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We have a totaline P374-1800 model thermostat. THE FAN comes
hi... we have a totaline P374-1800 model thermostat. THE FAN comes on ... On the hour...with hot air...I presume from the attic. We live in Phoenix. This is not a good thing. Can't see in the manual h… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,390 satisfied customers
My Totaline p374-1800 Premier residential thermostat lost
My Totaline p374-1800 Premier residential thermostat lost its backlighting a couple of months ago and now the mode button does not work. … read more
airheatman
airheatman
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Had a power outage and the Totaline P374-1800 thermostat
Had a power outage and the Totaline P374-1800 thermostat blank. Have checked A/C breaker. Was in on position, threw it off and back on - still blank thermostat. Removed face of thermostat - no batteri… read more
BillyHvac
BillyHvac
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Totaline P374-1800 is not functioning and is 11 yrs old. i
Totaline P374-1800 is not functioning and is 11 yrs old. i have pushed the mode button but there is no response and the information field is off. your thoughts? … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
8,427 satisfied customers
Question about my totaling signature P374 1800. The screen
Question about my totaling signature P374 1800. The screen is completely blank. No combination of pushing buttons or trying to make it come to life works. It's about 10 or 11 years old. Thoughts? … read more
airheatman
airheatman
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I have the Totaline FlatStat P374-1100FM and one of the
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Phil
Phil
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I came home from being away week to find my thermostat
I came home from being away for two week to find my thermostat dead. I have a Totaline P … read more
airheatman
airheatman
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re Totaline P374-1800 - No backlight. Used to be there but
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airheatman
airheatman
Heating & Air Conditioning Contractor
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i have a residential EasyStat thermostat. I came home from
i have a residential EasyStat thermostat. I came home from work and the air conditioner is on but the digital readout is blank and it does not respond to any up/down on off buttons… read more
airheatman
airheatman
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I have a Totaline SIgnature P374-1700 approximately 5 yers
I have a Totaline SIgnature P374-1700 approximately 5 yers old The display screen has gone out and I cannot remove the unit fromt he wall or even knowf it is a battery replacement issue How do I fix t… read more
Mike
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we have the totaline one day programmable thermostat. Earlier
we have the totaline one day programmable thermostat. Earlier today I turned on the air conditioning. Later when I went to go turn it off, there is nothing appearing on the display screen. No numbers,… read more
hvacdave84
hvacdave84
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How to get an owners manual for totaline P 0441 thermostat
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Comfort Specialist
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I have a Totaline thermostat. I need to change the
Hi there........ I have a Totaline thermostat. I need to change the batteries. First it read LB, now I have not heat at all. Can you please help me. I have not instructions. thank you… read more
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My downstairs heater isnt working. I noticed it was cold downstairs
My downstairs heater isn't working. I noticed it was cold downstairs and went to look at the thermostat. it said "Low batery" I replaced the two AAA batteries with fresh batteries. the heat furnace wi… read more
M Oglesby
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Hi there. My air conditioner went out this morning. I noticed
Hi there. My air conditioner went out this morning. I noticed that the thermostat (Totaline p374-0300) was not lit up. I went to Home Depot and the man told me I needed the Honeywell RTH3100C Thermost… read more
BillyHvac
BillyHvac
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State Licensed Mechanical Contractor
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My Lennox programmable thermostat has the battery light blinking.
My Lennox programmable thermostat has the "battery" light blinking. I cannot get the face off to get to a battery, and it was installed by a prior owner so we don't have the manual. It's working fine … read more
BillyHvac
BillyHvac
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I purchased a TH5000 series recently and am annoyed by the
I purchased a TH5000 series recently and am annoyed by the clicking during on/off. Do you have any similar models that I could replace it with which do not click???… read more
Regan Land
Regan Land
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I have 2 totaline PV110 (PN P374-1100)stats in my home.Our
I have 2 totaline PV110 (PN P374-1100)stats in my home.Our power went off last night for 8 hours (AZ it was not too bad) and when it was restored one of the stats display was blank and fan was running… read more
BillyHvac
BillyHvac
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14,390 satisfied customers
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Phil

Phil

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A-1 Tech

A-1 Tech

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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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