MN-35947
•
Rev 22
•
10/22
•
Combitherm® CT PROformance™ and CT Classic Series Installation Manual
•
55
Troubleshooting – Error Codes
Error
Code
Error Call Out in Display
Description of Error
Possible Cause(s) and Remedies
E07
Error Received from VFD
Applies to table-top models and
upper VFDs on roll-in models.
When VFD is
fl
ashing the green
light.
— Refer to VFD error code list and match to number of blinks
on the green LED of VFD.
E08
Error Received from Lower VFD
Applies only to roll-in models.
When VFD is
fl
ashing the green
light
— Refer to VFD error code list and match to number of blinks
on the green LED of VFD.
E11
Convection Temperature High
In Combination program, cavity
temperature N6 is measuring
in excess of 600ºF (315ºC) for a
minimum of 25 seconds.
In Convection program, cavity
temperature probe (N6) is
measuring in excess of 600ºF
(315ºC) for a minimum of 25
seconds.
— Convection element contactor locked/on.
— Oven cavity temperature probe (N6) has malfunctioned.
E13
Steam generator temperature
High
Steam generator temperature is
more than 248ºF (120ºC) for more
than 25 seconds, detected by
probe (B4).
— Calcium build-up on water level probe.
— Calcium build-up in steam generator.
— Steam element contactor locked/on.
— Boiler temperature probe (B4) has malfunctioned.
E15
Condensor Temperature High
Condensor-water temperature is
more than 212ºF (100ºC) for more
than 180 seconds, detected by B3
probe (B4).
— Water supply is shut off.
— Plugged steam bypass hose.
— Miswired condensor temperature probe (B3).
— Condensor temperature probe (B3) has malfunctioned.
— Cooling-water-solenoid valve (Y2) has malfunctioned.
E20
B11 Core Temperature Probe
Single Point Fault
Single-point core-temperature
probe malfunctioning or
disconnected.
— Core-temperature probe (B11) not inserted into food
correctly.
— Core-temperature probe (B11) not connected to oven.
— Clean probe receptacle pins with sandpaper if applicable.
— Core-temperature probe (B11) has malfunctioned.
E21
N6 Cavity Probe Fault
Cavity-temperature probe
malfunctioning or disconnected.
— Oven cavity temperature probe (N6) has malfunctioned.
— Oven cavity temperature probe (N6) wires disconnected.
E22
B10 Core Temperature Probe
Multi-point Fault
Multipoint core-temperature
probe malfunctioned or
disconnected.
— Multipoint core temperature probe (B10) malfunctioned.
— Multipoint core temperature probe (B10) wires
disconnected.
E23
B4 Steam Generator Probe Fault
Steam-generator temperature
probe malfunctioned or
disconnected.
— Boiler temperature probe (B4) has malfunctioned.
— Boiler temperature probe (B4) miswired.
E24
B5 Bypass Probe Fault
Bypass steam-temperature probe
malfunctioned or disconnected.
— Bypass steam temperature probe (B5) has malfunctioned.
— Bypass steam temperature probe (B5) miswired.
E25
B3 Condensor Probe Fault
Condensor-water-temperature
probe malfunctioned or
disconnected.
— Condensor temperature probe (B3) has malfunctioned.
— Condensor probe (B3) miswired.
E26
B10 - Point 1 - Core Temperature
Probe Multipoint Fault
Multipoint core-temperature
probe malfunctioned or
disconnected.
— Multipoint core-temperature probe (B10) malfunctioned.
— Multipoint core-temperature probe (B10) miswired.
E27
B10 - Point 2 - Core Temperature
Probe Multipoint Fault
Multipoint core-temperature
probe malfunctioned or
disconnected.
— Multipoint core-temperature probe (B10) malfunctioned.
— Multipoint core-temperature probe (B10) miswired.
Error Codes
