July 2019
©2019 ACP, Inc.
3
16500066
Component Testing Procedures
Illustration
Component
Test
Results
Transformer
HV Fuse
(Terminal 4)
Discharge Capacitors
Remove all wires from terminals.
Measure resistance from:
Terminal 1 to Terminal 2..................................
Wire 5 to Wire 6 ...............................................
Terminal 4 to Ground screw on transformer...
Terminal 4 to any other terminal ......................
Resistance
2.0 Ω.
Less than 1 Ω.
127
Ω.
Infinite resistance
Continuity
Rated 700ma 5KV
Interlock switch
assembly
Secondary
Interlock
Switch
Monitor
Interlock
Switch
With door open measure resistance from:
Terminal C to NO
Secondary......................
Terminal C to NC
Monitor ...........................
Terminal C to NO
Primary / Logic...............
With door closed measure resistance from:
Terminal C to NO
Secondary......................
Terminal C to NC
Monitor ...........................
Terminal C to NO
Primary / Logic...............
Infinite
Continuity
Infinite
Continuity
Infinite
Continuity
Primary
Interlock
Switch
Wire Harness
Disconnect wires to switch.
Continuity.
Service Mode
To avoid risk of electrical shock, personal injury or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
To Check Magnetron Hours or Door Cycles:
1) Open door and Press/Hold Pad #3 for 5 seconds
or until “SErV” is Displayed
2)
Press Pad #1 to display Magnetron Hours in 100’s.
3)
Press Pad #3 to display Door Cycles in 100’s
