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I have a johnson and starlet warm air heating system. the thermostat in the front room will only turn the heating on when on number 8. i have been told its just 2 wires that need to be changed, is that correct or will i need to replace the whole theromstat?

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The 2- wire thermostat shoud cost no more than $20.00 at Lowes--or Home Depo !

Posted on Sep 09, 2008

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Have a honeywell thermo 7 day .how to change for centerage to farenheight


1. Turn system off.

2. Simultaneously press up & down arrows for 3 seconds.

3. You will then see a display with a large number to the left and a small number to the right.

4. You should then see a large #1 and a small #1.

5. You want to change that 1(Celsius) to a 0(Fahrenheit).

6. Do that by pressing up or down arrow.

7. Once you've changed that small 1 to a 0 you then press both the up and down buttons for 1 second about three more times to take thermostat back to original screen.

8. Now you should see your room temperature reading in Fahrenheit.

Nov 02, 2014 | Honeywell TH2110D1009 PRO 2000...

1 Answer

My furnace works on ac and blows on ac but on heat it does not blow but i hear a humming sound coming from the furnace


Most furnace operating on Oil or gas will heat the combustion chamber before starting fan to prevent cold air draft at start-up, can last a minute or two. Eiter the main flame does not come on or the chamber thermostat have fail. Try to modify fan option on room thermostat from auto to on. Cold air coming out: burner problem or no more oil or gas, warm air: burning chamber thermostat problem, leave room thermostat fan option to on until repair.

Jan 02, 2014 | Comfortmaker Air Conditioners

1 Answer

Aux keeps coming on on regular heat is there something wrong with heat


See if it happens only when your temperature of the room is more than 3 degrees of your setpoint temperature. Since you have a heat pump, the auxiliary (electric heat strips) is use for backup of the heat pump when it can't keep up. The heat pump will run by itself if it can maintain temperature within a couple degrees. If it is too cold outside to handle the load or you set the temperature more than 2 degrees past room temperature, the auxiliary will turn on. The thermostat has a memory of how long it takes to reach desired temperature. If it goes into auxiliary mode trying to satisfy setpoint during the last call for heat, it will start the next call for heat in both aux & heat pump mode until the thermostats algorithm (timed program) allows only the heat pump to run. Not sure if you have an air to air, or geothermal heat pump. The outside air temperature will affect only the air to air system ie. when the temps drop outside, the heat coming out of your vents will be cooler...the air to air systems drops efficiency when the outdoor air drops.

Nov 08, 2013 | Honeywell TH3210D1004 PRO 3000...

1 Answer

I just put in this new thermostat, I believe all the wiring to be correct i have one extra wire (brown) that should be a common wire used to keep the display lit. when I turn the unit on cool ( with the...


Heat pumps require specific heat pump thermostat. If you are trying to install a thermostat that is generic forget it. A heat pump is a diff animal than a central unit. Get the thermostat that matches your system. A generic won't cut it.

Aug 13, 2011 | Air Conditioners

1 Answer

Im in a room where there are two thermostats, one for heat and one for cool, but i still cant get it warm in my room, how to i get it warm?


In a room normally only one thermostat near return air. So your statement confusing me. Please write in details with model of your a/c. and thermostat.

Dec 13, 2010 | Honeywell Air Conditioners

1 Answer

Cool air comes out when the heat turns on. When I switch to Em heat, warm air comes out. Over the summer the air worker great, however when I switched to heat on the thermostat, cool air came out. Why?


Check the following. 1. Your setting temp must be higher +3 than room temp. 2. Check heating sensor.3. And also heater element.(If it's reversal valve, checke RV is working)

Dec 12, 2010 | Weather King 10AJA3601AH Air Conditioner

1 Answer

230/208 Volt Built-In Room Air Heat/Cool Unit blows cold air, not heat. Unsure if it may be thermostat, if so.. where is it? Another one blew fuse. Where is it located?


To locate the fuse;

1. Turn the power off or unplug the Room Air Heat/Cool unit.
2.Follow the power cord of the unit. This will normally
terminate at the fuse terminal/power reset button., where you can replace the fuse.
3. After the fuse/power reset button terminal the wire
go to a thermostat normally located at the air output
section at the front portion before it goes to the motor
and heating element, while the other wire may connect direct from the fuse terminal to the motor or
heating element.
This is just the basic electrical set up, it can be modi-
fied. Hope this will guide you in locating the fuse and
the thermostat.
fied

Jan 06, 2010 | GE Built-In Room Air Heat Cool Air...

1 Answer

Improper Termperature Readings during AC run


personally i'd just replace the thermostat, but try pulling the front panel off and look on the circuit board and see if there is a jumper for F/C or any other settings. you may try changing its position. you can also remove the batteries for 15 minutes and see if it resets itself. the only other thing it could be is a wiring issue.

May 29, 2009 | Air Conditioners

2 Answers

I have a vitodens 100-w combi boiler and tried to turn the heating on just to give it a working as was advised. However, I have no heat coming to my radiators. The boilers seems to be working as my hot...


Here's the deal: If your Vitodens 100 has outdoor temperature sensing capability, either built in or via external aftermarket control such as Tekmar or other, and the temperature outside is above warm weather shut down (WWSD), then the boiler will not operate for space heating, but will operate to make Domestic Hot Water (DHW) only. Generally speaking WWSD is facoty set at 20*C, since this is normal room temperature so the boiler will not need to operate at temperatures above this number as it is warm enough outdoors to heat the house to comfortable levels.
If your Vitodens 100 does not have outdoor temperature sensing capability then you should check to see if your room thermostats are operational and calling for heat since the boiler is only responding to this on-off control based on room temperature. (turn up your room thermostats)
In both cases you need to make sure that your heating system's distribution pump and zone valves are operating correctly.
In any case you should be calling a heating contractor if you suspect that there is a problem with your boiler and/or heating system.
Good luck.

Aug 07, 2008 | Air Conditioners

1 Answer

Non-cooling


- Calibrate your electronic thermostat if it is accurate. If not then replacement is needed.
- Check the location of your electronic thermostat, it may be installed in the room where its too cold.

Feb 29, 2008 | Carrier 36KCARMS Air Conditioner

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