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Rth2510/Rth2410 series thermostat help me get out sleep mode furnace wont come on

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: furnace will not turn on in Auto mode thermostat

It sounds like you T-Stat is messed up. Look in your manual to see if there is set up instructions. If not I would change the T-Stat.

Posted on Jan 03, 2009


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I have a Honeywell Rth 111 series unit was running all the time so took the cover off and replaced the batteries but unit will not turn off help

So your saying the furnace will not shut off? If you take the thermostat off the sub-base will the furnace shut off? If the furnace does shut off with the thermostat disconnected from the sub-base then you have a bad thermostat

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check that the replaced thermostat is the same temp degree setting of the last one

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sounds like you have 24 v going to the g terminal check that otherwise the fan relay in the furnace is stuck closed or the thermostat is defective

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I'm tryingt to install RTH2410 honeywell thermostat for a central air/gas heat system. I accidentally discarded the old thermostat, because I thought the honeywell would be easier to install, but nothing...

Call 1-800-468-1502 for wiring assistance.
You probably have the wrong wire on the R terminal. Make sure that the wire on the thermostat R is the same wire that is on the furnace R terminal.

Oct 17, 2010 | Honeywell Heating & Cooling

1 Answer

I Have a honeywell RTH2410 Thermostat I wired it without the blue wire which used to go to X on my old thermostat. Now it comes on with aux heat all the time and I have a Heat Pump. How can I fix this?

What was the old thermostat labels and the wire colors that went to them?
The typical heatpump wiring Terminals are:
R = Red = Hot side of Transformer
C-B-X = Common side of transformer Depending on brand of heatpump
Y = Yellow = Cooling Contactor
G = Green = Furnace Blower
O = Orange Reversing Valve Energize to Cool
B = Blue Reversing Energise to Heat Depending on brand of heatpump.
W2 = White = Auxiliary Heat
You need to be sure where each wire comes from when you connect them to the new thermostat.
The best way to do that is to go to the furnace and see where they are connected. R-Y-G are probably correct, you need to see where the Blue wire comes from and determine what the X terminal was on the old thermostat.

Dec 29, 2009 | Honeywell Electronic Programmable...

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Honeywell T8011r does not have anything on display - does not appear circuit breaker is thrown - could it be wire disconnected at the plate or is there a fuse inside the unit?

Check to see if you have power at the furnace. You thermostat is powered by 24vac coming from the furnace. You should have power on the "R" terminal.

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Non-deletable schedule in VisionPRO TH8000

The thermostat has a function called "Adaptive Intelligent Recovery".

This feature allows the thermostat to learn how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set. For example: Set the Wake time to 6 am, and the temperature to 70°. The heat will come on before 6 am, so the temperature is 70° by the time you wake at 6.

You can turn off this function. Download the installation guide at the next link:
and look for funcion number 0530 Adaptive Intelligent Recovery. In this manual you also find the way to do a reset with the function number 0710.

I hope this solves your problem.

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you probably have a bad thermostat if it wont shut down id replace the thermostat first and then have the thermocoupler checked...replace the thermostat

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Try this link:

It looks like there are a variety of model numbers for the Chronotherm III. Hopefully you can locate your model number.

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