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blower fan stops

  1. HVAC
    We have the above mentioned natural gas furnace and it is about 6 years old. For past two weeks I have been noticing that at the end of the cycle when the blower suppose to blow the air at high speed (typically this last up 40 to 50 seconds) it is lasting only 15 to 17 seconds and it dies off. I...
  2. HVAC
    Hello, I have a problem with my 14 yo HVAC system. For a couple of months now, the blower randomly goes on and off. Sometime it can be once every day, sometime once every 2 seconds, and sometime it can work properly for days. When the blower stops, I can hear a *click* coming from the relay...
  3. HVAC
    Hi everyone, I haven't had access to a computer in a while, but I asked about a blower motor here before and people were very kind and helpful. I haven now replaced the blower motor and run capacitor (single phase). Before, the only thing that would turn on when the thermostat was set to...
  4. HVAC
    Hi, Other day I noticed AC was not blowing cool air anymore. I check on the breaker and everything was in place. Thermostat was calling for cool. I also jumped R and G, still blower fan will not come on. I did component self test by briefly shorting TEST to COM terminal, everything came...
  5. HVAC
    Hi, I have a York Diamond 90 Furnace/AC with a White-Rodgers 50A50-241 controller. The blower will come on at a lower speed that I would suspect it should, run about 20-30 seconds and then shut off. Motor is HOT to the touch. There are no error indications on the controller. I assume the...
  6. HVAC
    A couple of weeks ago, I noticed a pulsating sound coming from my vents. What I found is that with the AC on or FAN on, the fan is not staying on consistently. The fan will shut off, I hear clicking in what I am guessing to be a relay, and the diag lights switch from a simultaneous blink to a...
  7. HVAC
    Greetings, All. I have a new-to-me home that's about 24 years old (bought it less than a year ago) with a forced air heat / AC system. Last summer / fall, there were no issues with the AC (other than it being pretty undersized for the home and not being able to truly cool the living space) and...
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