INDUCTION COOKERS - SERVICE PROCEDURES AND ADJUSTMENTS
13
E.
A reading greater than 2 meg ohms should
be observed. It may take 10 to 15 seconds
to reach this value.
F.
To check collector/base of TR1 and TR2,
keep VOM positive lead on the heatsink
and connect the VOM negative lead to pin
6 of WF5 on the board.
G.
A reading of more than 0 meg ohms
should be observed.
6.
If either test in step 4 fails, replace the high
voltage board and perform “POWER OUTPUT
ADJUSTMENT”.
NOTE: Not all components on the board have been
checked in above tests. A failure could still exist that
would require board replacement.
INVERTER COIL TEST
WARNING: UNPLUG UNIT BEFORE SERVICING.
1.
Disconnect one coil lead from high voltage
board.
2.
Test continuity of coil with ohm meter.
A.
If your meter can be adjusted for zero
ohms, do so.
B.
Test continuity of coil. Reading should be
zero ohms.
C.
If meter cannot be adjusted, test continuity
of coil. Reading will be about .2 ohms or
the resistance of the meter leads you are
using.
3.
If coil reads open, replace inductor coil.
POWER OUTPUT
ADJUSTMENT
NOTE: On units built prior to 11/14/97, check for
potentiometer adjustment access hole in base. If no
hole is found, refer to “ACCESS HOLE
MODIFICATION”.
NOTE: Test and adjust coils independently.
1.
Use Demeyere Apollo Series sauce pan PMI
Part #424971-1 when performing this
adjustment.
A.
Partially fill pan with water, place on
center of cooking zone of cooker being
tested and set power control to maximum.
2.
Measure and record line voltage under load.
3.
Unplug power cord.
4.
Remove the top cover as outlined under “TOP
COVER”.
5.
Loosen the power cord strain relief connector
and withdraw the power cord enough to attach
an amp meter outside the case.
6.
Install the top cover and the screws securing it
to the center of the base to prevent the base
from flexing downward.
7.
Connect the power.
8.
Place pan with water on center of cooking zone
of cooker being tested and set power control to
maximum.
9.
Read the amp meter and compare reading to
the following charts.
