Specifications

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL
PG. 21
TROUBLESHOOTING
In the event of a Combitherm malfunction during operation, an error code and message will appear in the
display to assist in finding a rapid solution to the problem. The following is a list of all error codes including
the possible cause along with a solution.
ERROR
CODE
E01
E01
E02
E03
E03
E04
E11
E13
E15
DESCRIPTION OF ERROR
Low water level: Sufficient water level in steam generator
has not been reached with 3 minutes.
Low water level: Water pressure is under 11 PSI (0.7 bar)
after the solenoid valve is opened for 5 seconds.
Excessive temperature in service area: An additional fan
will engage at a temperature of 113°F (45°C) and the
error message will occur at a service area temperature of
176°F (80°C).
Fan motor shuts down from a tripped internal PTC.
Motor shuts down fan.
Auxiliary 120 fan motor not running.
Oven probe (N6 thermocouple) measures a temperature in
excess of 572°F (300°C).
Steam generator probe (B4 thermocouple) measures a
temperature in excess of 248°F (120°C).
Condenser probe (B3 thermocouple) measures a temperature
in excess of 212°F (100°C).
POSSIBLE CAUSE/REMEDY
Water tap is closed.
Filter in solenoid valve or water connection is clogged.
Water level probe is calcified or defective.
Solenoid valve Y1 is defective.
Pressure loop is calcified.
Steam generator drain cap is not water tight.
Water tap is closed.
Filter in solenoid valve or water connection is clogged.
Solenoid valve Y1 is defective.
Auxiliary 12 V fan does not turn on due to defective
thermostat or contactor.
Ventilation vents are blocked due to inefficient distance from
wall at installation site.
Minimum distance to equipment such as fryers, grills,
kettles, etc. has not been maintained.
A phase from the main power supply is missing.
The fan motor is defective.
Power phase reversed causing fan to run in reverse.
A fuse is tripped.
Trip circuit has been set too low.
Direction of motor rotation is wrong.
A phase is missing from the main power supply.
The motor protection switch is defective.
Power phase reversed causing fan to run in reverse.
The fan motor is defective.
Auxiliary fan is defective.
Defective wiring or loose connection to auxiliary fan.
Convection contactors are burned and no longer disengage.
Motor not operating due to two defective F10 fuses.
Calcification in steam generator.
Water level probe is grounded causing immersion elements
to energize.
Water tap is closed.
Oven is connected to warm water supply.
Inlet filter on solenoid valve is dirty.
Condenser cooling solenoid valve or solenoid valve coil is
defective.