20 Most Recent Honeywell L4064B2236 Fan/Limit Control Heater - Page 6 Questions & Answers

And if what jumptrout51 said does not work, remove the thermostat to expose the wiring and place a jumper between (R) and (Y).

Honeywell... | Answered on May 27, 2019

It seems like since it's battery operated, you can still use the three wires only. R, G, and Y, and set thermostat jumpers or program accordingly.
The batteries will operate relays, LCD screen, but if I'm wrong, then the C terminal would need to be used both at the unit and thermostat to power the thermostat with 24 volts, not likely, just use one of the spare wires you mentioned or preferably the black wire.

Honeywell... | Answered on May 16, 2019

Use the r and w points for heat only. If it is a digital thermostat without a battery you may need to put a resistor between the w and c on the furnace to allow the thermostat to work properly. Your manual should tell you what value resistor.

Honeywell... | Answered on May 13, 2019

You may need to set the thermostat to energize or de-energize the reversing valve. Essentially you possibly have it in heat mode. Or you wired it to energize emergency heat strips.

Honeywell... | Answered on May 13, 2019

You most likely setup the thermostat for something besides heat pump function. What is the model number for the Honeywell thermostat and Coleman unit?

Honeywell... | Answered on May 02, 2019

What is model of the Thermostat

2-fywiog52uc2ssdn5xk2mhim4-2-2.jpg Did you check the Circuit Breakers to make certain you have not simply tripped a breaker?

In general, depending on where you live: If you will need Heat select Heat then set the desired Temperature
If you will need Cooling select Cool and then set the desired Temperature.
Fan should be set on Auto.

Honeywell... | Answered on Apr 28, 2019

I already worked it out. The door has a spring clip near the top, which is not visible. You pull the door toward the top and give it a hard yank toward you. It pulls past the spring clip and opens.

Honeywell... | Answered on Apr 11, 2019

press button below where it says unlock.
Enter code...1234
press up/down button until you get 1
then press select.
repeat until you get 1234 on screen
then press select, should unlock it.

Honeywell... | Answered on Apr 11, 2019

What does 2 flashes mean ?.
Maybe the controller is bad

Honeywell... | Answered on Apr 06, 2019

Where was the jumper on the old thermostat .Was it from R to Rc

Honeywell... | Answered on Apr 06, 2019


Honeywell... | Answered on Mar 31, 2019

possible high pressure cut out, low pressure switch, thermal overload, no fan...

Honeywell... | Answered on Mar 26, 2019

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