RS5320014 Rev. 0
24
Service Test
The high voltage portion of these models contain
multiple H.V. systems.
Each H.V. System contains the following:
• 1 Magnetron
• 1 H.V. Transformer
• 1 Capacitor
• 1 Diode
• 1 Triac
• Connecting wiring
Each H.V. system may be operated independently for
diagnostic purposes.
During this test the display will show a number (usually
between 8 and 24 for each H.V. system operating)
signifying some current draw of the unit.
This is
not showing actual amperage, but a current
reference.
Accessing Service Test Mode
1. Open door and place 1000 ml water load in oven.
NOTE: Perform the following 4 steps within
15 seconds or this procedure will be cancelled.
2. Press
DELETE,
3. Press
1, 3, 5, 7.
4. Close door.
5. Press
DELETE.
NOTE: Pressing
RESET at any time will cause the
control to exit the Service Test.
Initial Display in Service Test Mode
H.V. System Test
When Service Test Mode has been accessed, the H.V.
system test must be started within 60 seconds to
assure accurate test readings. The door must be
closed.
1. Press pad
1 to activate H.V. System # 1.
• The triac drive will be activated after a minimum of
100 milliseconds.
• A 62 seconds full power cook cycle will begin for
the selected H.V. system.
Display with H.V. System # 1 Activated
2. Press pad
1 again to de-activate H.V. System # 1.
3. Press pad
2 to activate H.V. System # 2.
4. Press pad
2 again to de-activate H.V. System # 2.
5. Press pad
3 to activate H.V. System # 3.
6. Press pad
3 again to de-activate H.V. System # 3.
Diagnosing Individual H.V. System
Components
If the service test indicates a non-functional H.V. system,
proceed as follows:
1. Identify the number of the H.V. system that is not
functioning and the corresponding magnetron
location.
MENU 1 = Bottom magnetron
MENU 2 = Top rear magnetron
MENU 3 = Top front magnetron
NOTE: Component numbering in the wiring/schematic
diagrams may not match the numbering of
MENU 1, MENU 2 or MENU 3 display
indicators.
2. Using the wiring diagram, identify the location of
components numbered the same as the non-
functioning magnetron. H.V. components with the
same number are part of the same H.V. system.
Indicates Power Relays
are closed for the
Service Mode Test
Current
reference
Indicates Voltage
is Greater than
218 VAC
H.V. System 2
H.V. System 3
Amount of Time
H.V. System Will Operate
H.V. System 1
Current
reference
POWER
