Question about Goodman GMS90703BXA Heater

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Doesnt do anything

I have tryed to jump the thermastat wires nothing happens. there is no lights that show up inside. I can trace power to the transformer but not out. Is this my problem? and I find modle cr453xt1ae1ep on the transformer does this if bad need to be replaced with exact same?

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It's the transformer. Match the new one as close as possible to the old if not exact.

Posted on May 16, 2008

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Furnace keeps tripping the breaker changed breaker and wires all good up to the furnace still keeps tripping when i try to turn power on. nothing happened to the furnace and the wires were tested up to the...

Disconnect the black power wire where it is connected to the furnace with breaker off. Put a wire nut on it and then turn the breaker on. If it continues to trip, the problem is not the furnace and you will have to trace the power wire back to the breaker box to find problem. Next, disconnect the black wire from the breaker (with breaker off) and then snap breaker on. If it trips, bad breaker. If the furnace was disconnected and breaker did not trip, you have a short either on the P C Board or the transformer.

Mar 31, 2011 | Heating & Cooling

1 Answer

Need a wiring diagram to hook up a wall thermastat from breaker box to the thermastat to the baseboard heater

Please view the videos below how to install...Good Luck ...Jim



This video will show you how to install the wire and breaker for a 230 volt sourse

These two video will show you how to install the heater and thermostat.

Feb 17, 2011 | Honeywell (CT62B1015) Baseboard Heater

1 Answer

Installed a new thermastat and nothing. It is a two wire basic system. when I jump it nothing happens. Is the thermal couple bad

well depending if this unit has a pilot ? if so is it lit? and if not yes thermocoupler sends voltage to gas valve to let it know its ok to open

Nov 26, 2010 | Cozy (W352E) Heater

1 Answer

I have a goodman gms9 gas fired furnace that does led light,fans or anything.there is power to the unit and was working when shut down for the summer.

Look on the circuit board for a small fuse. Replace if necessary. take a small piece of wire and with the door safety switch taped down, jump out R and W terminals on circuit board. Unit should power up. You can also jump out R and G terminals and room air blower should turn on. If nothing, replace circuit board.

Nov 23, 2010 | Goodman GMS90703BXA Heater

1 Answer

I have a mhu45ng mr heater. When i turn it on nothing happens. It has 120v power and 24v power. The light on the circut board does not come on at all. The gas is on the thermastat is on and the power is...

check the fuse, I believe it is a 3 Amp , there is also a safety switch, when you remove the panel it is on the top you can push it in and the light should light after a few seconds. Hope this helped Tim

Oct 16, 2010 | Mr. Heater MHU45LP

1 Answer

New Furnace Coleman Model 8623A Ser#037873318

Red wire to R. There may be a R, Rc, Rh, You will have either one or 2 of these. They shaould be jumped together with a small jumper from the factory. Then white to W, green to G and yellow to Y

Mar 20, 2010 | Coleman Heating & Cooling

1 Answer

Went to bed last night with heat woke up today everything house was cold, looked at thermastat it said 63degrees,, checked out furnace it starts up but doesnt ignite, sounds like its in the start up stage...

Does the hot surface igniter glow? If not, it is probably cracked. If this is
a 90% furnace, it could be that yuor intake air is causing the problem.

Dec 27, 2009 | Goodman GMS90703BXA Heater

1 Answer

Reverse polarity

Its a simple fix. Follow the cord that plugs into the wall into the furnace. Or if its hard wire, follow the romex wire that goes into your furnace. Inside the furnace, switch the white and black wires that connects to the power cord.

Oct 18, 2009 | Heating & Cooling

1 Answer

Power light comes on but it doesn't run

You need to trace the path of electricity. With it unplugged, remove the cover and look at the wiring from the power light on, Its possible that a wire burnt off, you will be able to see it easily if so. If its an internal short, like inside the thermostat or power switch, then you need a meter to accurately find the problem, or change parts and hope to get lucky.

Mar 14, 2008 | Lakewood LAKQTV22 Utility Heater

1 Answer

Less then a yr. old double sided wall heater

First make sure the thermostat is working right. Make sure the wire connections on the valve are good and tight. If all good, culprit is the thermocouple or pilot generator also called a thermopile. Different style and names, all have the same purpose.

Dec 12, 2007 | Heating & Cooling

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