Alto-Shaam Combitherm CT PROFORMANCE Series Service Manual

MN-35949
•
Rev 07
•
01/20
•
Combitherm® CT PROformance™ and CT Classic™ Series Technical Service Manual
•
91
Troubleshooting
PROformance, Gas, Boiler-Free: No Steam Production — Steam Below 212°F(100°C)
Is the convection fan motor spinning?
No
See “Convection Motor Is Not Spinning”.
Yes
Is the Oven Cavity Temperature Probe N6 below the set
point?
No
The appliance will not call for steam production until the
N6 probe is below the set point. If the N6 probe is reading
incorrectly, test the probe and replace if necessary.
Yes
Is the burner igniting?
No
See “No Combustion On A Call For Heat”
Yes
Is the Filtered Steam Injection Solenoid Y1 beingenergized?
No
Determine which line is missing at the Y1 solenoid.
• A1 is L1 supplied from Control Board(CB) terminalX04
pin3.
• A2 is L2 supplied from Y3/A2 which is supplied from
terminalblock27-17.
Yes
Is the Y1 solenoid valve opening?
No
Replace the faulty solenoid.
Yes
Is water going through the flow control valve?
No
Inspect, clean, replace the flow control valve as necessary.
Yes
Is water being injected into the fan wheel inside the
appliance?
No
Remove the obstruction between the flow control valve and
the injection tube.
Yes
The appliance should begin producing steam in 5 minutes.

Alto-Shaam Combitherm CT PROFORMANCE Series Specifications

General

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