AC blower will not stop running.......?

Question

Changed the t-stat,fan relay and it still continually runs. I just ohmed out the heater relays(3) where the flame is on during the winter months and the results were this. .2,.2, and11.1.Could it be that this one relay is the cause. The condensing unit is cycling on & off at desired temp. Thats ok. But it seems the blower is running at a slower speed also;as if the unit is calling for heat.I'm still at my witts end . Can someone please help. I don't have the funds right now to call a tech. The model # is RCBA3765GG17 Rheem

Answer 1

I don't have your wiring diagram but if I had a "blower running constantly"call,the first thing that I would do is remove the panel, study the wiring diagram, and narrow the possiblities down to two things.Just take your time.You are making it harder than it really is.Meditate on that diagram and you'll figure it out.

Answer 2

Have you checked to see if the fan switch is set to the AUTO position and not to the ON position?  If that is not the problem try removing the G wire on the thermostat.  If the fan turns off you have a problem with the thermostat.  The W wire controls the outside compressor along with the G wire for the inside blower.  The fan control switch just applys voltage to the G wire to keep the inside fan running.   Hope this helps.  Good Luck!

Answer 3

it might be the thermostat. They have setting depending on the system you have read the instructions for the thermo.