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Draining - Bosch SRS4002GB Repair Instruction

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Customer complaint
Pump is running audibly, but
conveying no or little water
Pump is buzzing audibly.
Pump is not running
Appliance drains water
briefly, circulates water,
drains water, etc.
58300000002393_ara_en_a.doc – 31.07.07
Filter system blocked
Trap in the inlet spigot (pump sump) dirty.
Non-return flap is stuck in the outlet
Outlet hose blocked
Pump mechanically blocked (blocked or
damaged pump)
See also pump is buzzing or running audibly
Water tap was closed when dry, the heat
exchanger was still empty, the filling switch is
waiting for level
The pump is not activated
Alternate pumping (detergent-solution pump
and circulation pump are actuated alternately)
Remedial action
Advise customer,
see operating instructions for cleaning the filter. Clean the filter.
Advise customer. Clean the trap in the intake spigot of the pump.
Remove non-return flap. Check if valve and seat are dirty and,
if required, clean.
Remove blockage (do not forget the hoses in the appliance),
blockage in the area of the hose connection at the water inlet;
to check, remove both drainage hoses.
Clean pump or, if required,
remove pump
Advise customer, wait for programme sequence and then close
water tap. (Refer to Aqua Stop if featured)
Check pump and actuation (test programme) according to circuit
Follow safety instructions
Advise customer.
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