Have HVAC Questions? Ask an HVAC Expert for Answers
Can you give me the complete model number on the furnace? It will be on a label on inside furnace panel just above burners. The model number will help me give accurate assistance for your specific unit.
Below is a link showing where to find label with model number:
If furnace is not coming on, there should be an error light flashing on the control board in blower compartment to indicate what has failed. If you can locate this and tell me the pattern of the flash, that will point us in the right direction for troubleshooting.
Also let me know if you have a multi meter for troubleshooting.WE will go from here.
Lets work on one unit at a time.
WE will start with the one you gave me model number on. Turn thermostat to call for heat and tell me if the small vent motor come son
OK next tell me if you have a glow bar or a spark igniter (Goodman used both) and if it glows or sparks?
OK does it look like this?
Look closely and see if it looks broken
Do you have a volt meter
Our first step will be to get a meter and see if the board is sending 120v to that igniter.WE can unplug the connector and put one lead into each side of the connector.We have to get 120 v before igniter will glow. You can et an inexpensive meter at Walmart for about 20 bucks if this is something you want to troubleshoot with my guidance.
Sure, Give me complete model on it please if different
Ok same unit just smaller, so we will go through exact same questions.I understand it lights but goes right back out, correct?
OK lets start on that one by cleaning the flame sensor.You can do that with a dollar bill or fine sandcloth. You will have to remove a screw to get it out to clean it. See below
OK lets turn power off, then back on and try heat again
OK do we get a flash code on this one?
OK we really should be getting error codes when these furnace fail.
That is a lockout does it go to one blink on first attempt?
Make sure the wire connection from the flame sensor is clean and connecting good on flame sensor and where it plugs into board
I will be happy to request a refund if you are serious.This is not a free service.We are on the honor system here.I am only paid for my time when you rate my answer 3 or higher.I have dedicated my time to you with step by step guidance in an appropriate troubleshooting manner. Because you do not have or want to get a meter and finish is really not my fault.I am more than willing to continue until we are finished at a later time if it is more convenient for you.Please confirm one way or the other.I really hate for us to give up on this after investing over an hour working on it.We have eliminated quiet a few things and are on track to resolving your problems.
But like I said, we are on the honor system and strive for 100 per cent satisfaction from our customers.
I understand,I will request your refund at this time.Hope you are able to get these issues solved soon.Thanks for letting me work with you.