Goodman Furnace 4 Blinks Limit Switch

The pri mit will give you a 4 blink code.

Goodman furnace 4 blinks limit switch. Everything seems to work fine up until the point where the blower needs to turn on. When thermostat kicks on furnace lights as expected. Founded in 1982 goodman manufacturing is an american company that produces heating and air conditioning equipment for residential and commercial customers. Goodman furnace 4 red led blinks indicating high open limit.

We have this problem happen before when the power went out it trips the limits so it doesn t burn up the blower. Open limit switch on concord gas furnace 14 answers i have a concord 80 plus gas furnace. Interpret five led flashes to mean your goodman furnace senses a flame without a call for heat. Came home to a cold house blowing cold air.

Usual causes are a dirty filter blocked return air grille dirty evaporator coil if equipped with a c restricted air flow dirty blower wheel or blower not operating. Goodman furnace with 4 blinks on red light. Induction motor was running non s. I m not a tech and just some diy on how to trouble shoot a faulty limit switch.

Goodman residential furnaces contain multiple limit switches to ensure safe operation. I had the same problem last year but got a tech to fix it. I am starting the furnace for the winter and it gives me a led code of open limit switch or limit switch circuit. I reset the limits on both sides and it works for a few minutes blowing heat goodman furnace with 4 blinks on red light.

Blower and exhaust fan still running. Check and clean filters tighten wiring and check the flue for blockages. Open rollouts 6 blinks. Open aux limit won t give you any code it s downstream of the board.

It will just kill the power to the gas valve in the unlikely event all the other limits fail. Found the 4 blinking red light error on the board which states a limit switch problem. I tested all the limit switches for continuity and all were fine. First run will go about 4 minutes before flame goes out.