Alto-Shaam Combitherm CT PROFORMANCE Series Service Manual

86
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MN-35949
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Rev 07
•
01/20
•
Combitherm® CT PROformance™ and CT Classic™ Series Technical Service Manual
Troubleshooting
Continued from previous page
Aer the ignitor preheats (approximately 21 seconds), does
the gas valve open? A pressure drop on the incoming side of
the valve would indicate the gas valve opening. Gas supply
pressure must be between 5.5" and 14" wc on natural gas
and 9" and 14" wc on propane systems.
No
If the gas valve does not open this could be an ignition
module issue or gas valve. Replace the ignition module if the
problem continues replace the gas valve. NOTE: If the gas
valves opens but the pressure drops below 5.5” wc natural gas
or 9” wc propane this is a supply gas issue.
Yes
Measure the flame sensor current. Is the flame sensor
current at or above 1 micro amp?
No
Remove the flame sensor, check for the correct spacing from
burner. Clean, adjust or replace the flame sensor as needed.
Yes
Is the oven heating?
No
Replace the faulty ignition module.
Yes
The burner system is running properly.

Alto-Shaam Combitherm CT PROFORMANCE Series Specifications

General

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