Alto-Shaam Converge CMC-H2H

TROUBLESHOOTING
Co nv erg e® ▪ Se rvice Ma nual ▪ MN-47 241 ▪ Rev 1 ▪ 6/22
76
Chamber will not Heat
Is the oven In a cook mode with a set point
temperature higher than the actual cavity
temperature?
No
Put the oven in a cook mode and set
the set point temperature higher
than the oven cavities actual
temperature
Yes
Is the chamber fan on and running?
No
Make corrections to the chamber
fan. Once the chamber fan is
working properly, retest the heating
system. Note: fan must be running
for heat to come on.
Yes
Is the control board sending 12VDC to the solid-state
relay (SSR) for the chamber heat?
Chamber 1 SSR 1 A from control board
terminal X1 - CH1
Chamber 2 SSR 1 B from control board
terminal X1 - CH2
Chamber 3 SSR 2 A from control board
terminal X1 - CH3
No
Check the wiring and the Molex
connector. Ensure the correct
installation of all wiring and
connectors. Make any corrections
needed, or replace the control
board if all wiring and connections
tested OK.
Yes
Is there 12VDC at the SSR for the chamber?
No
Check wiring between the Control
board and the SSR
Yes
Is the green LED on or flashing?
No
When 12VDC is present at the SSR a
green LED should illuminate either
on steady or flashing.
Yes
Measure voltage in and out of the load side of the
SSR, is the relay closing?
No
When 12VDC is present at the SSR a
green LED should illuminate either
on steady or flashing.
Yes
No
When 12VDC is present at the SSR a
green LED should illuminate either
on steady or flashing.
Yes
The oven is performing as intended.