Troubleshooting Guide / Gas Ovens - Lincoln Impinger II - Advantage Series Service Manual

MODEL 1116-000-A
MODEL 1117-000-A
SYMPTOM
Oven fan will not run
No control box cooling
No automatic control
box cooling
Oven will not heat
8

TROUBLESHOOTING GUIDE / GAS OVENS

NATURAL GAS
LP GAS
POSSIBLE CAUSE
Incoming Power Supply
Fuse, 10 Amp
Fuse Holder
Hi Limit Thermostat-Control
Box
Main Fan Switch
Main Fan Motor
Capacitor
Incoming Power
Main Fan Switch
Cooling Fan
Incoming Power Supply
Cooling Fan Thermostat
Cooling Fan
Gas Supply
Main Fan
High Limit Oven Cavity
Thermostat
Centrifugal Switch
of Main Fan Motor
120 VAC 60 HZ
120 VAC 60 HZ
EVALUATION
Check breakers, reset it required. Check power plug
to be sure it is firmly in receptacle. Measure
incoming power/call power company if needed.
Check, replace if necessary.
Check, replace if necessary.
Check for voltage on both sides of the switch.
Terminals are normally closed. If open, reset and
test oven for proper operation. If thermostat will not
hold and control box temperature is not exceeding
140°F (60°), replace thermostat.
Check continuity between switch terminals.
Check for opens, shorts, or grounds. WITH POWER
OFF turn fan blade to check for locked rotor.
Check for shorts or grounds.
WARNING: Capacitor has a stored charge,
discharge before testing.
Check main circuit breakers, reset if required, call
power company if needed.
Check continuity between switch terminals
120 VAC should now be at the fan motor. If voltage
is present, check motors for shorts or opens. WITH
POWER OFF: Check for locked rotor.
Check circuit breakers,
reset if required. Call the power company if needed.
Check the cooling fan thermostat. (Thermostat
closes at 120°F and opens at 100°F). With the
cooling fan thermostat preheated, check for
continuity. If switch is open, replace.
120 VAC should be at the motor. If voltage is
present, check motor for shorts, opens, or grounds.
WITH POWER OFF: check for locked rotor.
Check for adequate gas supply and closed manual
gas shut offs. Also, check flexible gas line
connection.
If not operating, refer to "Oven fan will not run".
Terminals are normally closed. If
open, push in reset button and retest. If thermostat
will not hold for maximum oven temperature, and
oven is not exceeding temperature dial setting,
check for proper location of capillary bulb in its
spring holder. If above checks okay, replace hi-limit
thermostat.
Check for 120 VAC at lead #9
(located at 6 pin connector in raceway near the main
fan motor) to neutral. If no voltage is present, and
motor is running, replace motor.
Impinger II – Advantage Service Manual - Domestic
1 PHASE
1 PHASE