Lennox EL296UHE Series Unit Information

Page 12
TABLE 4 Continued
Code Diagnostic Codes/Status of Equipment Action Required to Clear and Recover
E125 Control failed self-check, internal error,
failed hardware. Will restart if error recovers.
Integrated control not communicating. Covers
hardware errors (ame sense circuit faults, pin
shorts, etc.).
Hardware problem on the control. Cycle power on control. Replace
if problem prevents service and is persistent. Critical alert. Cleared
300 seconds after fault recovered.
E200 Hard lockout - Rollout circuit open or previously
open.
Correct cause of rollout trip, or replace ame rollout switch. Test
furnace operation. Cleared after fault recovered.
E204 Gas valve mis-wired. Check gas valve operation and wiring. Clears when repaired.
E205 Gas valve control relay contact shorted. Check wiring on control and gas valve. If wiring is correct, replace
control.
E206 Gas valve second-stage relay failure. Furnace will operate on 1st stage for remainder of the heating
demand. Will clear after fault recovered. If unable to operate 2nd
stage, replace control.
E207 Hot surface ignitor sensed open. Measure resistance of hot surface ignitor. Replace if open or not
within specied range found in IOM. Resumes normal operation
after fault is cleared.
E223 Low pressure switch failed open. Check pressure (inches w.c.) of low pressure switch closing on
heat call. Measure operating pressure (inches w.c.). Inspect vent
and combustion air inducer for correct operation and restriction.
Resumes normal operation after fault is cleared.
E224 Low pressure switch failed closed. Check pressure (inches w.c.) of low pressure switch closing on
heat call. Measure operating pressure (inches w.c.). Inspect vent
and combustion air inducer for correct operation and restriction.
Resumes normal operation after fault is cleared.
E225 High pressure switch failed open. Check pressure (inches w.c.) of high pressure switch closing on
heat call. Measure operating pressure (inches w.c.). Inspect vent
and combustion air inducer for correct operation and restriction.
Resumes normal operation after fault is cleared.
E226 High pressure switch failed closed. Check operation of high pressure switch closing on heat call.
Measure operating pressure (inches w.c.). Inspect vent and
combustion air inducer for correct operation and restriction.
Resumes normal operation after fault is cleared.
E227 Low pressure switch open during trial for
ignition or run mode.
Check pressure (inches w.c.) of low pressure switch closing on
heat call. Measure operating pressure (inches w.c.). Inspect vent
and combustion air inducer for correct operation and restriction.
Resumes normal operation after fault is cleared.
E229 Ignition on High Fire - Information Only. Code is displayed if 1) low pressure switch fails to close, then
furnace will switch to high speed inducer to close both low and
high pressure switches, then furnace lights on high re, or 2) if
continuous fan is active, furnace lights on high re for 60 seconds
to improve heat exchanger warm up time.
E240 Low ame current - Run mode. Check micro-amperes of ame sensor using control diagnostics
or eld-installed mode. Clean or replace sensor. Measure voltage
of neutral to ground to ensure good unit ground. Alert clears after
current heat call has been completed.
E241 Flame sensed out of sequence - Flame still
present.
Shut o󰀨 gas. Check for gas valve leak. Replace, if necessary. Alert
clears when fault is recovered.
E250 Limit switch circuit open. Check for proper ring rate on furnace. Ensure there is no blockage
in heater. Check for proper air ow. If limit not closed within 3
minutes, unit will go into 1-hour soft lockout. Resumes normal
operation after fault is cleared.

Lennox EL296UHE Series Specifications

General

Brand	Lennox
Model	EL296UHE Series
Category	Furnace
Language	English