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View Full Version : Goodman 100-3 will not heat


linda_tbird
Oct 26, 2008, 02:43 PM
Problem is with Goodman 100-3. The ignitor will glow and then go out. It does this 3 times then stops completely. No flames at all. Looking through manual can not find where the circuit board is located. I've been researching online and it states to watch for blinking lights from the circuit board and this will help get a "code" to diagnose the problem. Have no idea where the circuit board is even located. No heat is being put out at all. Motor will run just briefly as the ignitor is glowing... then it all stops.

hvac1000
Oct 26, 2008, 03:21 PM
Please post the entire EXACT model number.

linda_tbird
Oct 26, 2008, 04:14 PM
Exact Model Number GMP 100-3
Serial Number 9507804317

hvac1000
Oct 26, 2008, 05:39 PM
Exact Model Number GMP 100-3
Serial Number 9507804317
http://securenet.goodmanmfg.com/pdf/infoPdf/images/P-370.006.gif

hvac1000
Oct 26, 2008, 05:40 PM
Try looking in the blower compartment.


B1809913SHSI BOARD W/9-PIN CONNECTOR

Original part number above. Might have different part number by now.

hvac1000
Oct 26, 2008, 05:44 PM
http://securenet.goodmanmfg.com/pdf/infoPdf/images/P-370.004.gif

MarkwithaK
Oct 26, 2008, 06:01 PM
Just from reading your problem I would start with the valve. It may have either stuck or failed.