Honeywell Rth230b Wiring Diagram. Wiring diagrams contains all the essential wiring diagrams across our range of heating controls. Honeywell thermostat rth2300b wiring diagram hook up the blue wire in the furnace cabinet where the blower section and the other thermostat wires are connected to the furnace.
W aux not used m32714 remove metal jumper. Wiring diagram images detail. I dont know what kind of system you have but if its a gas furnace.
Loosen the terminal screws using a screwdriver insert the wires then tighten.
Call 1 800 468 1502 for wiring assistance. If your furnace is running it may shut off though and i would shut it off before pulling the thermostat off the mounting plate. Honeywell rth2300 rth221 wiring diagram how to install honeywell thermostat with ly 2 wires unique honeywell thermostat heat pump wiring 4. We are here to help.