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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have a Lennox system that uses the surelight 24L8501

Customer Question

I have a Lennox system that uses the surelight 24L8501 circuit board. When we try to turn on the AC, and small 2A circuit breaker trips. When the 2A circuit breaker trips and I try to reset it a few times, I can hear a relay noise on the board. I think I have a bad relay on the circuit board?
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.
on the circuit board...where the thermostat wires you have 2 wires in Y terminal?

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