58
•
MN-35947
•
Rev 22
•
10/22
•
Combitherm® CT PROformance™ and CT Classic Series Installation Manual
Troubleshooting – Error Codes
Error
Code
Error Call Out in Display
Description of Error
Possible Cause(s) and Remedies
E100
One or more maintenance
reminder has timed out.
When any maintenance
reminder has expired without
action having been taken by the
operator.
— Enter maintenance reminder screen and address the item
that has timed out and reset.
E101
Ventless Hood Fault - No
Pressure
If the power switch or pressure
switch is not closed.
— Check if
fi
lters are installed.
— Check if
fi
lters are clogged.
— Check operation of hood fan.
— Check
fi
lter switch for proper operation.
— Check pressure switch for proper operation.
E102
Ventless Hood Fault — Filters
Not Present
If the air
fi
lter switches are not
closed.
— Check if
fi
lters are installed.
— Check if
fi
lters are clogged.
— Check operation of hood fan.
— Check
fi
lter switch for proper operation.
— Check pressure switch for proper operation.
E103
Option Board Doesn’t Send
Switch Setting
Option Board (OB) not
communicating with Control
Board (CB).
— Check CAN cable connection between OB and CB.
— Ensure CB dip switch is set to see an OB (ON position).
— Incompatible OB and CB software (update software).
— OB has malfunctioned.
— CB has malfunctioned.
E104
Option Board Not
Communicating
Option Board (OB) not
communicating with Control
Board (CB).
— Check CAN cable connection between OB and CB.
— Ensure CB dip switch is set to see an OB (ON position).
— Incompatible OB and CB software (update software).
— OB has malfunctioned.
— CB has malfunctioned.
E105
No or Low Water Pressure
Water pressure switch not
activated.
— Water supply not connected.
— Water supply is shut off.
— Water supply to unit blocked or obstructed (check
fi
lter).
E108
Cooling Fan Failure
If the temperature on the
control board (relay board) is
greater than 140ºF (60ºC) and
less than 176ºF (80ºC). (See error
code E02.)
— Cooling fan has malfunctioned.
— Cooling fan air intake blocked.
E109
High Limit Switch
Press the high-limit reset
switch only once. If the
condition remains, contact
Alto-Shaam service provider.
The High Limit Switch input to
the CB (N7) is “open”.
— Unit has experienced an overheat condition.
— Cooling fan has malfunctioned.
— Heat relay is stuck closed.
— Connection between high limit switch and Control Board
(CB) is faulty.
— High limit switch has malfunctioned.
E200
The SD card has been
detected to be larger than
2GB in size.
The SD card inserted is larger
than 2GB in size.
— SD card is larger than 2GB in size. Contact service to order
replacement SD card.
E210
VFD Under Voltage
Applies to table top and upper
VFDs on roll-in models.
VFD is in an under-voltage
condition.
— Possible VFD malfunction.
E211
VFD Over Voltage
Applies to table top and upper
VFDs on roll-in models.
VFD is in an over-voltage
condition.
— Possible VFD malfunction.
E212
VFD Overheating
Applies to table top and upper
VFDs on roll-in models.
VFD is in an overheat condition.
— Cooling fan has malfunctioned.
— Cooling fan air intake blocked.
— High-limit switch has malfunctioned.
— Cooling fans damaged.
— Possible VFD failure.
Error Codes
