Questions & Answers for: lennox troubleshooting

I have a Lennox Pulse 21 model G21Q4/5-100-3. The blower motor will not turn off even if the thermostat is in the off position. I suspect a stuck relay or control. Any advice? Hi, That can be a bad ...

lennox furnace model G11Q3-110 v.2 burners light but go out before fan comes on have lit the pilot 2 times and the burners stayed lit until the fan came on the first time. The second time the burners ...

lennox troubleshooting The furnace doesn't respond to the commands from the thermostat. The thermostat has been replaced and didn't fix the problem. The only thing that seems to work is powering off ...

lennox troubleshooting I have a G21Q unit. When the heat cycles off I remember the fan cycling on and off to cool down the heat exchanger. It dose not do that anymore. What controls that. The fan is ...

lennox troubleshooting Lennox model G14Q4-80-2 burner will start but fan motor does not start. After a short time the burner will shut off. If I set fan to run instead of auto it will run and burner ...

outdoor lennox elite ac unit not turning on circuit breaker chkd, it is on position, indoor register working. there is a grey box near outside unit with a black on/off handle but cant move it. how can

lennox troubleshooting I have gone on vacation for a week and i just returned to find out my ac compressor or condensor fan is not coming on. Only my inside blower is working. I have had it on for ...

lennox troubleshooting THE COMPRESSOR UNIT IS NOT RUNNING (OUTSIDE UNIT). IF THE THERMOSTAT SWITCH IS TURNED OFF AND THEN ON, THE COMPRESSOR UNIT UNIT WILL RUN FOR APPROX 5 MINUETS AND THEN SHUT-OFF. ...

...Troubleshoot the ignitor of the Rheem RGDA model gas furnace.... Jun Sim 5 months ago ... My lennox ...Missing: lx2000 Rheem Criterion II No Heat - YouTube ? 0:47 ...

Have a Lennox G26 series. The 2 LED lights flash fast. Exhaust fan starts but furnace doesn't kick in. No heat. That exhaust fan is called the Induced Draft Motor or IDM. It's the first action of the ...