Alto-Shaam QC-40 Service Manual download pdf (Page 34)

10•10 MARINE COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 32

CONTROL RESET

There is a remote possibility in the day-to-day operation of the Combitherm that the control could lock or

freeze. If this occurs, the control is easy to reset.

PRESS AND HOLD the Power Key for a period of 5 seconds.

Release the Power Key.

The control will reset itself within approximately 15 seconds.

WHEN RESET, THE DISPLAY WILL INDICATE THE TIME AND DATE AND THE CONTROLS WILL BE FULLY FUNCTIONAL.

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.

CODE

E01

E02

E03

E04

E11

E13

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).

POSSIBLE CAUSE/REMEDY

Water tap is closed.

Water pressure is low.

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.

Connection to X7 connector is broken.

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.

F10 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.

Fan wheel is obstructed.

The fan motor is defective.

Auxiliary fan is defective or obstructed.

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.

Defective oven temperature probe N6.

Calcification in steam generator.

Water level probe is grounded causing immersion elements

to energize.

Water softener causing bubbles in the steam generator.

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Alto-Shaam QC-40 Service Manual Page 34

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