Maytag MXS20 Programming Manual page 59

FAILURE 13: HEATING FAILURE
If the heater elements are not functioning: message 13 will be displayed. The message is generated when the temperature is not raising 37°F
(3°C) 10 minutes time.
DIAGNOSE:
1. Check if the heating contactor is activated.
2. Check if the heating elements are heating.
3. Check if the temperature sensor is functioning.
4. Check the output relay that powers the heating contactor.
FAILURE 14: HEATING TIME FAILURE
When after X minutes the target temperature is not reached (in a washer set as wait for heat): Message 14 will be displayed.
X = the programmed Max heating time in the Initialization Menu.
DIAGNOSE:
1. Check if the programmed Max Heating time
in the Initialization Menu is acceptable.
2. Check if the heating resistors are heating.
3. Check the water temperature.
4. Check if the temperature sensor is functioning.
FAILURE 15: TOO HOT
When the water temperature is 59°F (15°C) above the target temperature: message 15 will be displayed. For evaluation
of the problem, you can follow the temperature of the wash water on the display of the control by pressing the Service button
on the keypad.
DIAGNOSE:
1. Check if correct water inlet valves have been programmed.
If only hot water inlet valves have been programmed, and
if the hot water supply has a temperature value above the
programmed Wash Sequence value then the temperature
of the wash water will be too high.
2. Check if the correct water inlet valves are functional. If the
cold water inlet valves are not functional or if the main cold
water supply is not available and only hot water inlet valves
are open, and if the hot water supply has a temperature
value above the programmed Wash Sequence value,
the temperature of the wash water will be too high.
3. Check the water temperature.
4. Check if the temperature sensor is functioning.
5. Check if the heating contactor stays closed.
(Check voltage to contactor coil.)
6. Check the output relay that powers the heating contactor.
7. Check the output relay that powers the heating contactor.
If the heating contactor is not activated, repair the wiring or
replace the contactor.
If the heating elements are not heating, repair the wiring
or replace the defective heater elements.
If the temperature sensor is defective, replace the
temperature sensor.
If the relay is broken, replace the washer computer.
If the washer has a small heating capacity, increase the value
of the Max heating time.
The default is 60 minutes (for washers with large heating
capacity).
If the heating resistors are not heating, repair the wiring
or replace the defective heater elements.
If the hot water supply temperature is too low, increase the
temperature of the hot water.
If the temperature sensor is defective, replace the
temperature sensor.
Choose the correct water inlet valves for the Wash Sequence
when you create or adjust the parameters of the wash
program. Do not program only hot water inlet valves but
also cold ones!
See diagnostics Failure 11, Fill Failure.
If the temperature of the supplied hot water is too high,
decrease the temperature at the water heater.
If the temperature sensor is defective, replace the
temperature sensor.
Auxillary heated units only. If the heating contactor stays closed,
replace the heating contactor.
If the relay stays closed, the relay is broken; replace the power
board.
If the relay is not broken, but receives a "not allowed" signal from
the washer computer, replace the computer.
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