Technical Information
134
G 5xxx
Cause:
Circulation pump inoperative. Circulation pressure too low (no pressure at
heater pressure switch). Pump may be blocked by foreign objects.
Remedy:
1. Check the circulation pump for foreign objects by performing the following
steps:
a. Remove the drip pan (Section 010-4.2).
b. Remove the circulation pump (Section 050-4.13).
c. Remove the circulation pump housing cap (Section 050-4.14).
d. Check the inner housing for blockages. Clean as necessary.
2. Check the pump’s hose connections.
3. Check the circulation pump capacitor.
4. Check the circulation pump power supply.
5. Replace the circulation pump, if necessary.
Cause:
Flow meter B3/4 defective (incorrect water quantity registered).
Remedy:
1. Check that the plate with the reed switch on the flow meter is seated correctly.
2. Check that the reed switch connection plug is seated correctly.
3. Replace the reed switch, if necessary (Section 050-4.7).
4. Check the control lead from the electronic to flow meter B3/4.
5. Remove the water diverter and replace if necessary. See Section 050-4.12.
Cause:
Circulation pump winding overheated; winding protection has cut out.
Remedy:
Replace the circulation pump. See Section 050-4.13.
Cause:
After a water intake step, heater pressure switch B1/13 has not opened
switching steps 11–12 and 21–22. This causes the anti-stiction routine to be
started.
Remedy:
Check the heater pressure switch for proper operation by performing the
following steps:
1. Check connection plugs and wiring harness for damage, corrosion or
loose connection.
2. Access service mode (see the separate service mode guide) and select the
component test menu.
3. Select the first test, wash sequence with heating (R1, Y63, M6).
4. Access the control electronic.
5. Using a multimeter, place the probes onto the heater pressure switch sensing
leads off of connector ST5 on the electronic board. During circulation pump
operation no voltage should be read at these points. If 120VAC is measured,
replace the heater pressure switch (Section 050-4.16).
Cause:
Circulation pump capacitor defective.
Содержание Classic G 4205
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Страница 32: ...Technical Information 32 G 5xxx 010 Casing ...
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Страница 57: ...Technical Information 57 G 5xxx Figure 020 19 Drive ...
Страница 58: ...Technical Information 58 G 5xxx 030 Front Panel ...
Страница 63: ...Technical Information 63 G 5xxx Figure 030 7 Interference Suppression Capacitor and Ground Wire ...
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Страница 73: ...Technical Information 73 G 5xxx 050 Water Paths ...
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