(800) 905-9506
Traditional water heaters use a storage tank to...
Answer
cm 67 is set on AUTO. Today sunday 20.00 h he asks for 7 degrees !
How did he lost his factory...
(More)
Problem for Honeywell Programmable Thermostat Heater
RTH6400 Honeywell - where does the blue wire go.
Best Solution
posted on Jun 28, 2009
it all depends how things are wired inside your furnace downstairs on a basic system blue is usually a common - C and yellow is for cool - Y just leave the jumper in from R & RC R is 24v power and RC is 24v power in Cool yuo will just have to squeeze the new wire in with it before you get to far i would open up the doors on you furnace and see where the connections are in there so you dont blow any fuses
Yes
No
Popular Solutions for Honeywell Programmable
Questions and Unsolved Problems for Honeywell Programmable
Do you recommend Honeywell Programmable Thermostat Heater?
Answer
Answer
our honeywell st6400c thermostat worked fine when installed but now will not run the central heating...
(More)
Answer
My control has been set to various on off times, but continues to stay on. It is switched to...
(More)
Answer
how to override pre setting for heat on my thermostat
Sponsored Links
Ask our Experts
Browse popular Problems
More Common Problems
Most Common Problems for:
For Honeywell Programmable...:
Related Products & Issues:
Top Heater Experts
Experience:
15 years field experience and
5 years navy training
Ask Me
Top Heater Repair
Best Heaters
Recommended by Owners
Recommended by Owners
