ruud upmc high pressure trouble

______________________________________________________________________ I have a ruud upmc-036jaz out door heat pump unit that trips the high pressure switch art a few min. in heat mode. Cleaned inside and outside coils, Freon is ok, no problem in A/c mode. Any ideas? I’m Continue reading ruud upmc high pressure trouble

Rheem thermostat replacement

______________________________________________________________________ Hi, I’m trying to replace an old (20 years) Rheem thermostat with a Honeywell RTH7400D thermostat. Since the Rheem powers up the heat pump and electric furnace (and after reading the Honeywell manual), I figure this is a multistage Continue reading Rheem thermostat replacement

how long/cost to change an outdoor unit?

______________________________________________________________________ The house I bought has a mismatched heat pump, 2 ton outside and 2.5 ton inside. We bought a matching 2.5 ton outside unit and need to have it installed. From what I understand, it is a matter of Continue reading how long/cost to change an outdoor unit?

help with furnace

______________________________________________________________________ I am having trouble with the a miller(nordine)furnace a 1996 model. First it flashes a code a me a 2 or an 11. Second I turn the switch off than on. The furnace will start up at first than Continue reading help with furnace

What’s with the Whisper Heat?

______________________________________________________________________ Furnace (G20) works sometimes. Cleaned the flame sensor. What a place to get in to! Saw a past post that suggested a cleaning & it seemed to help for three days. Now I’m cold, house is cold help. Don’t Continue reading What’s with the Whisper Heat?

help-No heat ?package boiler vs assemble

______________________________________________________________________ Help, I have no heat and I have to make a contractor decision quickly. I had an old 80-90yrs oil-fired steam boiler that does not work and needs to be replaced. Asbestos has already been removed. Basically , one Continue reading help-No heat ?package boiler vs assemble

Cold nights in Toronto

______________________________________________________________________ My 3-year old Lennox 90UGF furnace is providing no heat, as the burners are not lighting. Diagnostics lights show first flashing, second one steady, implying that either the pressure switch not closing or the combustion air inducer is not Continue reading Cold nights in Toronto

Excessive Defrost

______________________________________________________________________ 2 questions, 1) 2003 Trane 14Li 4 ton unit defrosting every other run…every 90 minutes, with outdoor temp of 24 degrees with 65% humidity…does this sounds excessive? No water dripping from unit when defrosting. Set at 350 CFM per Continue reading Excessive Defrost

Totaline to Honeywell t-stat wiring problem

16:56 ______________________________________________________________________ I currently have a Totaline thermostat, and want to go to a programmable Honeywell (RTH7400D). However, the wiring markings in the Totaline do not match up with the wiring markings in the Honeywell. The Totaline had the following Continue reading Totaline to Honeywell t-stat wiring problem

electrostatic air cleaner not working

______________________________________________________________________ I have a Carrier Weathermaker 8000 furnace, and I just realized I haven’t heard the air cleaner clicking since I turned the heat on three weeks ago. Can’t find any troubleshooting tips in the documentation I have from the Continue reading electrostatic air cleaner not working