Maytag MXS20 Programming Manual page 70

DIAGNOSE FAILURE 335: FIN-ERROR (COOLING FIN INVERTER OVERHEAT)
If the heatsink temperature of the Frequency Inverter crosses it's max allowed operation temperature, the Inverter will go into
FIN-alarm state.
1. Check if the cooling fan of the Frequency Inverter
(if present) operates normally.
2. Check if the cooling fan in the washer control section,
that takes fresh air to the control environment (if present),
operates normally.
3. Check if the heatsink or the cooling fans are clogged
with dust/dirt, so that fresh air cannot circulate freely.
4. Check if the ambient temperature of the washer is within
the specified limits (see Installation Manual).
FAILURE 500-515: MEMORY ERRORS
If a memory error occurs, something is wrong with the EEPROM. Try to reload the Washing Programs. Check for any source of
electrical "noise."
FAILURE 550: TRACEABILITY WRITE
Failure 550 is a failure of the washer computer internal memory. This failure message appears after a failed attempt to write the Traceability
into the internal memory. Change the CPU control board. (Traceability function can be switched off in the Advanced Menu.)
FAILURE 551: TRACEABILITY FULL
Failure message 551 is displayed if the Traceability data fill up the internal memory of the washer computer. The Traceability data need to
be "cleaned" utilizing a PC software. As a consequence of the failure no data of the wash cycle can be saved. (Traceability function can be
switched off in the Advanced Menu.)
FAILURE 560: USB NOT FOUND
This error message is displayed when an attempt to read from or write on a USB flash disk fails.
FAILURE 561: FILE NOT FOUND
This error message is displayed when the respective file is not found during an attempt to read from a USB flash disk.
FAILURE 562: EXPORT FAILED
This error message is displayed when an attempt to write on a USB flash disk fails.
FAILURE 563: IMPORT FAILED
This error message is displayed when an attempt to read from a USB flash disk fails.
FAILURE 600-628: SOFTWARE ERRORS
Software errors must not occur. If a software error message occurs inform Maytag.
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Replace the cooling fan on the Frequency Inverter.
Replace the control cooling fan.
Clean what is necessary.
Ambient temperature should be within the specified limits.