Service & Parts Manual original Instructions
Part Number 32Z3871 US
Issue 3
29
TESTING
COMPONENTS
A
B
DANGER!
THIS APPLIANCE MUST BE EARTHED.
FAILURE TO DO SO MAY RESULT IN
ELECTRIC SHOCK AND DEATH.
DANGER:
BEFORE REMOVING THE OVEN CASING, ISOLATE THE
OVEN FROM THE MAINS ELECTRICITY POWER SUPPLY;
SWITCH OFF, DISCONNECT OVEN PLUG FROM WALL
SOCKET, TURN OFF ISOLATOR SWITCH TO DISCONNECT
FIXED WIRED OVENS AND LOCKOFF.
WARNING:
ALLOW OVEN TO COOL. OBSERVE AND FOLLOW ALL
SAFETY PRECAUTIONS INCLUDING THOSE DESCRIBED
UNDER THE SAFETY REGULATIONS SECTION OF THIS
MANUAL BEFORE ATTEMPTING A SERVICE OR REPAIR.
CAUTION MICROWAVE EMISSIONS:
DO NOT BECOME EXPOSED TO EMISSIONS FROM THE
MICROWAVE GENERATOR OR PARTS CONDUCTING
MICROWAVE ENERGY.
15 OVEN TESTING
15.1 Equipment required
Portable Appliance Tester (P.A.T.).
Digital Multi-meter (D.M.M.).
Megger / similar 500V d.c. resistance meter.
Microwave detection / leakage meter.
Temperature reader.
Continuity meter.
Door Spacer Kit (Part No. SA1109).
Microwave safe 600ml glass beaker
Microwave safe 2 litre container.
15.2 Earth/Insulation Test:
15.2.1 Disconnect/isolate the oven from the power
supply.
15.2.2 Connect the mains lead from the oven to a P.A.T.
(Portable Application Tester).
15.2.3 Connect the Earth from the P.A.T. to the oven
hinge (A).
15.2.4 Place the P.A.T. in an open area, such as the oor,
away from any persons.
15.2.5 Perform a Class 1 test, a PASS indicates the oven
Earthing circuit is functioning ok.
15.2.6 If a FAIL is indicated, remove the oven casing and
check ALL earth connections before retesting.
15.2.7 NEVER operate an oven that has failed this test
as it could be potentially dangerous.
WARNING:
ALWAYS DISCHARGE THE HT CAPACITORS BEFORE
WORKING ON THE OVEN USING A SUITABLY INSULATED
10M RESISTOR.
15.3 Screen calibration:
15.3.1 Apply continuous light pressure to the screen
while switching the oven on.Continue to hold until
the progress bar has completed.
15.3.2 Using a non-abrasive pointer, such as a
ball point pen, accurately press the center of each
crosshair displayed on the screen. Once calibrated the
screen will display the oven information.
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