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FOR SERVICE TECHNICIAN'S USE ONLY
IMPORTANT: You must run an Auto Test before performing any other diagnostics. Refer to steps 1 through 4 in the following chart to run Auto Test.
Press CANCEL at any time to exit.
NOTE: On models with a numeric keypad on the control, press the "3" key instead of the "up" arrow or "+" (plus) keypad. Press the "6" key instead of
the "down" arrow or "-" (minus) keypad. On some models, press the OFF keypad if there is not a CANCEL keypad.
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1
C
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>
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2
Press the "up" arrow, the "+" (plus) key or the "3" key to scroll through the
service modes to Auto Test.
3
Follow the display prompts to run Auto Test to observe the following results:
Result #1 - Do not replace the control.
Result #2 - Tests completed with failure/fault co
4
Press CANCEL to exit. Refer to the "Failure/Error Display Codes" section to
correct.
Press CANCEL>CANCEL>START to enter Service Mode.
NOTE: On models with a numeric keypad on the control, press the "3" key instead of the "up" arrow or "+" (plus) keypad. Press the "6" key instead of
the "down" arrow or "-" (minus) keypad. On some models, press the OFF keypad if there is not a CANCEL keypad.
Step
Service Mode
Upon
TEST ON
entry
1
USAGE
2
ENG MODE
3
TEST MODE
4
VERSION
5
DISPLAY
6
CONTROL RESET
7
FAULTS
8
RELAY USAGE
9
AUTO TEST
Diagnostics Mode for MRC Control
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Service Modes for MRC Control
Service Mode Description
Perform relay checks. See the "Relay Checks for MRC Control" section. Press the key that is listed in the "Key
Press" column for the desired function and display. Display shows oven temperature from oven temperature sensor
and door position (0-closed, 1-open).
Displays the usage time in hours for several range functions.
Press START to enter, and then press the "+" keypad. Press START again, and the display will show the temperature
of the oven sensor. Press the TIMER SET/OFF keypad to scroll between the oven sensor temperature, the warming
drawer sensor temperature and the control board sensor temperature. Press CANCEL twice at any time to exit.
Perform relay checks. See the "Relay Checks for MRC Control" section. Press the key that is listed in the "Key
Press" column for the desired function.
Displays software version.
Displays all MRC control LEDs.
DO NOT USE this Service Mode - for Engineering Use Only.
Displays the most recent fault code. The last 10 faults are stored and may be cleared by following the prompts. Clear
faults as directed by pressing START TIME or DELAY START.
Displays the usage time in hours for several range functions.
Automatic diagnostics mode that must be run before performing any other diagnostic or before replacing the control.
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"UO" = Oven door closed or "UI" = Oven door open
"AUTO TEST"
"Control is GOOD, no faults found"
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NOTE: Failures are problems within the control. Faults are
problems beyond the control (for example, "0 Failures and
2 Faults found - Control is good." There is a problem with a
wiring harness, wiring connection or component outside the
control).
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cavity temperature and door position,
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