No Panel Lights on Hayward H350FDN/P Pool Heater

[Robert Julius]

Yesterday I opened up my pool and started the heater. It brought the temperature from 68° F to 80°F last night. Today I checked the heater and there are on display lights on the panel. When I turn the power off then on again to the heater, still no display lights, but the blower kicks on for about 30 seconds then shuts down. Does anyone have any suggestions? The heater is about five years old.

 

[ajw22]

Welcome to TFP.

Check the fuses and follow the diagnostic guide.

http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf

Let us know what you find.

 

[1poolman1]

Yesterday I opened up my pool and started the heater. It brought the temperature from 68° F to 80°F last night. Today I checked the heater and there are on display lights on the panel. When I turn the power off then on again to the heater, still no display lights, but the blower kicks on for about 15 seconds then shuts down. Does anyone have any suggestions? The heater is about five years old.

What is controlling the heater?

 

[Robert Julius]

Welcome to TFP.

Check the fuses and follow the diagnostic guide.

http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf

Let us know what you find.

Thanks. The three fuses I found are all good. I'll check for others. The troubleshooting guide doesn't speak to a control panel with no lights.

 

[Robert Julius]

What is controlling the heater?

I'm not sure what you are asking.

 

[ajw22]

I'm not sure what you are asking.

Is the heater connected to any automation controller?

 

[Robert Julius]

Is the heater connected to any automation controller?

No it is not. I suspect there is a problem with the keypad.

Thanks. The three fuses I found are all good. I'll check for others. The troubleshooting guide doesn't speak to a control panel with no lights.

I replaced the board beneath the keypad. This board contains the LED's for the temperature and for the feature selected. The heater now works as advertised.