Single led flash blinks on and off.
Goodman furnace 4 blinks.
Translate four led flashes to mean your furnace has a primary limit circuit open possibly from loose wiring or blocked filters.
A high limit switch protects the furnace against overheating and damage it s located in the output duct or plenum of the furnace and turns the furnace off if things get too hot up there the usual cause of a high limit trip is inadequate airflow in your case because an apparently faulty connection was causing the fan to not run.
Goodman furnace 4 red led blinks indicating high open limit.
After one hour of lockout your furnace will automatically reset itself.
I m not a tech and just some diy on how to trouble shoot a faulty limit switch.
This could be a.
The furnace tries to light however won t stay lit.
Check and clean filters tighten wiring and check the flue for blockages level 2.
Came home to a cold house blowing cold air.
Interpret five led flashes to mean your goodman furnace senses a flame without a call for heat.
We have this problem happen before when the power went out it trips the limits so it doesn t burn up the blower.
After trying this 4 times the led flashes 4 times and the chart states that 4 flashes means read more douglas.
Ok there are several basic blinking codes on the goodman furnace.
Check and clean filters tighten wiring and check the flue for blockages.
I reset the limits on both sides and it works for a few minutes blowing heat goodman furnace with 4 blinks on red light.
High limits and you.
Induction motor was running non s.
Translate four led flashes to mean your furnace has a primary limit circuit open possibly from loose wiring or blocked filters.
This means that the draft blower isn t functioning properly or your furnace has a short in the pressure switch circuit.