Alto-Shaam Combitherm CT PROFORMANCE Series Service Manual

MN-35949
•
Rev 07
•
01/20
•
Combitherm® CT PROformance™ and CT Classic™ Series Technical Service Manual
•
65
Troubleshooting
PROformance, Electric: No Convection Heat
Is the convection fan motor spinning?
No
See “Convection Motor Is Not Spinning”.
Yes
Is the N6 oven temperature probe below set point?
No
The convection element contactors will not be energized until
the N6 probe is below set point.
Yes
Are the K41 and K44 convection element contactors closed?
No
Check for voltage across the coil of the K41 and K42
convection element contactors. If voltage is present, replace
faulty contactor(s). If voltage is not present, determine which
leg is missing and correct.
• A1 is L1 and it is supplied to the K41 contactorfrom the
Control Board(CB) terminalX02 pin1.
• A1 is L1 and it is supplied to the K44 contactorfrom the CB
terminalX02 pin2.
• A2 is L2 and it is supplied to K45 from the N7 high limit
terminal11 and then jumped over to A2 on the K44. Reset
High Limit if tripped.
Yes
Is there line voltage being supplied to terminals 2-4-6 on the
K41/K44 contactors?
No
Repair wiring issue between pain terminalblocks 1-1, 6-1,
11-1 and K41/K44 contactors
Yes
Is there line voltage across terminals 1-3-5 on the K41/K44
contactors?
No
Replace faulty contactor(s).
Yes
Is there voltage across element loops at the convention
elements?
No
Repair the wiring between contactors and elements.
Yes
Are all element loops drawing current?
No
Replace faulty element assembly.

Alto-Shaam Combitherm CT PROFORMANCE Series Specifications

General

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