Southbend 336D-3T - Manual (Page 41)

M
ODEL
300 R
ESTAURANT
R
ANGES
T
ROUBLESHOOTING
O PERATOR ’ S M ANUAL 1182298 REV 3 P AGE 41
TROUBLESHOOTING
Blower
starts but
shuts off.
If the blower starts up turn the oven
and allow to reheat to 500 ° F.
Leave the blower turned on and
turn off the oven thermostat and
allow to cool.
Check for excessive grease and
dust buildup on the motor.
Check that there are no air flow
obstructions around the range.
Test oven.
If the amperage surge remains at
greater than the rating replace the
motor.
If the motor shuts off and there
is no excessive heat around the
blower motor it must be
replaced.
Observe that the amperage surges
and returns to the motor amperage
reading for high speed.
Turn on the oven Power Switch.
Connect main power supply.
CAUTION! Be sure a DVM is
protected to 40 amps or greater.
REMOVE THE MAIN POWER
SOURCE. UNPLUG OR
DISCONNECT CIRCUIT
BREAKER.
Check all wiring for loose
connections or breaks.
Cold
Check for hot air leaks around the
motor pocket.
Check for excessive heat sources
behind the range.
Place a DVM or ammeter on the
black wire #1.
Go to the junction box on the back
of the range and remove the cover.
Check that the motor is not against
a wall.
Check that the vents at each end of
the motor are not obstructed.
BLOWER RUNS
INTERMITTENTLY
Hot