44
THE CONVECTION CIRCUIT
ISSUE RESOLUTION
F8: Heat Low
Oven Not Warming Up
1. Check that the Blower Motor is moving air.
o
Blower Motor is not moving air: Check Blower Motor Assembly
and verify Motor is stalled. Correct any issues with Motor Assembly.
See Figure 33.
o
Blower Motor is moving Air: Verify High-Limit Thermostat is
not tripped. See the High-Limit Thermostat information below.
High-Limit Thermostat:
o
Thermostat tripped: Reset and determine why the Thermostat
tripped (See Figure 32, Item 106). Look for excess build up of
grease inside the oven or any other source for a fire.
o
Thermostat is not tripped: Check Main Convection Heater.
1. Convection Heater is Defective: Replace the Convection Heater
and verify the K4 SSR (Figure 31) is not shorted across output.
2. Convection Heater OK: Check the K4 SSR.
o
K4 defective: Replace.
o
K4 OK: Verify all wiring.
F2: Cook Temperature
Low
1. Verify Cook Door Operation.
o
“Cook Door O
pen” Message: Verify which switch is not actuating
and r
eadjust. See page 34 and 36.
o
Cook Door OK: Verify High-Limit Thermostat is not tripped. See
the H
igh-Limit Thermostat below.
High-Limit Thermostat:
o
Thermostat tripped: Reset and determine why the Thermostat
tripped (S
ee F
igur
e 32, I
tem 106). Look for ex
cess build up of
grease inside the oven or any other source for a fire.
o
Thermostat is not tripped: Check M
ain Conv
ection H
eater
.
1.
Conv
ection H
eater is Defective: Replace the Convection Heater
and verify the K4 SSR (Figure 31) is not shorted across output.
2. Convection Heater OK: Check the K4 SSR.
o
K4 defective: Replace.
o
K4 OK: Verify all wiring.
CONVE
CTION CIRCUIT TROUBLE SHOOTING