John Wood Commercial - AJWSC User Manual
Page 27
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Detect Conditions
Alarm (ERROR) Name
Control Action
Service
Suggestion (After
Error Matured)
Detection
Time
Remote
Display
Valve relays
shorted/open, other
internal electronic
failures
SLO_ELECTRONICS
Soft lockout.
Replace control.
All time.
SoftLockout
Flame out of
sequence.
SLO_FLAME_SEQ
Soft lockout.
Check gas supply,
burner and
harness.
During a
heating cycle.
SoftLockout
Flame detected
before trial.
FLAME_IN_PREPURGE
Soft lockout.
Check gas supply,
burner and
harness.
Before ignition. SoftLockout
Flame detected after
trial.
FLAME_IN_POSTPURGE Soft lockout.
Check gas supply,
burner and
harness.
After a heating
cycle.
SoftLockout
Sensor 1 or Sensor
2 reporting greater
than 200°F.
OVER_TEMP
Non-volatile Hard
Lockout for Europe.
Auto-reset for
domestic.
Check Appliance
operation and limit
sensor.
All time.
OverTemp
Valve relays welded
5 times.
ELECTRONICS
Non-volatile Hard
Lockout for Europe.
Auto-reset for
domestic.
Replace control.
During a
heating cycle.
Hard Lockout
Table 6 (cont’d)
Error Codes