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2

That is definitely what you're looking for. To be safe,trace the wires as far as you can to make sure they're not connected to anything else too. That's a strange location for one, mounted on a box to a furnace. Determine if the switch controls the transformer, that would be strange too. Make sure it's not feeding your thermostat.


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I believe that this document is for your unit and it indicates a 3amp fuse. Refer page 29, the trouble shooting section, top row, 5th column


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Your AC compressor needs two wires - Y and C. Y comes from the thermostat and C comes from the air handler or the common side of the 24vac transformer. The picture you have with the mid-line wire splice is where the three conductor wire (green white, red) branches off and goes outside to the compressor. Since Y is the standard for "compressor, someone ...


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The problem I see is that your 24vac transformer isn't really doing anything in your system. It might be there for an accessory that you don't have, but it's not hooked up. If it was doing anything, there would be a wire connected to the R and C terminals, and that is not the case. Use a multimeter to measure between the R and C terminals to see if it is ...


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Yeah, could be the capacitor. A good quality multimeter with the ability to test capacitance can check it for you. Discharge the cap, and remove it for testing (be sure your furnace is off). Then, set your multimeter to the F/uF setting and test it. The cap should show the cap rating in micro Farads (uF) and a +/- percentage. The reading should be ...


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So, I have an original(?) Honeywell controller. It has two T terminals, and two F terminals: The T's go to the thermostat... one provides constant 25v (or higher, mine is 30v), the other is the return to complete the circuit. The constant 25v ties directly to one terminal on the low voltage side of the transformer inside the controler, the return ties ...


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