FieldBench
Lennox codes

Lennox

E202

Lockout

Indoor blower HP / unit capacity mismatch

Programmed unit size does not match the motor horsepower the IFC sees.

Walk E202 in Diagnose

2 plates — walk the one on the cabinet

First check

1 Read the plug / card on THIS cabinet

On Lennox EL195NE the model plug or shared-data card must match this cabinet size. A 100 kBtu plug in an 80 cabinet overfires and limits. A leftover memory card after a control swap throws d0/d4-class codes. P menu: pick the character for THIS cabinet, hold to store, let the IFC reset.

Expect: Plug / card part matches the rating plate and the replacement control bulletin.

The rest of the walkthrough is Diagnose.

On the plates

  • P menu: pick the character for THIS cabinet, hold to store, let the IFC reset.
  • An EL296E constant-torque motor in this VS cabinet will throw E202 / E310. Use the VS motor.

Plates that use E202