Maytag MXS20 Programming Manual page 58

FAILURE 9: DOOR LOCK OPENING FAILURE AT END OF CYCLE
At the end of the cycle the Door Lock coil is switched off and the door lock switch must open its contact. If within 3 minutes the door lock
switch does not change state, Failure Message 9 will be displayed. As long the contact stays closed, Failure Message 9 remains on the
display. If the contact should change state, the error message will be removed from the display and washer will be ready for use again.
DIAGNOSE:
1. Check the functioning of the "DOOR LOCK CLOSING
SWITCH."
2. Check the continuity of the wiring.
3. Check (in the programmer device) the correct function of door
locking and unlocking outputs and also of the input into the
switch for locking the door.
FAILURE 11: FILL FAILURE
Failure 11 occurs when the water level has not reached its target level in X minutes.
x = Max fill time, a value that can be programmed at the Initialization Menu.
ATTENTION !!!: The rubber hose must be fixed with a fastener on the Electronic Water Level Sensor.
DIAGNOSE:
1. Check if the programmed Max fill time in the Initialization
Menu is acceptable.
2. Check if the external water valves are open.
3. Check if the water inlet valves are not blocked by dirt.
4. Check the coil of the water inlet valves.
5. Check the drain valve.
6. Check if the rubber hose (for measuring the water level)
is well mounted on the electronic level sensor and on the
drain valve.
7. Check if the hose on the electronic sensor is air tight.
8. Check if the hose does not contain water (works as a siphon).
9. Check the continuity of the wiring.
10. Check the output relay that powers inlet valves and the drain
valve.
FAILURE 12: OVERFILL FAILURE
If the target water level is X units above the target level then Failure Message 12 will be displayed. The Fault Message will not be generated
when the user is advancing from a sequence with a high water level to a sequence with a low water level.
X= "Max. level Overfill", a value that can be programmed at the Initialization Menu.
DIAGNOSE:
1. Check if the water inlet valves are broken.
2. Check if the water pressure is too high.
3. Check the output relay that powers the inlet valve.
In Case of Steam Heating:
If the steam is not enough, it will have little heating power and the washer will be filled with too much water during steam heat segments.
This will result in an increased water, energy and supply consumption. It is strongly recommended that the heating installation works with
enough system power. A simple solution can also be to reduce the programmed target water level. As less steam will be required, the
normal water level should be reached. In the Initialization Menu it is also possible to adjust the alarm level to avoid the error message.
(= not recommended)
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If the door lock closing switch is broken or does not function
correctly, replace the door lock closing switch.
If the wiring is not continuous, repair the wiring.
Replace the switch or the programmer device based on the
result of output/input inspection above.
If the water flow is very slow, increase the value for the Max fill
time. The default value is 10 minutes.
If the water valves are closed, open the water inlet valves.
If the water inlet valves are blocked by dirt, clean the water inlet
valves or replace the water inlet valves.
If the coil of the water inlet valve is electric open, replace the coil
or the complete water inlet valve.
If the drain valve is defective, replace the drain valve.
If the hose is not well mounted, install the rubber hose
properly.
If the air hose is not air tight, replace the air tube. With
a fastener, you can make the hose air tight at the level
sensor.
If the air tube contains water, remove the water and fix the hose
so that it does not work as a siphon.
If the wiring is not continuous, repair the wiring.
If the relay receives a command signal but is not closed,
replace the wash computer.
If the water inlet valves are broken, clean or replace the water
inlet valve diaphragms.
Lower the water pressure.
If the relay stays closed, the relay is broken, replace the
washer computer.