Question about Goodman GMS90703BXA Heater
Diagnostic code blinks 4 times
How do I light the pilot light? It is suppose light auto but will not . I had the valve turned off during the Summer mo. as I was using the air cond. The gas is on, elect. is on. I can turn the heater on and the small fan will come on and littlered light will blink 3 times but the heater will not ignite. How do I correct the problem?
Posted on Oct 24, 2008
If you look at the wiring diagram in your furnace you will see that 4 blinks means there is either a blockage of air or your room air blower is not working. Check the air filter for any debris first. Then test the room air blower to see if it turns on and blows enough air prior to going out on code. Are all the dampers open both in the pipes as well as at the registers?
Posted on Oct 21, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Ground Circuit for ground
Diagnostic enable circuit for an open or high resistance
Transfer case shift control switch connector
If more than one code is stored, the first code will blink, followed by a 3 second pause and then the second code will blink.
This sequence will continue until PIN 13 on the DLC is no longer grounded.
If the TCCM will not communicate the presence or absence of DTCs, test the above circuits in Self-Test Step 2. If the circuits are complete, then replace the TCCM. Refer to Transfer Case Shift Control Module Replacement .
Let me know if you have any codes , I have code definitions an procedures.
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