4 Wire Thermostat Wiring Diagram Heat Only. Take a photo of the wires. November 13 2020 1 margaret byrd.
Each component ought to be placed and linked to other parts in particular way. 4 wire thermostat wiring diagram heat only source. The old thermostat has 4 wires see photos whilst the ones on the market now seem to have two wires generally.
W white wire y blue wire r red wire g green wire y wire jumpered to a contact labeled 1.
You can also label where each one goes but taking a photo is much easier. 4 wire thermostat wiring diagram youll need an extensive expert and easy to understand wiring diagram. It shows actual uses for most commonly seen wire colors in. Otherwise the arrangement wont work as it ought to be.