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Goodman GMS90703BXA Heater - Page 11 Questions & Answers
Glow bar lights up, blower kicks on, air blows
Dirty flame sonsor.Left side of the burner rack..A steel pin with white porcelin & 1 wire to it.remove the one screw(1/4"hex) holding the bracket and clean/polish the rod part with light sandpaper or steel wool.Re-install and the flame should" Prove" and stay lit.Thanks
10/30/2011 3:23:33 AM •
Goodman...
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Answered
on Oct 30, 2011
Goodman furnace fan runs all the time
Hello, this can be caused by a bad relay on the integrated control board or a short in the low voltage wiring. Easy way to check is unhook the green wire from the G terminal on the control board, if it stops there is a short in tje wiring, if it does not stop the control board must be replaced due to a bad relay.
10/28/2011 3:40:36 PM •
Goodman...
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Answered
on Oct 28, 2011
How do i wire in series the rollout switches?
I recommend not to play with the wiring that controls the gas. There are safety devices that all work together. If you disrupt or bypass one of them, you are putting yourself in danger. Please do it right and save yourself problems and maybe your life!
10/28/2011 3:24:43 AM •
Goodman...
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Answered
on Oct 28, 2011
Pressure switch goodman furnace 100-4 blinks three
2nd question first here: Yes, inducer motor (exhaust fan) must run before gas an fire.MY FOLLOWING ANSWER WAS COPIED OVER FROM YOUR OTHER POST...I'm going to assume you can operate and understand a VOM, as well as being able to observe the proper safety procedures for performing service work.In the case of a control board returning an error code for a failing pressure switch, but the pressure switch actually checks out OK, try this:Test your exhaust fan power leads for power coming in from the board during the first few seconds at the start of the heating cycle. If power is not showing up there, there is likely another circuit malfunctioning somewhere preventing startup. However, if power is showing up there, then deactivate the system and disconnect the exhaust fan power supply leads from the motor. Test the motor's coil for continuity - a failed exhaust motor coil will result in no vacuum for the pressure switch, hence no heating cycle allowed by the control board.In my case, the exhaust fan actually failed due to a broken coil lead at the binding post to the push-on connector. I was able to repair the coil lead myself - at no cost - hurray!
10/21/2011 4:06:52 AM •
Goodman...
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Answered
on Oct 21, 2011
Pressure switch , trouble light blinks three times
I'm going to assume you can operate and understand a VOM, as well as being able to observe the proper safety procedures for performing service work.In the case of a control board returning an error code for a failing pressure switch, but the pressure switch actually checks out OK, try this:Test your exhaust fan power leads for power coming in from the board during the first few seconds at the start of the heating cycle. If power is not showing up there, there is likely another circuit malfunctioning somewhere preventing startup. However, if power is showing up there, then deactivate the system and disconnect the exhaust fan power supply leads from the motor. Test the motor's coil for continuity - a failed exhaust motor coil will result in no vacuum for the pressure switch, hence no heating cycle allowed by the control board.In my case, the exhaust fan actually failed due to a broken coil lead at the binding post to the push-on connector. I was able to repair the coil lead myself - at no cost - hurray!
10/21/2011 3:55:30 AM •
Goodman...
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Answered
on Oct 21, 2011
I have a goodman furnance there is a loose green
Hi, W/D here.A short green wire usually indicates a ground wire, and can sometimes have a terminal attached to the end of it. This wire would go to the frame of the furnace, as a ground wire for the motor, bonding the motor to the frame electrically. Usually, it is attached to the frame at the nearest point of contact, which usually is a motor attachment screw, or a green colored screw in the panel near the motor, and will sometimes have the grounding symbol near it. Before making any connections, check your wiring diagram first. It will be either in your paperwork with the furnace or attached to one of the panels near the motor. It can also be located inside the furnace electrical panel on the furnace, so make sure that the power is turned OFF (trip the breaker, and test it) before opening the electrical connection panel. Once you locate the schematic with the motor on it, find the green coded wire on the schematic and see where it goes. My experience has been that it will be a ground wire, but you have to check.Best regards, --W/D--
10/20/2011 1:13:31 PM •
Goodman...
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Answered
on Oct 20, 2011
Diagnostic light blinks three times. there is no
Blow in the opposite direction on the pressure line, blowing or sucking towards the pressure switch will click, and let you know it's working, however what you're looking for is an obstruction in the port on the other side of that tube, which would be giving the pressure switch a false reading. So blow through in the other direction, it should flow. If not, take a paperclip and **** out that port. Also, I believe 3 blinks on a goodman could also mean failure to light. Which is most likely an ignitor failure. If you can get a visual on the ignitor, look for a crack. if not; take a multimeter, put it on the continuity test (the meter should beep when the terminals touch). unplug the ignitor and put the terminals in either side of the plug (from the ignitor, not from the control board) It should beep, representing continuity through the ignitor. if it doesn't then the ignitor has failed (to be sure pull it out and look very closely for cracks, sometimes only represented by a white line) and needs to be replaced.Good luck.
10/19/2011 1:10:05 AM •
Goodman...
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Answered
on Oct 19, 2011
Need instructions for gmp 32000s
Call Goodman, they send their heaters with big instruction bundles inside, and I'm sure they'd be able to sell you a package. If not, ask a supplier (simply because they have the leverage over goodman to make demands).If you're looking for troubleshooting, on the inside of one of the doors is a wiring diagram and often a troubleshooting guide.
10/19/2011 12:56:39 AM •
Goodman...
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Answered
on Oct 19, 2011
I cannot get power to bring the induction fan on.
Solid red is normal, no call for heat. Try jumping (in the FAU) between the R and W thermostat terminals on the circuit board. Be sure when you do that the interlock safety switch is on delivering power to the heater, the red light is on. Also be careful not to touch the R side to any ground, it may blow a fuse within the circuit board. If that works, try jumping from the thermostat itself (remove the thermostat and jump the red and white wires) if that works, your thermostat has failed... replace. If jumping the terminals in the FAU fails to run the inducer fan I suggest you call a technician, as something in the circuitry has failed and will probably need to be replaced. If jumping from the thermostat wires fails, then the wire is broken somewhere between the thermostat and the FAU (either by literal break, or a signal interruption... like a security system or zoning system).Good luck.
10/19/2011 12:50:33 AM •
Goodman...
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Answered
on Oct 19, 2011
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