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The thermostat went blank. I replaced the batteries and
The thermostat went blank. I replaced the batteries and cover. The screen is still blank. What do I do? … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I have a 1 yrold trane system. the thermostats are blank- no
I have a 1 yrold trane system. the thermostats are blank- no power, I checked fuses at fuse box, nothing there. Central air. outside temp is 106 we are in phoenix az. Any suggestins? … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
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Our AC is not cooling down the house. We have been having it
Our AC is not cooling down the house. We have been having it run all day and it does not seem to be working properly … read more
airheatman
airheatman
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I have a Trane system and I am experiencing a problem again
I have a Trane system and I am experiencing a problem again that I experienced about a month ago. Then the outside temp was in the teens. it is 38F today. My heating has stopped (electric not gas). My… read more
airheatman
airheatman
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I have a new Lennox HVAC system, not heating and giving me 2
I have a new Lennox HVAC system, not heating and giving me 2 different error codes. Started with 276, now 271. Dealer who installed it..... unfortunately...... does not seem to have an after hours ser… read more
Phil
Phil
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Degree, Mech Engr Technology
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Lennox I Comfort system thermostat blank. I believe it's the
yes I will troubleshoot it. Have already turned the power off and back on. Checked the fuse on the board in the air handler. Error code on board is E124 … read more
BillyHvac
BillyHvac
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State Licensed Mechanical Contractor
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My upstairs a/c stopped working. The fan is not turning at
My upstairs a/c stopped working. The fan is not turning at all. I recycled the circuit breaker with no luck. I went out to the unit looking for the fuses but didn't see anything in the wall box. Just … read more
Appliance Guru
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My lennox air conditioner won't turn on. The electronic
My lennox air conditioner won't turn on. The electronic thermostat has power, is set to cool, temp is set below air temp. Seems like no power is getting to unit … read more
Appliance Guru
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Goodman model ASZ140421AG, The thermostat is set to turn on
The thermostat is set to turn on the heat at 74 but the house is 69 and nothing is happening … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
The thermostat just went blank & remained a week. I replaced
The thermostat just went blank & remained for over a week. I replaced the batteries and face plate is working, but the HVAC and air conditioning will not come on. Inside temp is 81 but I can not get t… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
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When i was replacing filter on my heating pump the unit now
When i was replacing filter on my heating pump the unit now will not start … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
turned my lennox G23 series furnace on it fired up started
turned my lennox G23 series furnace on it fired up started heating for about 20 min. then the flame went out fan started blowing cold air and my digital thermostat went blank… read more
airheatman
airheatman
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6 years college
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We have a Lennox Merit series central A/C & heating system,
We have a Lennox Merit series central A/C & heating system, installed 8 years ago. Original thermostat not working. Purchased replacement Model (Honeywell) RTH111... connected all wires and nothing is… read more
gotoman for ac
gotoman for ac
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My Carrier Infinity Thermostat shows a blank light screen
My Carrier Infinity Thermostat shows a blank light screen. What might the problem(s) be? I tried to reset with the Left button but there was no change.… read more
Tim H.
Tim H.
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Vocational, Technical or Trade Scho
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HVAC Issue - No Power to System Last night I went to replace
HVAC Issue - No Power to System? Last night I went to replace my existing programmable thermostat, which was working but wasn't accurately reading the room temperature, with a new one. I turned off th… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
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My Lennox G1204/5X forced air unit will not come on after I
My Lennox G1204/5X forced air unit will not come on after I changed the filter. I have checked to see that the access doors are fully closed and seated. I have removed the door and held the cut out sw… read more
TimVZ26
TimVZ26
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I have a Lennox HSXB15 AC unit and it does not turn on even
I have a Lennox HSXB15 AC unit and it does not turn on even though I have the thermostat set at 76 and the room temperature is 80. The furnace motor is running. Is ther some basic troubleshooting I ca… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
I lost power to our home and when the power came back on the
I lost power to our home and when the power came back on the digital thermostat is dead. No power. Is there a reset or something I need to check? I checked all my breakers and reset the one for the fu… read more
Glenn
Glenn
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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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