SOURCE: Electric furnace blows cold air before and after warm air.
It is normal. Your house has to go down a couple more degrees because the heat pump is not working. You can solve this by rewirng you thermostat. Take off the wire that goes to Y and tape off. Then take the wires that are marked w and e or w1 and put the wires to yellow. Do not run ac with it wired like this. If you need more information please post me back
SOURCE: Central Electric heat not blowing hot or warm air
Make sure you are in the heat mode. Do you hear the wall thermostat click when you raise and lower the set temp. If not replace thermostst. Clean all filters to start. Does your heat source have a pilot light to start or is the unit located out side. If apilot light make sure itis lit. let's go from there
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SOURCE: 2003 Mitsubishi Eclipse GS blows cold air in heat mode.
ok here we go and you aren't going to believe it...
I replaced the thermostat step one
I noticed that I had a small leak at the engine side of upper hose fixed that by taking it off and cleaning it and putting the hose back on Step two
then while refilling the reservoir with coolant i found that the hose that was supposed to be in the fluid was curled up on top and not sticking down in the fluid where it should be.
played with the hose until i got it to fall down in the reservoir where it should be Step 3
I started the car with the radiator cap off and let it run until it got to normal operating temp. and keep filling the radiator with fluid until the level stayed constant. Then put the cap back on and test drove. Everything worked fine haven't had that much heat in awhile and it kept blowing hot even when i stopped and let it idle for ten min.during test drive. Checked reservoir when I got home and had to add a small amount of coolant but not much.
I really think that the hose in the reservoir not being in the right place and pulling air into the system instead of coolant is the real culprit of this drama, but i replaced the thermostat to be safe.
SOURCE: My Ruud Achiever 90 Plus not blowing cooled air
Look on the condensor, (outdoor unit) at the very bottom of the rear panel and you should find a red reset button. push it. If that does not solve the problem, and the outdoor unit is running (make sure both the fan AND the compressor are running) then you are looking at a low refridgerant issue and possibly dirty coils.
In that case, clean the coils and have refridgerant added.
SOURCE: furnace blowing cold air
Nordyne Furnace, pilot is lit, thermostat is reset, Heater is on but blowing cold air.
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