Control Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
© 2005 Maytag Services
16026784
17
Diagnostic Code Checking
Code Description
When
Checked
Detection
1c1c
Shorted key
Always
1 minute
1c31
Cancel key circuit problem
Always
1 minute
1c4c
Micro communication failure
Serial communications
5 tries
1c5c
Vcc or ground
Cook or clean active
1 minute
1c6c
EEPROM error
Cook or clean active
5 tries
1c7c
Control not calibrated
Always
5 seconds
1c8c
Cooking program error
Cook or clean active
5 tries
1d11
Runaway temp (650° F), door unlocked
Latch unlocked
5 seconds
1d21
Runaway temp (950° F), door locked
Latch locked
5 seconds
3d11
Sensor open
Cook or clean active
5 seconds
3d21
Sensor shorted
Cook or clean active
5 seconds
4d11
Door position switch not closed when door locked
Clean active
1 minute
4d51
Door switch circuit failure-neither open or closed
Always
1 minute
9d11
Latch will not lock
Latch should be locked
1 minute
9d21
Latch will not unlock
Latch should be unlocked
1 minute
9d31
Unlock state unknown, both locked and unlocked
Always
1 minute
9d41
Unlock state unknown, neither locked or unlocked
Always
1 minute
Diagnostic Code Handling
Code
Measurable
Displayed
Action Taken By Control
1c1c Keypress
Nothing
Disables audible for key depression
Disables key
1c31
Cancel key improper value
Nothing
Disables all outputs
1
1c4c
Checksum invalid
Nothing
Disables all outputs
1
1c5c
Vcc/Gnd at test point
Nothing
No action
1c6c
No response from EEPROM
Nothing
Disables all outputs
1
1c7c
Calibration value out of range
Nothing
No action
1c8c
CRC invalid
Nothing
Cancels active cook functions
1d11
Sensor resistance > 2293 Ohms
Nothing
Disables all outputs
1d21
Sensor resistance > 2662 Ohms
Nothing
Disables all outputs
3d11
Sensor resistance > Infinite Ohms
BAKE flashes
2
Disables all cook functions for cavity
3d21
Sensor resistance > 0 Ohms
BAKE flashes
2
Disables all cook functions for cavity
4d11
Door switch not closed when door locked
Nothing
Disables Clean function
4
4d51
Door switch not open or closed
LOCK flashes
2
Disables Clean function
3, 4
9d11
Lock switch not closed (Clean activated)
LOCK flashes
2
Ignore soil level selection, disables clean
5
9d21
Lock switch closed (Clean not activated)
LOCK on steady Disables cooking functions
5
9d31
Unlock switch both locked and unlocked
Nothing
No action
5
9d41
Unlock switch neither locked or unlocked
Nothing
No action
5
9d51
Lock switch not locked or unlocked
Nothing
Disables Clean function
5
Содержание MER5551BA - 30'' Electric Range
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