Lennox
E114
LockoutLine frequency out of range
No clean 60 Hz. OEM: no 60 Hertz power.
Walk E114 in Diagnose
2 plates — walk the one on the cabinet
First check
1 Measure at the IFC under load
On Lennox EL195NE line-voltage codes are incoming power. Measure L1/L2 (or L1/N) at the board while it is trying to run, not just at the disconnect. Generator / inverter / poorly conditioned backup power is the usual.
Expect: Voltage in the rating-plate window under load.
The rest of the walkthrough is Diagnose.
On the plates
- Generator / inverter / poorly conditioned backup power is the usual.
- Utility frequency events are rare — confirm you are not on a job-site gen set.