Miele G2000 Technical Information page 215

G1000 / G2000 Dishwashers
d. Check if circulation pump is defective by performing the following
steps:
1. Open the dishwasher door and insert your Miele bypass tool
2. Turn on the dishwasher and select a wash program.
3. After the 30 sec. draining step, pay attention to the lower spray
Warning!
Keep your hands on the door handle as you perform this test. If you see
water begin 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 unit. If this is not
done, there is the danger of water spraying out of the dishwasher.
•
If you see the water flow 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.
•
If you see no water continue with the next step.
4. Check the power supply to the circulation pump.
5. Check the circulation pump capacitor.
6. Check the circulation pump intake for blockage. Clean it as necessary. Check the
hose connections.
7. Check the circulation pump housing for foreign objects by performing the
following steps:
a. Remove the bottom drip pan.
b. Remove the circulation pump (5.4.14).
8. Remove the circulation pump housing cap (5.4.15.1).
9. Check inner housing for blockage.
10. Replace the circulation pump if necessary (5.4.14).
11. Check the heater pressure switch for proper operation by performing the
following steps:
a. Check connection plugs and wiring harness for damage, corrosion
or loose connection.
b. Enter the service mode and select component test.
c. Select wash sequence with heating (R1,Y2,M6).
d. Provide access to the control electronic board.
e. Using a multi meter, place the probes onto the heater pressure
switch sensing leads off of connector ST5 on the electronic board.
During circulation pump operation you should read no voltage at
these points.
•
into the latching mechanism.
arm. As water enters the cabinet the circulation pump should
be operating, increasing the water flow pressure. You should
begin to see a small flow of water coming out of the lower
spray arm.
If 120 VAC is measured, replace the heater pressure switch (5.4.15.7).
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Technical Information