Hayward H400 Heater will not operate

Jump to latest Follow Reply
T

thetinkerer

0
Feb 25, 2011
67
Dallas Texas
I have an H400 Hayward pool/jacuzzi heater that would not fire up after it sat for about 4 months not being used. Prior to this for the last 9 years it worked flawlessly. The heat is outside but under an awning.

Yesterday I open her up and made sure all contacts were clean and no cobwebs or spider webs were present.

The control panel lights up as though it is working fine. I do get the "bo" code but I have always gotten that code since we have owned it.

I checked the voltage coming in and it is 240vac. and I checked the voltage on the other side of the front panel switch and it is 240vac.

I then checked the voltage across the T terminals on the Thermopile and when I set the VOM on 200mv it reads 1.5 to 1.6. I think it is supposed to read 450 to 550???

I pulled off all the terminals and cleaned them.

Then I noticed the fan motor casing was very hot, so hot IO could not keep my fingers on it.

I do not hear any noise when it is turned on and I do not hear a pilot light lighting up when it is suppose to kick on.

I am not sure what to do next. I hope I can get fixed without having to call someone out.

Oh I should mention that rodents chewed thru some of the wires that go from the Jandy computer/control center to the heater and so I replaced the wires and the power on the heater control panel returned.

I also made sure no water was in the tubes that run from the temp limit switches. I also removed the igniter and the other "probe" that sticks inside the burner box and blew compressed air on them.

TIA
 
What is the exact model you have? Is it a IDL series or an ED2 series? "bo" means it is in bypass operation because you have the Jandy automation. So that is normal.
 
OK. Sounds like a bad motor or the run/start capacitor. If you look at the end of the motor, you can see the end of the motor shaft. You can try to spin it with your finger. If you can, that might get the motor started spinning. Then that tells me the capacitor is bad. If you can't spin it, then the motor is frozen and you most likely need a new motor.
 

Enjoying this content?

Support TFP with a donation.

Give Support
You must log in or register to reply here.
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.
Top Bottom
Back
Jump to latest Follow Reply