TROUBLE SHOOTING GUIDE

 

 

ELECTRIC OVENS

 

MODEL 1134

220/380 VAC

THREE PHASE

50 HZ

MODEL 1135

240/415 VAC

THREE PHASE

50 HZ

MODEL 1136

240 VAC

SINGLE PHASE

50 HZ

MODEL 1150

220/380 VAC

THREE PHASE

50 HZ

REFER TO PROPER SCHEMATIC FOR INDENTIFIED COMPONENTS

SYMPTON

POSSIBLE CAUSE

EVALUATION

 

Oven fan will not run

Incoming Power Supply

Check circuit breakers. Reset if required.

 

 

Call Power Co. if needed.

 

 

Fuse, 10 Amp, Main Fan Check, replace if necessary.

 

 

Fuseholder

Check, replace if necessary.

 

 

Fuse, 1 Amp,

Check, replace if necessary.

 

 

Transformer

 

 

 

Fuseholder

Check, replace if necessary.

 

 

Transformer, Control

120 VAC ± 10% should be present at secondary of

 

 

transformer. If proper voltage is not present, check

 

 

transformer primary for proper input. Replace as

 

 

needed.

 

 

Thermostat, High Limit,

Terminals are normally closed. If open,

 

Oven Cavity

reset the thermostat and test for propeoperation. If it

 

 

will not reset and hold, replace thermostat.

 

Switch, Main

Check for continuity between switch

 

Fan

terminals.

 

 

Relay, Oven Start

Check for continuity at relay coil, and

 

 

visually check for pull in of contacts.

 

20 Minute Time Delay

Check for 120 VAC at terminals #1 to

 

 

neutral on 20 minute Time Delay Relay.

 

 

If no voltage is present, trace wiring

 

 

back to power source. If voltage is

 

 

present at terminal #1, check for 120

 

 

VAC at terminal #2 to neutral. If no voltage ispresent,

 

 

and oven start relay is closed, replace Time Delay.

 

Main Fan Relay

Check continuity to 120 VAC coil. Check

 

 

for power to relay coil (120 VAC). Check for 220/240

 

 

VAC to relay terminals.

 

 

Main Fan Motor

Check for opens, shorts, or grounds.

 

 

WITH POWER OFF: Turn fan blade to

 

 

check for locked rotor.

 

 

Capacitor

Check for opens, shorts, or grounds.

No main fan cool down

20 Minute Time Delay

Check for 120 VAC at terminal #2 to

 

 

neutral while oven is “on”. Turn off the main fan

 

 

switch, 120 VAC should continue to be present for 20

 

 

minutes. If voltage is not present for approx. 20

 

 

minutes, replace the timer.

 

Impinger II - 1100 Series Service Manual - International

 

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Image 37
Lincoln 1100 Series service manual Model