Surge Board; Capacitor And Diode - GE JK3800DH1BB Technical Service Manual

Surge Board

The surge board is located behind the blower
assembly on the right side of the oven. The board
is held in place by a single Phillips head screw. The
ground wire is attached to the oven chassis near
the magnetron by a single Phillips head screw. The
outer cover must be removed to access the noise
Removing Upper Oven section in this
guide.)
View of Surge board
Check to make sure the fuses are good. Check
the board for approximate resistance value at the
following locations:
• White to white
• White to green
If any resistance is measured, replace the surge
board.

Capacitor and Diode

WARNING: Always be certain the capacitor is
discharged before servicing. Mechanically discharge
by placing insulated pliers between the diode
connection of the capacitor and the oven chassis
ground.
NOTE: The capacitor has an internal discharge
resistor that automatically discharges the capacitor
when the oven turns OFF. Under normal operation,
the capacitor should fully discharge within 30
seconds.
The oven must be partially removed to access the
capacitor. (See the Removing Upper Oven section in
this guide.)
The capacitor is located behind the top access cover
and is held in place by two Phillips head screws. A
single Phillips head screw attaches the capacitor
and diode to the oven chassis.
NOTE: When disconnecting the wires and diode
from the capacitor, note wire and diode locations.
The capacitor wires have locking tabs. Remove
the capacitor, capacitor bracket, and diode as one
assembly.
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