Fault Code F14: Water Intake Fault: Heater Pressure Switch - Miele G 4205 Technical Information

G 5xxx
electronic board to electrical connector. Replace and repair as necessary.
See Section 100-4.5 or 100-4.6.
3.14

Fault Code F14: Water Intake Fault: Heater Pressure Switch

Symptom:
The program is interrupted and the drain pump is operated.
Background information: With the circulation pump operating after a water
intake step, the heater pressure switch is checked to ensure that sufficient
water pressure exists in the wash water circuit. For this the heater relay must
have been activated.
Cause:
During a heating step the heater pressure switch may have registered no or
insufficient water pressure at the circulation pump.
Remedy:
1. Check the dispensing of detergent and rinse aid. Excessive foam
development means that the pressure at the heater pressure switch will
be reduced.
2. Check for correct water level within the machine (water level should be
just under the filter arm). See Section 050-4.29.
3. Check all filters for blockages.
4. Check if the circulation pump is defective by performing the following steps:
a. Open the dishwasher door and insert the yellow bypass tool into the
latching mechanism.
b. Turn on the dishwasher and select and start a wash program.
c. After the 30-second drain step, pay attention to the lower spray arm.
As water enters the cabinet the circulation pump should be operating,
increasing the water flow pressure. There should be a small stream of
water coming out of the lower spray arm.
Warning!
Keep both hands on the door handle while performing this test. If water
begins to flow out of the lower spray arm, press the door handle to pop
the bypass tool out of the door lock and shut off the machine. If this is
not done, there is the danger of water spraying out of the dishwasher.
d. If water is flowing out of the spray arm, the circulation pump is
operating and there is no blockage. Press the door handle to pop the
bypass tool out of the door lock.
e. If there is no water, continue troubleshooting.
Cause:
Heater pressure switch B1/13 defective or blocked by foreign objects.
Remedy:
1. Check the heater pressure switch.
2. Check the connection plug and wiring harness.
3. Replace the heater pressure switch, if necessary. See Section 050-4.16.
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Technical Information