Lincoln 1100 Series Manuale Utente

experienced, such as a rolling of

numbers, or lock-up at a given number,

first check for a display circuit lock-up. This may be

caused by a voltage

spike or surge in the incoming power

lines.  To eliminate this condition,

remove power from the time/temp

display by shutting off the main fan

switch for 15 seconds.  This should

eliminate the problem.  If this does not

solve the problem, it may becoming in

through the Commercial power lines.

Suggest that customer contact their

power company for evaluation.

Temp display inaccurate,

Time/Temp Display

Perform the power supply check, the

erratic, or inoperative

thermistor probe check, and then

perform the time/temp simulator test.

Refer to Section D for instructions.

Remember, when using the time/temp

simulator, remove all leads from the

back of the time/temp display except the

3 power leads.

After completion of the test, and if re-

installing time/temp display back in the

oven, the dip switches must be reset for

oven operation, and the time/temp

display must be recalibrated.  If

readings are not achieved, replace

display.

Time Display inaccurate,

Perform all checks as in the above

erratic, or inoperative

evaluation.  If the time check is okay,

refer to the next section.

Conveyor Drive

Check to see if the conveyor drive

(Stepper) Motor

(stepper) motor is running.  If motor

is not running, refer to “Conveyor will

not run” on Page 45.

Magnet

Check to insure that the magnet

(cemented to shaft of conveyor drive

[stepper] motor) has not been damaged,

or come loose from motor shaft.

Replace as needed.

Hall Effect Sensor

Check for any physical damage to Hall

Effect sensor (mounted on conveyor

drive [stepper] motor).  Check all

wiring and connections for damage.

If the motor is running, the magnet is

in place, but the display shows”—:—”

the Hall Effect Sensor may be defective

or improperly connected.

Conveyor Drive

Check all connections for tightness or

(Stepper Control)

proper location and check all wiring

for visible damage.  Replace as needed.

If there is still no time display and all

the above have checked out, replace the
stepper control

.

Impinger II - 1100 Series Service Manual - International

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