Alto-Shaam Combitherm CT PROFORMANCE Series Service Manual

80
•
MN-35949
•
Rev 07
•
01/20
•
Combitherm® CT PROformance™ and CT Classic™ Series Technical Service Manual
Troubleshooting
Classic: No High Speed Convection Motor Operation(E03/E04)
Does the motor fan wheel spinfreely?
No
Remove the obstruction and/or replace the motor as needed.
Yes
Is the K50 high speed contactorbeing energized?
No
Determine which leg of power is missing and correct:
• A1 is L1 supplied from Control Board(CB) terminalX01
pin2.
• A2 is L2 supplied from terminalblockTB 27-19.
Yes
Is the K50 contactorclosing?
No
Replace the faulty contactor.
Yes
Is there line voltage across terminals 1/3/5 on the K50
contactor?
No
Test for blown F4/F6/F7 fuse(s) and/or repair the wiring issue
between fuses and K50.
Yes
Is there line voltage across terminals 2/4/6 on the K50
contactor?
No
Replace the faulty contactor.
Yes
Is there line voltage across the red/white/yellow wires at the
convection motor?
No
Repair the wiring issue between K50 and the convection
motor.
Yes
Is the motor running?
No
Replace the faulty motor and capacitors asapplicable.
Yes
The high speed motor is operating.

Alto-Shaam Combitherm CT PROFORMANCE Series Specifications

General

Brand	Alto-Shaam
Model	Combitherm CT PROFORMANCE Series
Category	Oven
Language	English