Fault Code F69: Circulation Pump Blocked; Fault Code F70: Float Switch Fault - Miele G 4205 Technical Information

G 5xxx
speed signal from the electronic, so a target speed is set.
Cause:
Electronic defective.
Remedy:
Replace the electronic. See Section 100-4.5 or 100-4.6.
3.32

Fault Code F69: Circulation Pump Blocked

Symptom:
The program is interrupted and the drain pump is operated.
With the circulation pump operating, the heater pressure switch contacts are
checked. For this, the heater relay must have been activated and both
electronic's inputs must be potential-free.
Cause:
Heater pressure switch defective.
Remedy:
Replace the heater pressure switch. See Section 050-4.16.
Cause:
Heater relay defective.
Remedy:
Replace the heater relay. See Section 050-4.10.
Cause:
Circulation pressure too low because circulation pump is blocked by foreign
objects.
Remedy:
Remove and clean the circulation pump (Section 050-4.13) and remove any
foreign objects that may be present.
3.33

Fault Code F70: Float Switch Fault

Symptom:
After the float switch has switched, the program is interrupted and the drain
pump is operated.
Note:
The drain pump continues to operate even after the machine has been
switched off. The drain pump can only be deactivated by disconnecting the
power supply connection.
Cause:
Water in the drip pan. Changeover contact of overflow float switch B8/3
closed from 1 to 4 (refer to the wiring diagram).
Remedy:
1. Remove the water from the drip pan (e.g., with an absorbent cloth).
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Technical Information