Installing Hunter Thermostat Model 44665 to replace 20 yrInstalling Hunter Thermostat Model 44665 to replace 20 yr old Maple Chase Thermostat for Heatpump in Arizona. Outdoor unit is Amana Model RHE24A2A and indoor unit is Amana Model BBC36A2A … read more
GregT716
Hvac
High School Graduate
73 satisfied customers
Trying to solve for same issue as above. Replacing stupidTrying to solve for same issue as above. Replacing stupid $700 Lennox Stat with new Honeywell WiFi unit and trying to figuring out the I- and I+ wires … read more
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,862 satisfied customers
I am trying to replace the thermostat I have but only redI am trying to replace the thermostat I have but only red and green match up. I have a white and blue wire but in the old thermostat they where in I- and I+ … read more
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,862 satisfied customers
How can I connect a 3rd generation Mest thermostat?How can I connect a 3rd generation Mest thermostat? Specifically, the wiring at the Nest and at the Heil unit? … read more
airheatman
Heating & Air Conditioning Contractor
6 years college
16,160 satisfied customers
Yea I'm trying to instal a nest thermostat, just pulled 18/5yea I'm trying to instal a nest thermostat, just pulled 18/5 wire, now looking at my furnace board I have a y/y2 but no connection for y1 I guess- trying to figure out if I connect to the y1 or y2 on … read more
airheatman
Heating & Air Conditioning Contractor
6 years college
16,160 satisfied customers
I have a Lennox 51M35 and I just noticed the thermostatHello. I have a Lennox 51M35 and I just noticed the thermostat won't turn on. I checked the breaker and that was fine. Do I need to get a new one? … read more
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,862 satisfied customers
I have a Trane 4TTR7 2 stage condensing unit with a Trane 2I have a Trane 4TTR7 2 stage condensing unit with a Trane 2 stage furnace system, but the 4 ton condensing unit can't cool down my 2nd floor effectively, it's not cold at all, It was installed 2 years… read more
airheatman
Heating & Air Conditioning Contractor
6 years college
16,160 satisfied customers
I am having trouble wiring a new thermostat.. From my furnaceI am having trouble wiring a new thermostat.. From my furnace to the thermostat I have the following wires/letters Y, W, H, G, C and my new thermostat has the following terminals 24V Common, 24RH, W1,… read more
airheatman
Heating & Air Conditioning Contractor
6 years college
16,160 satisfied customers
We are installing a new thermostat for the furnace. A HoneywellWe are installing a new thermostat for the furnace. A Honeywell Model # ***** We put in a new wire and it is a bit different from the old. The old wires were White, Green, Red, Blue with the blue wire… read more
warmneighbor
owner
Vocational, Technical or Trade Scho
162 satisfied customers
My lennox g61mpv-36c-090-06 is not working properly. The ACMy lennox g61mpv-36c-090-06 is not working properly. The AC wont come on when the thermostat is set to AC. I just put in a new blower motor. When I turn it on to AC, the blower starts in low mode, but… read more
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I am replacing a old merc honeywell,with a hunter 44260. heatI am replacing a old merc honeywell,with a hunter 44260. heat and cool.Neither the old letters nor the old wire colrs give me a hint on where to put the wires on the new thermostat.On my old therm let… read more
Richard
District Technical Manager
Vocational, Technical or Trade Scho
1,514 satisfied customers
I have a Trane XB80 with a 50A55-486 control. I replaced theI have a Trane XB80 with a 50A55-486 control. I replaced the old Honeywell T8401C thermostat with a new Filtrete 3M50 programmable thermostat but cannot get it to work.The connections for the old ther… read more
Heath Moyer
1,071 satisfied customers
Trying to install RTH7500D thermostat for my heat pump. ReplacingTrying to install RTH7500D thermostat for my heat pump. Replacing a Lennox thermostat about 15 years old. Conventional heat pump, single stage I believe. Wiring for Lennox thermostat is O - Orange, G … read more
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,490 satisfied customers
Hi - I am replacing my honeywell programmable thermostat andHi - I am replacing my honeywell programmable thermostat and a burned out Perfect Climate W900A module with a 4 wire manual honeywell thermostat. I need directions on how to wire in the basement. Ther… read more
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,862 satisfied customers
I am replacing a White Rodgers 1F76-357 thermostat with a TotalineI am replacing a White Rodgers 1F76-357 thermostat with a Totaline Signature P374-1700. The wiring for the White Rodgers used a "jumper" between RC and RH for the red wire. The yellow wire from the AC… read more
Rick Mather
HVAC Tech
Vocational, Technical or Trade Scho
3,631 satisfied customers
I am installing a NON-Lennox programmable Ac/Gas heat thermostatI am installing a NON-Lennox programmable Ac/Gas heat thermostat on a Lennox Ac 2 stage system. The wires in the current Lennox thermostat include a black wire. The replacement does not offer a black … read more
Matthew
Service tech
Bachelor's Degree
2,014 satisfied customers
i have the 1F85RF-270 thermostat that i bought on line. iti have the 1F85RF-270 thermostat that i bought on line. it is new. i want to replace the hunter model 44550, but i don' want to connect the wires wrong. i have 5 wires, white, red, orange, blue, and y… read more
Mark Henley
HVAC Controls DDC
3,216 satisfied customers
I am having trouble with wiring a Hunter 44668 thermostat toI am having trouble with wiring a Hunter 44668 thermostat to a Trane Heat Pump. My wire colors are green, white, yellow, blue, brown, red and connections are G,W/B,Y/O,RC,RC1,RH,Y1. Can you please hel… read more
Mark Henley
HVAC Controls DDC
3,216 satisfied customers
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