PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Product becoming
Too much humidity inside the
Empty water from the water pan.
soggy.
cabinet.
Holding product too long.
Hold product for recommended time.
Vent not set properly.
Set vents per recommended procedure.
Product Dry.
No water in pan.
Remove pan and put in approximately
1” of hot water.
Heating System
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Unit will not heat to
Faulty blower.
Check blower and replace if necessary.
desired temperature.
Display not indicating correct
Check cabinet temperature with a ther-
temperature.
mometer. If the temperature is within
10
o
F (12
o
C) of the display, proceed
with the calibration procedure. If more
than 10
o
F (12
o
C), replace the tempera-
ture probe.
One of the heaters defective.
Check heater and replace if necessary.
Doors being left open too much.
Only open doors as necessary.
Door gaskets torn or worn.
Replace door gasket.
Defective high limit on one of
Check high limit, replace if necessary.
heaters.
Unit Overheating
Faulty control.
If heat LED stays on past setpoint
temperature, try to re-initialize the
controls. If that fails, replace control.
Faulty blower.
Check blower and replace if necessary.
Error message HI
Cabinet temperature exceeds
To reset , turn power switch OFF and
hi-limit range.
then ON.
Ventilating System
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Both blowers not
Faulty blowers.
Check blower and replace if necessary.
working.
Faulty fuse. (If unit is
Check fuse and replace if necessary.
equipped with fuse)
NON-SCHEDULED MAINTENANCE
TESTING INSTRUMENTS
You may use 2 instruments to check the
electric components.
1. A Continuity Light.
2. An Ohm Meter.
When the manual refers to the circuit being
open, the continuity light will not illuminate or
the ohm meter will read 1 or infinite resistance.
NOTE:
A continuity tester cannot be used to
check coils.
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