k BTU HeatPro Digital Heat Pump...

1 Answer

My hyward H400ID won't ignite green light comes on for few seconds and then goes off. Need help


There are many questions needing answered. Is the fan coming on, if not it could be the fan proving switch. If the fan is coming on but the heater does not light there should be a code on the heater. I added a link to the manual for this heater. http://www.hayward-pool.com/pdf/manuals/H-seriesLowNOx-H250IDL2-H350IDL2-H400IDL2.pdf

Sep 21, 2014 | Pool & Spa

1 Answer

Green light comes on , can smell gas and hear buzzing from igniter but shuts down after 3 seconds and green light goes out


Make sure you have no soot build up on your ignitor. It will conduct elect so you can hear a buzz instead of a clear spark. Without a clean spark it wont fire and for safty it shuts down to keep gas from building up in the cabnit.

Sep 29, 2010 | Hayward 250kbtu Ng Pool Heater - Inground

1 Answer

Hayward heater not staying lit


possibly poor pilot adjustment or insuficient mv output from thermopile

Jun 19, 2009 | Hayward H Series Millivolt 250,000 Btu...

2 Answers

My heater starts and then after about 3 seconds shuts off


Either , you really don't have good pressure (below 18 PSI on filter) or your water pressure swith is defect.
Try placing your filter on "recir" and fire the heater , if it fires and stays on .....it's definitely your pressure -back wash.
hope it helps

Jun 07, 2009 | Hayward H Series Pool & Spa Heater 400k...

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