Question about Goodman GMS90703BXA Heater

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There is a diode jumper connected to the thermostat bus board . I forget wher it was connected. YWRGC?

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The only reason thier should be one is if you use baseboard heat. if not it just gets wired r-red w-white y-yellow g-green comm is blk or brown what ever is left in your wire pair

Posted on Jun 05, 2010

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Unable to get ac compressor to start


HI,

you may get a pdf download of the manual form this site Programmable thermostats at discount prices at hunter-thermostats.com.

they may have the model you require .

Goodluck,
Please don't forget to rate the solution

Apr 23, 2008 | Hunter Fan Company 5/1/1 Programmable...

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No power to unit replaced thermostat , door switches, diode on capacitor but not the two fuses continuity goes to 0


There are 2 thermostats or "thermal fuses" in it that would cause no power. One is on the magnetron, the other is above the microwave cavity near the middle. Have you checked/replaced both? You should have 120 volts between the white wire on the main relay on the circuit board & the black wire in the smaller connector on the board. If you do, bad board, if not, something before the board (fuses, thermostats, noise filter board, etc). Door switches, diode, capacitor would not cause no power to unit.

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The television picture just went out in the middle of watching it. The audio is still working.


I would be concerned about the convergence board. I have repaired a few of these and by now you have several bad grounds in the convergence board.The convergence IC has separated its pins from the board. I can not say enough about bad grounds here. They are too numerous to even begin. One will have to pull this board very carefully, this is no easy task. Examine it very, very close. You will find several bad grounds, power resistors, diodes. the IC itself, jumpers, and jumper jacks that connect the boards, transistors, capacitor grounds, any other IC that is attached to heatsinks etc. The other board will be the power supply board and it will have many bad grounds here as well. The vertical IC can be a culprit, as the pins on here have separated as well. Once again look for bad solder grounds on the flyback. horizontal transformer, transistors,diodes and the like. Always inspect the pins on ICs attached to heatsinks. I know this sounds like a lot of work and it is. But with patience it may be done. You soon learn why they charge a lot for repairs. Thanks for asking and show a few hands of support!

Mar 12, 2011 | Mitsubishi WS-48315 48" Rear Projection...

1 Answer

AC IS TURNING ON BY IT SELF AFTER I SWITICH IT OFF, HOW TO SOLVE THIS PROBLEM


Sounds like a problem with the furances circuit board. With the furance powered off, disconnect the two wires at the circuit boards thermostat terminal strip. These are probably red and white wires connected to the "Y" and "C" thermostat terminal strip on the circuit board. These two wires send 24 volts to the outside A.C. condenser unit when the thermstat is se tinto the cooling mode. With the thermostst in the "off: postion measure across the "Y" & "C" terminals at the furances thermostat terminal strip. If you have voltaged than either the board or thermostst has failed. The next step to determine which has failed is this. Disconnect all the thermostat wires at the furance. To check the heating circuit jumper across the "R" & "W" terminals, the furance should fire off for the heating circuit and run non stop beacause the thermostat is no longer controlling it and is isolated from the furance. Now remove the jumper and jumper across the "R" &"Y" terminals, the blower should run at your furance for the cooling mode and you should have 24 volts across the "Y" & "C" terminals for the outside A.C. condenser compresor contactor.Next check for blower operation by jumpering across the "R" & "G" terminals. If everything checks outs than the thermostst is the problem. Tou may also want to check the control wiring at the thermostts , furance & out side condenser unit. If the wiring has connnected somewhwre between these points or at the terminal connection this may also be bring on the A.C. when the thermostat is in the "off position.

Feb 13, 2011 | Hitachi Heating & Cooling

1 Answer

I want to put in a new thermostat but I do not know how to connect the Rh wire with jumper to Rc wire to new thermostat! it only has labels for O/B Y R G W . no hook up for the Rc OR Rh


This means that the new tstat does not require RC to RH jumper. Some TSTATs to and others don't. Leave the jumper off and do not worry about it as the board in the tstat automatically controls this aspects of the unit.
Hope this helps. Please leave feedback...

Jan 28, 2011 | Heating & Cooling

1 Answer

I HAVE A 6 GAL ATWOOD WITH ELECTRONIC IGNITION ,I HAVE CHANGED THE ECO AND TSTATS I HAVE CHECKED THE CONTROL BOARD ( ITS GOOD ) THE GROUND IS GOOD ,IT WILL START AND RUN FOR 1 MIN AND SHUT DOWN CHECKING...


One thing you may want to try, if it has electronic ignition, is to remove the thermal cut-off diode from the circuit temporarily. It's the little diode inside the clear plastic tube, that is connected to your incoming power wire, and connects to thermostat. Simply remove it from the spade connector at the thermostat, and pull it apart at spade connector from incoming power wire, and connect incoming power wire to spade connector on thermostat. If you try to light it now, and all works good, the diode is faulty, and should be replaced.

May 11, 2010 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Just installed the honeywell thermostat. the ac turns on, but not the heat. what do we do?


Some of the thermostats from Honeywell require a jumper wire on the thermostat between the RC and the RH connection for the heating to operate. It is possible that your installation needs this jumper wire installed for the heating to work.Verify that this jumper wire is installed if your thermostat requires it. If it requires the jumper wire and you do not have one you can cut a small piece of existing wire on the connections to make a jumper wire. There are also some thermostats with a jumper switch for electric heat and gas heat...make sure that it is on the proper setting.

Dec 02, 2009 | Honeywell Electronic Programmable...

1 Answer

Hav K7T266 Pro2 motherboard, can not get it to go past turning on


Lorna,
to change bus to 133 MHz, you need to unlock the speed by setting a corresponding jumper on the board to assign busspeed by bios. After doing so, you need to clear CMOS and reboot. Next you'll have to set speed and multiplier in bios. Ideally: 900MHz = 100 x 9. Alternatively: 133 x 6.5 If that doesn't help...check if your RAM-modules are any good anymore. When RAM is not functioning, CPU-error code may be presented, since CPU cannot read/write to RAM, therefore not function. Let me know how this turns out.
Kind regards,
Stephan

Jan 30, 2009 | MSI K7T266 Pro2 (MS 6380-060) Motherboard

1 Answer

Commercial generator 20kv not working properly


Troubleshoot like this:
1 - With the generator control in Auto, jumper from terminal 3 to 4 on the control board. Generator should start without transfer switch doing anything. If it won't you have a bad controller board.

2 - If the Generator started, remove the jumper - controller is OK. Next go to the 1st transfer switch and find the remote start terminals. These will be the same wires that were connected to controller terminals 3 and 4 at the generator. Use your jumper wire to connect them and see if the generator starts, if not there is something wrong between the switch and the generator, probably a broken wire.

3 - Don't forget to check the other switch, the remote start terminals of the switches connect in parallel across controller terminals 3 and 4 so that either switch can start the generator.

4 - Each switch should have some sort of a test button/switch, power down as much of the building as you can, then run the test function of each switch one at a time. Don't stand directly in front of the switch while you do this.


Nov 20, 2008 | Electrical Supplies

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