Question about Goodman GMS90703BXA Heater

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Connection Just installed the heater furnace but do not know where to connect the wires from the central air conditio unit outside.

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What do you have for wires from the outside unit? Tell us what colors coorispond to what terminals they are connected to outside.

Posted on Sep 18, 2007

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Posted on Jan 02, 2017

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We put in a hunter thermostat and now our central air conditioning unit is blowing cold air with the heater on.


Susan,
This means that the new thermostat is wired wrong. You did not post the make and model of the new one, the old one and possible the furnace and we need those in order to check your wiring and compatibility.

Oct 29, 2017 | Hunter Heating & Cooling

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All my other AC Units have had a drain directly to the sewer system...usually connected under a sink. Does my Ruud unit only have the drain to the outside of the house? Usually, when the AC is draining...


If you have a CENTRAL air unit, you should have an overflow to a drain in the furnace area. So I don't understand what you are saying about a connection to the drain under the sink!

Do you have the make and model correctly listed? Because with your question it does not agree what I know about the Ruud Central air that you listed.

Aug 08, 2011 | Ruud UBHC Air Conditioner

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How do you convert a remote thermostat to a directly wired digital thermostat to a vulcan powerhouse 100 central heater unit


First, you need to know how many millivolts the Thermopile (aka Pilot Generator) on the the furnace's pilot assembly millvolt terminal. Then you find a wired digital thermostat, that meets the same millivoltage that the Thermopile Generates or has a lower requirement. You have to run millivolt wiring from the furnace's pilot assembly millivolt terminal block (the wiring should be connect to the TH & the TPH terminals, to where you want to place the digital wall thermostat. In most cases, it can not be more that 15' away from the furnace. In other words, no more than 15' of wiring can be involved.

Hope this helped you. Please let me know. Thanks.

Jun 20, 2011 | Heating & Cooling

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I have a heating unit and trying to wire thermostat got 2 white wires, a red and a clear. where do they go


Hi, with just a heater and no air, the red would be the hot wire which goes to the R terminal on thermostat and clear which are normally white will go to W on the stat. If you have a heat only stat, it should have only the R and W connections. If a central heat and air stat, wire it the same, but you may need a third wire for the fan if it is forced air. You would be better off running down to the hardware store and getting a 24 volt heat only stat. I don't know what kind of heater you have, but make sure of the control voltage of the unit. Most gas, heat-pumps, gas & electric are 24 volts ac. Some heat only units are milivolts. Anyway, connect the 2 as I have said. Before you wire the 2 wires to the stat, touch the 2 together and watch to see if it fires up. It may have a delay, but should fire right up if the heater is working right. No danger of shock as this is very low voltage, nothing to worry about when testing. If it is a central type gas furnace, the voltage will be 24 volts. Please rate me on this as I know you will be kind. I chose not to charge you for my time on this thread. Keep me posted.
Sincerely,
Shastalaker7
A/C, & Heating Contractor

Oct 22, 2010 | Heating & Cooling

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From the Isolator panel, how do I connect the condenser, and the blower?


MOST UNITS NOT HEAT PUMPS  WIRE UP WITH 2 WIRES TO CONDENSER RED WIRE AND WHITE . WHITE GOES TO COMMON C ON FURNACE AND RED TO Y TERMINAL OF FURNACE Y ALSO GOES TO Y ON TSTAT. BOTH YELLOW WIRES MUST MEET AT Y OF FURNACE.  WHITE FROM STAT TO W   GREEN FROM TSTAT TO G AT FURNACE IF YOU HAVE C ON TSTAT HOOK UP BROWN WIRE OR BLUE FROM COMMON TERMINAL WHERE YOU HOOKED UP CONDENSER WHITE WIRE AT FURNACE TO TSTAT , MOST THERMOSTATS DONT NEED C RUN FROM FURNACE. THE TWO WIRES GOING TO CONDENSER IS -  AND + TO ACTAVATE CONTACTOR IN OUTSIDE UNIT

Apr 19, 2010 | Ruud Central System Air Conditioner

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Hello We have a Trane central air


Bad thermostat, improper wiring or bad circuit board in furnace. Turn off the disconnect outside.

Dec 30, 2009 | Heating & Cooling

1 Answer

Goodman GPM075-3 air conditioning connections


your thermostat powers 'Y' for cooling. That in your case blue wire connects to 'Y' on the control board in the furnace. Then a pair of low-voltage wires connects 'Y' and 'C' on the furnace to the two wires to the coil of the contactor in the a/c condensing unit. So to follow the path, the signal wire from the thermostat sends 24v down the Y wire to the furnace board Y terminal which also connects to one side of the contactor coil in the air conditioner. To complete the control circuit to the air conditioner there has to be a common wire. This is connecting the C wire from the furnace board to the other side of the contactor in the air conditioner. Hope this helps.

Dec 11, 2009 | Goodman Heating & Cooling

1 Answer

No heat after installing honeywell thermostat H8110U


hook up the blue wire in the furnace cabinet where the blower section and the other thermostat wires are connected to the furnace. the thermostat you have uses a common wire from the thermostat to the furnace and this needs to be hooked up in the furnace otherwise you will have the problem you are having.

Dec 07, 2009 | Honeywell Electronic Programmable...

1 Answer

The central air unit connected to this heater was not working. We called a repairman who after taking the thermostat off the wall and then hooking jumper cables to the wiring inside the heater unit found a...


Call that serviceman back!
he did not want to run new wire so; he left you one wire short and, thought you wouldn't notice to fix this yourself i've included the proper thermostat wiring diagram at:
http://www.toad.net/~jsmeenen/wiring.html

May 03, 2009 | York Furnace Draft Inducer Blower Fasco #...

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