This guide includes troubleshooting steps for situations that may occur with the LiftMaster MyQ 821LM, 821LMB, 821LMC-S, or MyQ-G0301. LED indicators When troubleshooting, take note of the various LEDs on the LiftMaster MyQ Smart Garage Hub. LED color and state MyQ Smart Garage Hub status Wi-Fi needs to b…
Understanding reported behavior Common problems with heating: * Heat does not turn on * Heat turns on, but the system is not heating * Heat pump is not running * AUX heat is not working * Problem with the fan Common problems with cooling: * Air Conditioner is not turning on * The A/C turns on, but the syste…