Read Sharp R-28STM Service Manual online
SAFETY CHECKS AND TESTS AFTER SERVING
Constructional Checks
If mechanical or electrical(electronic) parts have been replaced be sure to follow the following steps.
1.1
Check for correct wiring, adequate mechanical decrements of parts, and firm connectors.
1.2
Check for adequate grounding.
1.3
Check the following items before turning the oven ON.
1)
Proper door closing, seal/choke surfaces, and hinges.
2)
No outer case damage.
3)
Proper interlock and monitor operations.
Insulation Resistance Test
If the low voltage power supply has been repaired, use a 500 V Mega ohmmeter to measure the resistance between the
primary(Line and Neutral)of the power plug and operator accessible metal parts. The resistance should be no less than 2 Mega
Ohms. Repair the oven again when necessary.
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