Question about Heating & Cooling

1 Answer

Hayward h400 (electronic ignition) does not light. Jumped our pressure & limiter switches. Change gas valve. Still not lighting. Have plenty of spark. Help!!

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 25 Answers

If you have a multi-meter check for 24 vac between OR & W at the board or on the gas valve (OR & W are the 2 wires that go to the gas valve). Check the voltage while the igniter is sparking.

Posted on Mar 23, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Heater does not ignite. Not sure if it is not getting gas or if it is not igniting.


see if gas valve has voltage if so see if gas pressure is ok if ok see if ignitor has voltage or ohm it out should be about 78 ohms disconnected

May 08, 2013 | Hayward H-series Electronic Gas Pool...

1 Answer

IF error code when trying to start


Error IF is ignition failure.
Last page shows troubleshoot walk through ranging from low gas pressure to bad gas control valve to failed wiring etc
http://waterheatertimer.org/pdf/Hayward-error-codes.pdf

Oct 28, 2012 | Hayward H-series Electronic Gas Pool...

1 Answer

Need to replace Hayward H400fnd pressure switch


it is connected to the copper line going into the heat exchange two wires going to the board if voltage both sides ok check hi limits

May 08, 2012 | Hayward H-series Electronic Gas Pool...

1 Answer

I have an H400 electronic heater. I have power to it but when it is turned on nothing happens. I bypassed (hotwired) all the limit switches and pressure switch and even the valve on the advice of a tech...


If you have 24v coming from your transformer it is ok. Then you need to follow that 24v step by step through the system. You can't jump the thermostat so you have to check power in and power out. So this could be the ignition control but first see if you have the power in and out of the temp control. If this is the problem you should try a temp sensor first as it is cheap and easy.

Sep 24, 2010 | Hayward H-series Electronic Gas Pool...

1 Answer

I have a hayward H400 serise propane heater. I replaced the gas valve. When it goes tot turn on it takes about a minute then starts clicking to ingnite the gas. SSoem time it lights but then goes out other...


0. Check the spark ignitor conection to the board
1. Check the water by-pass valve if you have it
2. Check your gas pressure. (5-7"wc for natural gas, 9-13"wc for propane gas)
3. Clean your filter for your water system or remove it and try again
4. Check the Hi-limits on your heater
5. Replace the thermostat

May 27, 2010 | Hayward H Series Pool & Spa Heater 400k...

1 Answer

Recently I put a new heat exchanger on this H400 hayward heater. Went back out to check on it and the lights were not on anymore. So I checked the hi limit and replaced it and the heater worked agian. Went...


High limits are safty switches to keep the heater from over heating and runing your new exchanger. you will need to check the by-pass inside the water manifold. It could be the problem but hook up the limits in the mean time. As you are aware at this time the exchanger is your most expensive heater part you can buy.

Mar 22, 2010 | Hayward H Series Pool & Spa Heater 400k...

1 Answer

Hayward H400 heater won't light and service light comes on. Also gives a code on screen "AO". I can't find in the owner's manual what that means. It is the electronic ignition model.


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.

Sep 27, 2009 | Hayward H-series Electronic Gas Pool...

2 Answers

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.

Jun 06, 2009 | Hayward H-series Electronic Gas Pool...

1 Answer

I'm trying to start-up a Hayward H400 natural gas heater for my pool. It was brand new last season and worked perfectly. It keeps firing up for a little while (maybe 10 seconds on average) and then shuts...


if means ignition failure check that gas is on, check for fauilty igniter wiring or connections, inspect gas valve wiring measure voltage across gas valve during trial to ignition if 24 volt replace gas valve if no 24 volt replace control module

May 19, 2009 | Hayward H-series Electronic Gas Pool...

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

98 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2364 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...