Ask Experts Questions for FREE Help !
Ask
    Steven64's Avatar
    Steven64 Posts: 1, Reputation: 1
    New Member
     
    #1

    Oct 15, 2012, 07:58 PM
    Goodman furnace gmp100 4 diagnostic codes
    I have a goodman 100-4 rev8 and believe it was born in 1993. I have cleaned the flame tubes and replaced the flame senser and I have also bi-passed the rollout switch's trying to diagnose why it ignite's but will not stay fired.all my knowledge tells me it's a faulty safety issue.What am I missing and the code light is a continueous blink. Can someone help?
    zieggyjr's Avatar
    zieggyjr Posts: 1, Reputation: 1
    New Member
     
    #2

    Mar 7, 2015, 12:11 PM
    The furnace has a flame sensor (Repair Clinic # 2645136). It tells the control board if the burners lit.
    If the burners do not lite, then check the igniter.
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
    Ultra Member
     
    #3

    Mar 7, 2015, 05:00 PM
    I can't find the blink codes in my Goodman manual but I believe a contstant blink to be reversed polarity but in reality it often indicates a bad board.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Goodman GMP100-3 Furnace won't Stay On. [ 14 Answers ]

Hello, I have a Goodman Furnace (model # GMP100-3). The furnace will not stay running. Here is the sequence of events for two different scenarios that are occurring. Scenario 1 1. Thermostat Calls for Heat 2. Inducer starts 3. Pressure switch closes 4. Heating element glows 5. Burners...

Goodman gmp100-5 furnace fan stays on [ 1 Answers ]

My Goodman furnace fan stays on... even with the thermostat disconnected. The red status light stays illuminated the whole time. Do I need a new control board maybe? Any help appreciated. Thanks...

I have Goodman GMP100 furnace. The vent blower won't run [ 1 Answers ]

On the Goodman GMP100 furnace, the vent blower tries to run but stops immediately. The status light blinks 3 times. Is there a way to find out if the vent pressure switch is defective?

Installing a Goodman GMP100-3 Furnace [ 8 Answers ]

I know a model GMP furnace is a multi position unit, but does that mean it can be installed upside down (needs to be downflow)? Just checking before the installer does this...

Anyone know the diagnostic codes for a goodman furnace? [ 3 Answers ]

Hi, I have an older model goodman furnace that powers up the vent fan and proceeds far enough in the sequence for the electric igniter to glow, but then never releases gas to complete ignition. I replaced the gas valve last year, so I am hoping it isn't this again. I am getting an error code on the...


View more questions Search