Lincoln 1133-000-A User Manual

Page 12

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Impinger II – Advantage Digital Service Manual - Domestic

12

TROUBLESHOOTING GUIDE

ELECTRIC OVENS

1130-000-A

208VAC 60

HZ.

1

PHASE

1131-000-A

240VAC 60

HZ.

1

PHASE

1132-000-A

208VAC 60

HZ.

3

PHASE

1133-000-A

240VAC 60

HZ.

3

PHASE

SYMPTOM POSSIBLE

CAUSE

EVALUATION

Oven fan will not run

Incoming power supply

Check circuit breakers. Reset if required. Call
power co. if needed.

Fuses, 10 Amp, motor and
controls

Check, replace if necessary.

Fuse holder

Check, replace if necessary.

Hi-limit thermostat,
control box

Check for voltage on both sides of 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°C), replace thermostat.

Switch, main power

Check continuity between switch terminals.
Replace switch as needed.

Main fan motor

Check for supply voltage at motor. If no voltage is
present, trace wiring back to main power switch.
WITH POWER OFF: Check for opens, shorts or
grounds. Turn fan blade to check for locked rotor.

Capacitor

Check for shorts or grounds.
WARNING: Capacitor has a stored charge,
discharge before testing.

No control box cooling

Incoming power

Check circuit breakers, reset if required. Check
power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if
needed.

Switch, main power

Check continuity between switch terminals.
Replace switch as needed.

Cooling fan

Check for supply voltage at cooling fan. If no
voltage is present, trace wiring back to power
switch. If voltage is present, and motor does not
run, check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.

No automatic control box
cooling

Incoming power supply

Check circuit breakers, reset if required. Check
power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if
needed.

Cooling fan thermostat

Check the cooling fan thermostat. (Thermostat
closes at 120

°F and opens at 100°F). With the

cooling fan thermostat pre-heated, check for
continuity. If switch is open, replace cooling fan
thermostat.

Cooling fan

Check for supply voltage at cooling fan. If no
voltage is present, trace wiring back to cooling
fan thermostat. If voltage is present, and motor
does not run, check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.

Oven will not heat

Main fan motor

Check for main fan operation. If it is not
operating, refer to “Oven fan will not run”.

Air pressure switch

This normally open switch should close when the
main fan is activated. Refer to the “Removal and
installation” section for proper adjustment.
Replace as needed.

Hi-limit thermostat,

Terminals are normally closed. If open, reset

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