I have a Laars LD250N heater that quit on me recently. Found a troubleshooting guide from Jandy that goes through step by step testing for 24V at various different locations. I got all the way to Step 7 where it asks
24V at black/yellow wire of the Ign Controller? Answer is "no" which then takes me to, "Is Temp Board calling for heat?"
How do I know for sure if the Temp Board is calling for heat?
I assumed that it is and the next step says "Do Thermistor Test". Can anyone then also tell me how do I perform a Thermistor Test?
Thanks!!
24V at black/yellow wire of the Ign Controller? Answer is "no" which then takes me to, "Is Temp Board calling for heat?"
How do I know for sure if the Temp Board is calling for heat?
I assumed that it is and the next step says "Do Thermistor Test". Can anyone then also tell me how do I perform a Thermistor Test?
Thanks!!
