GV 640 Service Manual 11
For internal use only
3.4 Disassembly
Tools required
Special tools for the ring nut on the salt box; cover of the
expansion opening; exhaust air duct; water intake bolts.
1. Drain off water.
• Start up any programme and close the water
tap in order to empty the heat exchanger. The
heat exchanger is emptied.
• Then reset to pump off the rest of the water.
• Remove the remaining water in the pump cavity
with a suction syringe.
2. Remove the mains cable from the appliance
plug by moving it carefully up and down and
pulling it at the same time (do not move it side-
ways!).
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