Read this Sanyo EM-SL30 Service Manual carefully, especially precaution on microwave energy, and follow the procedure strictly. Careless servicing and testing may expose yourself to the microwave energy leakage. Do not operate or allow the oven to be operated with the door open. Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs if necessary: Interlock operation, proper door closing, seal and sealing surfaces (arcing, wear, and other damage), damage to or loosening of hinges and latches, evidence of dropping or abuse. 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. 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.
Before the power is applied. Open and close door several times to make sure the primary interlock switch, the door sensing switch, and the interlock monitor switch operate properly. (Listen for the clicking sound from switches). Make sure the interlock monitor switch is closed after the primary interlock switch is opened, when the door is opened. (See pages 1 and 9). Make sure the perforated screen and the dielectric choke of the door are correctly mounted. After the power is applied. Open and close the door to see if the interlock mechanism operates properly. Check microwave energy leakage with a leakage detector and confirm the energy leakage is below 5mW/cm2.
Interlock Switch Replacement - when replacing faulty switches, be sure switch retaining clips are not bent, broken or otherwise deficient in their ability to secure the switches in place. When replacing the door body or door assembly the new door has to be set properly ensuring the correct door gap between door body and cavity front. To set the new door; Mount door loosely on cavity. Before tigthening the top and bottom hinge screws place feeler gauges (the thickness varies for different models- see table below) between the door assembly and the cavity front plate between the top and bottom hinges. NB. Be careful not to scratch the door cover with the feeler gauges. The door should then be aligned with the control base and held firmly in place leaving a gap within 1-2mm. between the door cover and control base.
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