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Question About Honeywell Thermostat rth221
wiring...

Have 3 wires coming from ac unit(y,g,bL). BL seems like the power wire. Was wired to red on old thermostat. Thermostat won't work with y to y, g to g, BL to red. Any suggestions..ac only

Asked by Mike on 09/09/2008 0  Answer

ManualsOnline posted an answer 16 years ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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