Unit Not Heating Properly (No Gas Error) - Southbend EzCom CG/12SC Operator's Manual

EZ C C
OM OMBINATION

Unit Not Heating Properly (No Gas Error)

Disconnect power. Remove control panel thumbscrew and
Start unit. Check gas supply pressure. (There is an inlet
pressure tap on the gas combination valve that can be used
for this purpose.) Supply pressure should be > 7" W.C. for
Place unit in oven
mode at 500°F.
Check voltage between
terminals HI and C (or MV
and MVPV) of gas valve.
No approximately 24
Replace control board.
O
PERATOR
O
VEN
Unit Not Heating Properly (No Gas Error)
slide control panel out. Reconnect power.
natural gas and > 11" W.C. for propane.
Remove front lower panel and burner box cover.
With door
closed, do main
No
burners come
on?
Close door.
Is voltage
Yes
volts?
Replace gas valve.
' M 1182851
S ANUAL REV
T
ROUBLESHOOTING
Yes
Place unit in oven
mode at 200°F.
Open door.
Depress door switch.
Does
No blower come
on?
Go to page 32,
Blower Not
Running Properly.
pressure meet
No
specifications?
Replace gas
combination valve.
2
Yes
Check gas manifold pressure.
(There is a tap on the gas
combination valve for this
purpose.) Pressure should be
approximately 4.0" W.C. for
natural gas or approximately
10.0" W.C. for propane.
Does gas
Yes
Check gas
valve wiring.
P 29
AGE