Classic, Gas, Boiler-Free: No Steam Production - Steam At 212°F (100°C) - Alto-Shaam COMBITHERM CTC Series Operation, Maintenance, Troubleshooting, Wiring Diagrams

Classic, Gas, Boiler-Free: No Steam Production — Steam at 212°F (100°C)
Convection Motor is Not
Troubleshoot "No Ignition
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.
Replace the faulty solenoid.
Remove the obstruction
between the flow control
valve and the injection tube.
M N - 3 5 9 4 9 • R e v 0 4
See "High Speed
No
Spinning".
The appliance will not call for steam
production until the B5 probe is below the set
point. If the B5 probe is reading incorrectly,
test the probe and replace if necessary.
No
On A Call For Heat".
Determine which line is
missing at the Y1 solenoid.
No
Inspect, clean, replace the flow
control valve as necessary.
No
• 0 6 / 1 6 • C o m b i t h e r m ® C T P R O f o r m a n c e ™ S e r i e s
Is the convection
fan motor spinning?
Yes
Is the Steam Bypass
No
Temperature Probe B5 below
Yes
Is the burner igniting?
Yes
Is the Filtered Steam
No
Injection Solenoid Y1
Yes
Is the Y1 solenoid valve
opening?
Yes
Is water going through the
No
flow control valve?
Yes
Is water being injected into
the fan wheel inside the
appliance?
Yes
The appliance should begin
producing steam in 5
•
Troubleshooting
the set point?
being energized?
minutes.
T e c h n i c a l S e r v i c e M a n u a l • 8 7