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Do you jumper W and Y terminals on the new thermostat if the
Do you jumper W and Y terminals on the new thermostat if the old thermostat had them jumped and connected to a Y wire? I am installing a Honeywell CT87N on a heat pump to take the place of a very old … read more
OzeyS
OzeyS
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I am replacing a Robertshaw thermostat with a Honeywell and
I am replacing a Robertshaw thermostat with a Honeywell and the wiring schemes don't match … read more
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HishamA1119
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Bachelor's Degree
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Thermostat keeps powering off. Then the thermostat send
Thermostat keeps powering off. Then the thermostat send power to turn on ac, the thermostat turns off and reboots. Then nothing happens. … read more
The-HVAC-Guy
The-HVAC-Guy
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Vocational, Technical or Trade School
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Currently i have a 44155C indiglo thermostat with G, rC RH
currently i have a 44155C indiglo thermostat with G, rC RH (jumper) , Y/O W/B hookup and i just got a new furnace with C. G, … read more
Michael Ferryman
Michael Ferryman
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I have a two zone HVAC system (one heat pump), and I want to
I have a two zone HVAC system (one heat pump), and I want to install a smart thermostat. Downstairs wires C,W2,R,G,Y,O/B … read more
HvacmanSean
HvacmanSean
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This is for upgrading my 2 zone thermostats to new honeywell
This is for upgrading my 2 zone thermostats to new honeywell RTH9580wf. The current wires are RH,R,G,W,Y. I do not have a "C" wire which would be used to power the unit on. First I was told to move th… read more
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Nathan Marshall, MP
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Vocational, Technical or Trade School
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Im trying to replace my old white-rodgers model 7904 thermostat
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gotoman for ac
gotoman for ac
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i installed new tstat connected red to rh/rc -y to y--w to
i installed new tstat connected red to rh/rc -y to y--w to w-g to g -fan switch works-buy cool& heat dont--i reinstalled old tstat it works,i changed cause micro switch loose… read more
spivco
spivco
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I have a Bryant 574A gas pack to which I want to wire a Honeywell
I have a Bryant 574A gas pack to which I want to wire a Honeywell RTH6350 thermostat. I have a Brown wire for RC, Red for RH, White, Green and Yellow coming from the unit. The Bryant manual suggests t… read more
Jerry M.
Jerry M.
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have new pro 5000 thermostat Y2 W2 G W C Y R Rc on top L E
have new pro 5000 thermostat Y2 W2 G W C Y R Rc on top L E aux G o/b C Y R Rc bottom I need to know how to wire correctly to my Goodman thermostate was 5 wire I have 18/8 wire it has R G O Br W no wir… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
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I have a 5000 Model Braeburn Thermostat for install. My current
I have a 5000 Model Braeburn Thermostat for install. My current thremostat has four wires connected R,Y,W,G and four wires [BLack, Blue, Brown and Gold or Tan] that are dead ended and not connected. T… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
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I have a Robertshaw 9520 Thermostat that I am replacing with
I have a Robertshaw 9520 Thermostat that I am replacing with a Honeywell - The problem is that I have 7 wires in the Robertshaw but only 5 places to insert in the Honeywell. Robertshaw Honeywell C- bl… read more
BillyHvac
BillyHvac
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We currently have a Honeywell T841A1746 Heating-Cooling Heat
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DanielC
DanielC
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I just bought a Honeywell 7-day programmable thermostat MDL
I just bought a Honeywell 7-day programmable thermostat MDL RTH7600. My old thermostat has an "A" wire but there is no matching wire in the new one. What do I do?… read more
Mark Henley
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I need a wiring diagram for a robertshaw thermostat. I am
I need a wiring diagram for a robertshaw thermostat. I am reinstalling it and I can't get the auto fan to work. It will only work in the fan on position only... what did I do wrong??… read more
Rick Mather
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I am attemping to install a new thermostat however the wiring
I am attemping to install a new thermostat however the wiring colors dont match up the same. is there a guide… read more
coolman1973
coolman1973
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I am trying to change my daughters old thermostat for a more
I am trying to change my daughter's old thermostat for a more simple hunter thermostat. The old one has a G, Y, Y1, and R w/ and B(lue) wire snubbed off. the wires connected to these are Green/White/Y… read more
coolman1973
coolman1973
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Hello, I am installing a Honeywell Focuspro TH6100 on a 2 line,
Hello, I am installing a Honeywell Focuspro TH6100 on a 2 line, apartment baseboard hot water system, replacing the old "yo-yo". I am a but confused about the wiring and the many teminal choices. Both… read more
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coolman1973
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