Conveyor belt
doesn't move, or it
moves unevenly.
Unexpected speed
changes.
Blower motor(s) "jammed"
Blower motor(s) "stalled" (not running
when Main Switch ON)
If all previous tests verify power and
control to gearmotor, replace gearmotor.
4. Verifywire connectors from power
supply to gearmotor (2 wires
w/connectors). If power supply doesn't
5. Verify potentiomter connections to
gearmotor (3 wires w/connectors). If
speed doesn't change when knob is
turned, test with spare pot before replacing
original pot.
Remove source(s) of obstruction.
CAUTION: TURN OFF MAIN CIRCUIT
BREAKER BEFORE REACHING INTO
BLOWER WHEEL COMPARTMENT.
SERIOUS INJURY COULD RESULT
OTHERWISE!!
THE PROBLEM
THE CAUSE
THE SOLUTION
CAUTION: THE FOLLOWING TESTS 1-
5 ARE PERFORMED WITH LIVE POWER
WITH CONTROL BOX OPEN, OR REAR
MOTOR COVER REMOVED. THESE
TESTS TO BE PERFORMED ONLY BY
AN AUTHORIZED SERVICE AGENT.
No air or not
enough air coming
from blower(s)
(Continued)
Conveyor gearmotor failed
(Continued)
Turn Main Switch OFF for at least 30
seconds, then turn it ON again. This
resets speed controls. If this doesnt help,
turn OFF Main Circuit Breaker for
, then turn it ON again.
1
Minute
19
Oven not hot
enough
Temperature control not working properly
CAUTION: THE FOLLOWING TESTS
ARE PERFORMED WITH LIVE POWER
WITH CONTROL BOX OPEN. THESE
TESTS TO BE PERFORMED ONLY BY
AN AUTHORIZED SERVICE AGENT.
