IMPINGER ADVANTAGE ELECTRIC OVENS

SERIAL NUMBER N28654 AND ABOVE (OVENS WITH PUSH BUTTON CONTROLS)

SYMPTOM

POSSIBLE CAUSE

EVALUATION

Oven fan will not run

Incoming power supply

Check circuit breaker, reset if required. Check power

 

 

plug to be sure it is firmly in receptacle. Measure

 

 

incoming power, call power co. if required.

 

Fuse, 10 Amp

Check, replace if necessary.

 

Fuse holder

Check, replace if necessary.

 

Thermostat, control

Terminals are normally closed, open at 130°F (55°C). If

 

box hi-limit

open, reset and test for proper operation. If thermostat

 

 

will not hold, and control box temperature is not

 

 

exceeding 130°F (55°C), replace thermostat.

 

Switch, oven power

Check for line voltage supplied to switch. If no voltage is

 

 

present, trace wiring back to fuse holder. Check

 

 

continuity between switch terminals. Replace switch as

 

 

needed.

 

Motor, main fan

Check for line voltage supplied to motor. If no voltage is

 

 

present, trace wiring back to oven power switch. Check

 

 

motor for opens, shorts or grounds.

 

 

WITH POWER OFF: Turn fan blade to check for locked

 

 

rotor.

No control box cooling

Incoming power supply

Check circuit breaker, reset if required. Check power

 

 

plug to be sure it is firmly in receptacle. Measure

 

 

incoming power, call power co. if required.

 

Fuse, 10 Amp

Check, replace if necessary.

 

Fuse holder

Check, replace if necessary.

 

Switch, oven power

Check for line voltage supplied to switch. If no voltage

 

 

is present, trace wiring back to fuse holder. Check

 

 

continuity between switch terminals. Replace switch as

 

 

needed.

 

Cooling fan

Check for supply voltage to the cooling fan. If no

 

 

voltage is present, trace wiring back to the fuse holder.

 

 

If voltage is present and motor does not run, check

 

 

motor for opens shorts or grounds.

 

 

WITH POWER OFF: Check for locked rotor.

No automatic control

Incoming power supply

Check circuit breaker, reset if required. Check power

box cooling

 

plug to be sure it is firmly in receptacle. Measure

 

 

incoming power, call power co. if required.

 

Cooling fan thermostat

Check cooling fan thermostat (thermostat closes at

 

 

120°F and opens at 100°F). With cooling fan thermostat

 

 

pre-heated, check for continuity

Control box cooling fan

Cooling fan thermostat

See “Cooling fan thermostat” (NOTE: Thermostat will

continues to run

 

remain closed if control box temperature remains above

 

 

120°F.

Oven will not heat

Main fan

If not operating, refer to “Oven fan will not run”

 

Air pressure switch

Check air switch terminals for supply voltage to

 

 

terminals NO and COM. If voltage is present on one side

 

 

only, check for air tube blockage or misalignment. If

 

 

these are okay, adjust air pressure switch or replace

 

 

switch as needed.

 

Oven cavity hi-limit

Terminals are normally closed, opens at 660°F (350°C).

 

thermostat

If open, reset and test oven for proper operation. If

 

 

thermostat will not hold for maximum temperature, and

 

 

oven is not exceeding control setting, check for proper

 

 

location of the capillary bulb in its spring holder. If above

 

 

checks are okay, replace hi-limit thermostat.

 

Control transformer

Check for supply voltage to primary of control

 

 

transformer. If no voltage is present, trace wiring back to

 

 

oven power switch. If voltage is present, check for

6

Impinger I -–Adv Digital – Electric Service Manual - International

Page 6
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Lincoln 1455-000-E, 1454-000-E service manual Symptom Possible Cause Evaluation

1454-000-E, 1455-000-E specifications

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