How to troubleshoot a gas pool heater?
Ensure that the gas is turned on, and for propane, make sure the tank has fuel. Also, check for water run-off from the roof or sprinklers that may be flooding the pool heater. Check to ensure the heater pilot tubing is intact and not clogged. Confirm that the pilot orifice is not clogged with rust or small insects.
How to test pool heater pressure switch?
To see if the switch is working right, you can check it for voltage with a power meter or multi-meter. You can also temporarily bypass the pressure switch by using a jumper wire to make good contact with both terminals on the switch. If the switch is the problem, bypassing it should allow your heater to start running.
How to troubleshoot a gas pool heater pilot light?
This step of gas pool heater troubleshooting can be difficult if there is no pattern to the pilot light extinguishing. Ensure the pilot light isn’t being forced out by wind or water. Direct sprinklers and rain spouts away from the heater or use a cover that will keep rain and snow out.
What to do if your swimming pool heater is not working?
Make sure that the pilot is lit (millivolt heaters). If your pilot isn’t lit, check the gas pressure, air supply, and proper venting. Make sure the pilot tube is intact and not clogged. For MV heaters, if the pilot won’t stay lit, check the output on the thermocouple. Is the gas supply valve in the ON position?
What to do if your millivolt pool heater is burning?
When the millivolt power from the Generator reaches the Gas Valve, releasing the Pilot button will allow the gas to continue flowing to the pilot, if the power is sufficient. If you have a strong burning pilot, be sure that the flame is engulfing the Pilot Generator; sometimes they can slip down, away from the flame.
What happens if the pilot light is not lit?
Once the thermocouple detects that the pilot light isn’t lit, it turns the gas off as a safety measure. An unlit pilot can also stem from a dirty thermocouple as the dirt may be obstructing the current signal, which would also lead to a gas outage.
