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I have a honeywell t8601 and the heat won't come on I've
HI There I have a honeywell t8601 and the heat won't come on I've just replaced the batteries and done all of the date settings etc, but can't get it to work...please help!! … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,027 satisfied customers
While I was in hospital my brother in law replaced our
While I was in hospital my brother in law replaced our thermostat, A/C worked fine but when we turned to heat nothing. the wire is a 6 wire set-up.he is color blind,hoe can I be sure it is wired corre… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
We have a Gibson Central Air unit: GB5BM-T25K-A-10. After
We have a Gibson Central Air unit: GB5BM-T25K-A-10. After not having it on all winter, I turned it on and nothing happened. I noticed the battery light flashing in the thermostat and so I replaced the… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
We have a lennox model g40uh-48b-090x-11. The recirculating
Hello, We have a lennox model g40uh-48b-090x-11. The recirculating fan keeps going on even when the thermostat is not set to heat, cool or fan. When we have the heat setting on and the house reaches t… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
If I lift the top of my home thermostat the #starts with
If I lift the top of my home thermostat the #starts with 960. It has H/C on top left, fan on left. Up/down arrows on right. The bottom 4 buttons from left to right are Prog. - TimeTemp- Day- HoldEnd. … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,369 satisfied customers
My upstairs and downstairs systems were working fine. the
hi. my upstairs and downstairs systems were working fine. the batterieson both systems died andI replaced them.nowi cant get anything , ac,heat,or even fan toturn on,but the thermostat units themselve… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,027 satisfied customers
A/C was working fine. Changed thermostat and now there are
A/C was working fine. Changed thermostat and now there are no lights on the unit in the garage. Wall outlet still works.… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
I installed a new Honeywell RTH7600 this past winter and it
I installed a new Honeywell RTH7600 this past winter and it worked fine for heating. Now that I need the A/C the compressor does not kick on; only the fan on furnace. I have 4 colored wires - red, gre… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,029 satisfied customers
My a/c was working fine when I left work yesterday. Today my
My a/c was working fine when I left work yesterday. Today my Lennox thermostat (P)X4147 S/N 4405J00920 doesn't show anything on its face. I have replaced all thee AAA batteries with fresh ones. Help?… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
Hello Billy, I am helping my son install a wifi Honeywell
Hello Billy, I am helping my son install a wifi Honeywell thermostat, RTH9580WF. He has a Lennox AC unit in the attic model number CB29M-51-1P. Here's the situation: The fine folks who built his house… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
Hi Phil - I have an old Trane HVAC unit at my house and it
Hi Phil - I have an old Trane HVAC unit at my house and it is beeping at a regular 1 minute interval. The battery light on the unit is not flashing (batteries were changed 2-3 months ago) and when I r… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
Hi. Im hoping someone can help me. Please pardon my lack
Hi. I'm hoping someone can help me. Please pardon my lack of knowledge with our heating system. Here's what I know: We have two zones of heat. We have an old school thermostat in our in-law suite, whi… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
Hi- just replaced batteries in my Honeywell thermostat th5110d1006
Hi- just replaced batteries in my Honeywell thermostat th5110d1006 model. Unfortunately, I pulled unit off of the wall not realizing you can remove battery compartment separately. I easily snapped the… read more
Heath Moyer
Heath Moyer
1,057 satisfied customers
My Trane TCONT80011AAA seems to be malfunctioning It was working
My Trane TCONT80011AAA seems to be malfunctioning? It was working fine and we went away for 3 weeks and upon return it was fine. I turned it off for a few days of nice weather and when trying to have … read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
I have a fairly new system with 2 thermostats, 2 gas furnaces,
I have a fairly new system with 2 thermostats, 2 gas furnaces, & 2 a/c units. The other day I turned on (manually) the fan, at the thermostat, that services the exsisting area of my home just to circu… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
Air conditioning doesnt turn on. Circuit breakers are all
Air conditioning doesn't turn on. Circuit breakers are all one, etc. Low battery indicator on the controller, but I have cleaned the contacts and replaced the AAA batteries. The controller is a Lennox… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
I have a Honeywell Chronotherm IV Plus thermostat and the displays
I have a Honeywell Chronotherm IV Plus thermostat and the displays is completely blank. I had an AC technician come out yesterday and the unit and the thermostat was working fine. It has been cutting … read more
Francis
Francis
shop owner
Bachelor's Degree
1,974 satisfied customers
When i pulled my honeywell thermostst t8001c off the wall to
When i pulled my honeywell thermostst t8001c off the wall to find the model number and tried to put it back on the mount, the thermostat would not turn on. SO i figured i must have broke something and… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
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Meet the Experts:

Phil

Phil

Mechanical Engineer

7,634 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,029 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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