Gas Furnace Fan Relay Wiring Diagram

I bought the 24v transformer and the relay. Richard lloyd 2 544 649 views. A wiring diagram is a streamlined traditional photographic depiction of an electric circuit.

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Gas furnace fan relay wiring diagram. The thermostat and furnace is for heat only so i wired a 7 conductor cable more than enough to it. After getting my furnace blower motor replaced it now runs only in the following scenarios. Cooling blower figure 10. I know i have to create and power a common wire.

Gas furnace control board wiring diagram just what s wiring diagram. The relay mounting brackets and screws are found with the relay box. Standard ac with standard furnace control wiring standard furnace standard thermostat standard a c condenser 1st stage heat white 24 volt fan only operation common air conditioning ac contactor control board 1 this diagram is to be used as reference for the low voltage control wiring of your heating and ac system. Mode cool fan auto 2.

Mode cool fan on 3. Collection of furnace fan relay wiring diagram. A wiring diagram is a type of schematic which makes use of abstract pictorial symbols to reveal all the interconnections of parts in a system. Install the upper relay mounting bracket to the blower and the lower relay mounting bracket to the furnace casing see figure 2.

A wiring diagram is a streamlined conventional pictorial depiction of an electrical circuit. Variety of electric furnace fan relay wiring diagram. I show you the voltage flow from the door switch through the fan limit and to the fan control which includes the general purpose relay and back out to power the blower motor. Ac fan compressor not working how to test repair broken hvac run start capacitor air condition hd duration.

Gas furnace wiring diagram pdf unique rheem fan relay wiring diagram a beginner s guide to circuit diagrams a first appearance at a circuit layout could be complicated but if you could check out a train map you can read schematics. Mode heat fan on in other words it will not run when in heat mode with fan auto. I m adding a modern thermostat to my home s furnace currently has mercury tstat. I believe it could have something to do with the way the motor is wired.

Do not completely tighten the screws at this time. System wiring schematic using 5 wire thermostats 3. It reveals the elements of the circuit as simplified shapes and also the power and signal connections in between the devices.