I.C.E. HTDM Food Process Unit - Manual (Page 21)

21
V. Trouble Shooting
AIR PROVING ERROR
•
The ICECON2 controller has
lost the Tachometer signal.
•
Check combustion blower
operation.
•
Check tachometer sensor
operation (see section
******).
•
Check ICECON2 fuses
FLAME ERROR
•
The ICECON2 controller has
lost the 24 VAC on terminal
J22.
•
Check gas supply
•
Check ignition module for
proper operation
•
Check all fail safes for
proper operation
•
Check valves, manual and
solenoid, for proper
operation
•
Check ICECON2 fuses
HIGH LIMIT ERROR
•
The ICECON2 controller has
received a temperature
reading above the factory set
value.
•
Check main blower and dampers
for proper operation.
•
Check discharge sensor for
correct attachment. Open
contacts on the Discharge
sensor terminals will cause
indication of a high limit
condition.
•
Check ICECON2 fuses
LOW LIMIT ERROR
•
The ICECON2 controller has
detected a temperature below
that set by the as the low
limit.
•
Check unit for proper
operation.
•
Check discharge sensor.
Continuity between the white
and black terminals will
return a –51 degree F signal.
•
Check ICECON2 fuses
VALVE ERROR
•
The ICECON2 controller has