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(5)PROBLEM(5)PROBLEM(5)PROBLEM(5)PROBLEM(5)PROBLEM
The
magnetron
operates
on
high
level when a
lower cook power
is selected.
STEPSTEPSTEPSTEPSTEP
RESULTRESULTRESULTRESULTRESULT
SEQUENCESEQUENCESEQUENCESEQUENCESEQUENCE
Runs
Sep power level at low.
Touch
STARTSTARTSTARTSTARTSTART
key and measure
voltage between leads for primary
winding
of
H.V
transformer
after
removing
the
wire
leads
from
after
removing
the
wire
leads
from
after
removing
the
wire
leads
from
after
removing
the
wire
leads
from
after
removing
the
wire
leads
from
terminals of H.V transformer.terminals of H.V transformer.terminals of H.V transformer.terminals of H.V transformer.terminals of H.V transformer.
0 Volt
230 Volt
No problem Measure water temperature rise exactly.
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(6)PROBLEM(6)PROBLEM(6)PROBLEM(6)PROBLEM(6)PROBLEM
No buzzing by touching keys and at the end of cooking
Check normal operation of
control
circuit
board
Replace control circuit board.
Replace relay circuit
board.
Normal relay circuit boad
Normal
control
circuit boad
Runs