Maytag MXS20 Programming Manual page 60

FAILURE 21: OVERFLOW FAILURE
When the water level is raising above the hole of the maximum limit: message 21 will be displayed.
DIAGNOSE:
1. Check if the overflow hole and tube is not blocked.
2. Check if the drain tube is not blocked.
3. Check the water inlet valves.
4. Check the output relay that powers the water inlet valve.
FAILURE 24: DEFECTIVE LEVEL SENSOR
If the level sensor is broken, fault 24 will be displayed. The fault is only generated when the washer is in standby mode and No Wash cycle
is running. The fault can only be erased by switching off and on the power.
DIAGNOSE:
1. Check the level sensor visually.
2. If the fault is persistent.
FAILURE 25: DEFECTIVE TEMPERATURE SENSOR
When the temperature sensor is broken, fault 25 will be displayed. The fault is only generated when the washer is in standby mode and
No Wash cycle is running. The fault can only be erased when the temperature drops under 131°F (55°C). If the fault is still present after
switching on the power, fault 25 will be displayed again.
DIAGNOSE:
1. Check if the temperature sensor is connected on the
Control Board.
2. Check the temperature sensor.
3. Measure the resistance of the sensor.
4. Check if the earth wire is at the middle position of the
connector.
5. Check the Control Board visually.
6. If the fault is persistent.
FAILURE 26: UNDEFINED MITSUBISHI FREQUENCY INVERTER ERROR CODE
Occurs if the Inverter gives an error message which is not recognized by the washer computer. Updating the washer computer software
might help discover what Inverter error code really occurred. Inform Maytag.
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If the overflow tube is blocked, repair the tube.
If the drain tube is blocked, repair the drain tube.
If a water inlet valve is broken, replace the water inlet valve.
If the relay stays closed, the relay is broken; replace the
washer computer.
If you see some damage, replace the washer computer.
Replace the washer computer. (Be sure there is no drain
problem.)
The Female connector must be connected with the Male
connector T of the Control Board.
If the temperature sensor is broken, replace the temperature
sensor.
If the resistance is not OK, replace the temperature sensor.
If the earth wire is not at the middle position, put the earth wire
in the middle position of connector T.
If you see some damage, replace the washer computer.
Replace the washer computer.
Be sure that the problem is related to the Control Board and not
to a defective temperature sensor.