WHIRLPOOL PRODUCTS DEVELOPMENT LTD. SERVICE MANUAL
Ref no: 58558791 Page 11 of 19
7. MAJOR COMPONENT TESTS
7.1 HV TRANSFORMER
1.
Remove lead wire.
2.
Measure the resistance of the winding using an ohm meter
3.
Primary winding
3 ohm (approx.)
4.
Secondary winding 100 ohm (approx.)
5.
Filament winding
0 ohm (approx.)
7.2 HV CAPACITOR
1.
Remove lead wire
2.
Measure the resistance using an ohm meter set to R*1000
3.
Terminal to terminal should momentary indicates several ohms but
gradually increases to infinite.
4.
Terminal to case should show infinite.
7.3 HV DIODE
1.
Remove lead wire.
2.
Measure forward resistance, normal diode show continuity.
3.
Measure reverse resistance, normal diode show infinite resistance.
7.4 MAGNETRON
1.
Remove lead wire.
2.
Install the magnetron gasket in the correct position. Check that the
gasket is in good condition.
3.
Measure the resistance of the filament terminals. Normal magnetron
should be less than 1 ohm.
4.
Measure the resistance between the filament terminal to chassis. Normal
magnetron should be infinite.
7.5 INTERLOCK SWITCH SYSTEM
Oven door
status
Primary switch
Secondary
switch
Monitor
switch
Open
Open
Open
Close
Close
Close
Close
Open
