Where is the thermometer on the thermostat in my home?
Monday, February 8th, 2010 at
5:25 am
My thermostat is not shutting off when it should. Do these things quit working properly after 5 years and is it fixable?
Filed under: Wind Power
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the thermometer is under the cover.Sometimes they do ot work properly because they are not level.if you take the cover off you will see the mecury and a line above or below.if you get a torpedo level to see if it is level this might be allthe adjustment you need.if you purchase a new one you will need the torpedo level to connect the new one.there are 2 wires in there and it doesnt matter which wire goes to each terminal.its basically a switch and both leads are positive.
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The thermometer is right there on the thermostat.
Yes they do quit working and no they cannot be fixed.
You can take the cover off (they just pull off) and blow out some dust and dirt, which could be causing the problem, but other wise, just buy a new one. they are not they expensive.
You’re lacking enough information to make any kind of a diagnosis beyond a guess.
There are bi-metal type thermostats, and there are mercury bulb type thermostats, generally all thermostats have a heat anticipator adjustment. There has to be some adjustable lag time between when the heat / AC turn on and off. For instance if you had your thermostats set at 70, anytime the temperature changed one degree the unit would turn on attempting to keep the room at exactly 70 degrees without a heat anticipator. The heat anticipator allows a several degree lag between when the unit turns on and off.
So in essence when the T-stat is set at 70, the room is never at exactly 70 degrees, it rather fluctuates within a temperature window of perhaps as much as 5 or 6 degrees. The heat anticipator allows the unit to run for longer periods of time rather than just turning on and off continuously when the temperature changes one degree.
I get this call quite often form elderly people that have nothing better to do than just set and watch the thermometer. They call to complain that the temperature is not exactly where they have the thermostat set.
Provide a little more information, has it done this all the time, or what made you notice the issue? How much of a temperature fluctuation do you have? Just give some more information in general.
If you have AC you will have more than just two wires and you can’t just hook them up willy-nilly, so don’t mess with the wires unless you know exactly where they go.
The thermometer is in the thermostat. Older ones need to be level to work. Also, the fan may run when the A/C is not on, some new units will run the fan for 30 seconds or so after is has shut off, and this works with heating, too evan more common. If there is a hall light near the thermostat, it won’t work right. If you do replace it, make sure you get one that matches your A/C heate (number of stages, gas or electric heat, heat pump etc.)