Safety Precautions - Hotpoint MWH424.1X Service Information

Built in combination microwave ovens electronic with touch & variable control
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SAFETY PRECAUTIONS

This device is to be serviced only by properly qualified service personnel.
Consult the service manual for proper service procedures to assure continued safety operation and for
precautions to be taken to avoid possible exposure to excessive microwave energy.
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
A) Do not operate or allow the oven to be operated with the door open.
B) Make the following safety checks on all ovens to be serviced before activating the magnetron or
other microwave source, and make repairs as necessary; (1) interlock operation, (2) proper door
closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or
loosening of hinges and latches, (5) evidence of dropping or abuse.
C) Before turning on microwave power for any service test or inspection within the microwave
generating compartments, check the magnetron, wave guide or transmission line, and cavity for
proper alignment, integrity, and connections.
D) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave
generation and transmission systems shall be repaired, replaced, or adjusted by procedures
described in this manual before the oven is released to the owner.
E) A microwave leakage check should be performed on each oven prior to release to the owner.
CAUTION
MICROWAVE RADIATION
DO NOT BECOME EXPOSED TO RADIATION FROM THE MICROWAVE GENERATOR OR OTHER
PARTS CONDUCTING MICROWAVE ENERGY.
CAUTIONS
Unlike other appliances, the microwave oven is high-voltage and high-current equipment.
Though it is free from danger in ordinary use, extreme care should be taken during repair.
DO NOT operate on a 2-wire extension cord during repair and use.
NEVER TOUCH any oven components or wiring during operation.
BEFORE TOUCHING any parts of the oven, always disconnect the mains supply.
For about 30 seconds after the oven stops, an electric charge remains in the high voltage
capacitor. When replacing or checking, you must discharge the high voltage capacitor by
connecting a test meter lead fitted with insulated crocodile clips, firstly to the chassis and then to
the capacitor terminals.
Remove your watches whenever working close to or replacing the Magnetron.
DO NOT touch any parts of the control panel circuit. A resulting static electric discharge may
damage this P.C.B.
NEVER operate the oven with no load.
NEVER injure the door seal and front plate of the oven cavity.
NEVER put iron tools on the magnetron.
NEVER put anything into the latch hole and the interlock switches area.
Service Manual UK
25 of 45
English

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