Amana Menumaster RC5PHBU2 - Component Testing Procedures; Testing Transformers, Interlock Switches, and Relays; Testing Filters, Terminal Blocks, and Power Cords

Component Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
©2005 Maytag Services 16022149
15
Refer to Technical Sheets for specific model information.
Illustration Component Test Results
4
COM
230 V
5
6
Transformer
4
COM
230 VAC
5
6
Discharge Capacitor
Remove all wires from terminals.
Measure resistance from:
230 to COM.............................................
230 to Ground .........................................
Terminal 5 to 6 ........................................
Terminal 4 to Ground ..............................
Less than 1 Ω
Infinite
Less than 1 Ω
Approximately 65 Ω
4
COM
230
220
5
6
Transformer
4
COM
230 VAC
5
6
TCO
220 VAC
Discharge Capacitor
Remove all wires from terminals.
Measure resistance from:
230 to COM.............................................
208 to COM.............................................
230 to Ground .........................................
208 to Ground .........................................
Terminal 5 to 6 ........................................
Terminal 4 to Ground ..............................
Less than 1 Ω
Less than 1 Ω
Infinite
Infinite
Less than 1 Ω
Approximately 70 Ω
7
8
2
4
3
5
Interlock switch
Door Closed
2
4
7
3
5
8
Primary
Secondary
Monitor
Disconnect wires to switch.
With door open measure resistance from:
Terminal 2 to 3 ........................................
Terminal 4 to 5 ........................................
Terminal 7 to 8 ........................................
With door closed measure resistance from:
Terminal 2 to 3 ........................................
Terminal 4 to 5 ........................................
Terminal 7 to 8 ........................................
Infinite
Infinite
Indicates continuity
Indicates continuity
Indicates continuity
Infinite
Lamp receptacle
(some models)
Test continuity of receptacle terminals. Indicates continuity if bulb is good
and screwed in.
Antenna motor Remove all wires from terminals.
Measure resistance from:
Terminal to terminal ....................................
Approximately 12K Ω
01
24
68
Relay
This relay contains a
diode in the coil
circuit.
Measure resistance from:
Terminal 0 to terminal 1 (coil)..................
01
24
6
8
Approximately 6 to 7 MΩ
NOTE: Analog meter is
recommended for measurement.
NOTE: If using a digital meter it must
contain a battery of 6 volts minimum.
Black
White
Brown
Blue
Line filter
Disconnect wire from terminals.
Measure resistance of the following
terminals:
White to Blue..........................................
Black to Brown .......................................
< 1 Ω
< 1 Ω
Terminal block Visual check. Verify fuse holding terminals are not
damaged.
Verify terminals are not damaged.
Refer to Parts Manual
for proper power cord
part number.
Power cord Measure resistance of wires. Continuity should be indicated on
each wire.
Verify polarity and grounding.