Questions & Answers for: Honeywell 24v common

common terminal on furnace. Seems right. Everything worked at first, then the solenoid smoked a little and the humidifier stopped. Any insight? Sounds like you may have put 120v through a 24v solenoid

...eneroyal furace that has honeywell controls it has a 24v transformer and relay set up with this lettering configuration on it C R Y G W C--=common r-red=power y-yellow=cool g-green=fan

wire in? Thermostat wiring depends on which thermostat you are using. The blue wire is typically used for the 24v common. The red is your 24v power. If you have one transformer you will jump RC and RH

...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 ...

...24v cool take your red wire hook it to Rh and make a jumper to Rc Rh & RC - R C should go to a common if you want to power the tsta without batteries check the installation instructions to see if ...

24v goes to r terminal, yellow is for ac and goes to y terminal green is for the blower motor and goes to green terminal, blue can be a common or 2nd stage heat or 2nd stage cool or humidifier is blue

...24v? Honeywell R8285D1026 hi welcome to fixya, The"r" on subase is hot all time. The queston is do you have a common. Some t-stats dont have a common spot, The only thing you need is a earth ground. ...

...the Common terminals. They have to have the common from the furnace 24v power to operate. 3. Faulty thermostat, which will obviously have to be replaced. Hope this helps and gets you to cooler

...common should land on the relay coil. Your high voltage for the blower lands on normally open. Sounds like you are using your red (constant 24v) to energize your relay. Therefore your relay is ...

...causes the fuse to blow for 24v on the st9120u1101 Blows the fuse as soon as unit is energized There is a short in the thermostat wire. Most common would be near the outdoor unit touching the