Fault Code Lookup

HVAC Sales Master
E202
Indoor blower motor mismatch
This code typically points to
  • Wrong capacity code
  • Wrong motor/horsepower for cabinet

Next checks to confirm
  1. Check unit size coding
  2. Reset and reprogram with thermostat removed while applying power

Escalation
Fault until correct match is detected
Reset behavior
Clears after correct match is detected following reset.
Urgent
Fix now
Source
Lennox unit information doc 100027, p.11