Safety Precautions For Disassembly And Repair - Frigidaire MFM-6D Service Manual

SAFETY PRECAUTIONS FOR DISASSEMBLY AND REPAIR

– Cautions to be observed when trouble shooting.
Unlike many other appliances, the microwave oven is a high-voltage, high-current equipment. It is
completely safety during normal operation. However, carelessness in servicing the oven can result in an
electric shock or possible danger from a short circuit.
(1) Always remove the power plug from the outlet before servicing.
(2) Use an insulated screwdriver which is attached to iron plate, and wear rubber gloves when servicing the
high voltage side.
(3) Warning about the electric charge in the high voltage capacitor. When inspecting and repairing the high
voltage side, always short the capacitor terminals and make sure of discharge.
1. Check the grounding.
Do not operate on a 2-wire extension cord.
The microwave oven is designed to be used
when grounded.
It is imperative, therefore, to makes sure it is
grounded properly before begining repaire work.
2. Warning about the electric charge in the high
voltage capacitor.
For about 30 seconds after the operation stops,
electric charge remains in the high voltage
capacitor. When replacing or checking parts,
short between oven chassis and the negative
high terminal of the high voltage capacitor, by
using a properly insulated screw driver to
discharge.
(4) When the 15 Amp. fuse is blown out due to
operation of the monitor switch, replace primary,
secondary, and monitor switch.
Refer to 22~23page for the necessary
adjustment.
(5) After repair or replacement of parts, make sure that the screws are properly tightened, and all electrical
connections are tightened.
(6) Do not operate without cabinet.
CAUTION: Service personnel should remove their watches whenever working close to or repairing
the magnetron.
WARNING: When servicing the appliance, need a care of touching or replacing high potential parts
because of electrical shock or exposing microwave. These parts are as follows – H.V.
Transformer, Magnetron, H.V. Capacitor, H.V. Diode.
Short
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