Delfa WQP12-9242B Operating manual

Contents
Technical Service Manual
Dishwasher
Specification 2
Test program 24-28
Theory of parts 5-23
Function Description 3-4
Inspection 29-33
Location 5
PCB 6-7
Inlet valve 8-10
Drain pump 11-12
Heater 13-14
Washing pump 15-16
Procedure 25
Error code 26-28
Water circuit 3-4
Pressure switch 17
NTC 18-19
Flowmeter 20-21
Safety Hose 22-23
Troubleshooting 34-38
SAFETY NOTICE
This documentation is only intended for qualified technicians
who are aware of the respective safety regulations.
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Specifications
For the basic operation instructions, please refer to the
instruction manual attached with each unit.
Electrical supply 220-240V, 50Hz
Supply water pressure 0.04MPa-1.0MPa
Supply water temperature below 60℃
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Models:WQP12-9242B WQP8-9241B

washing pump
pressure switch
drain pumb
drain hose
over flow switch
air breaker
inlet valve
inlet hose
Regeneration water route
upper spray arm
top spray tube
Inlet water route
lower spray arm
softener
Water circuit scheme
regeneration valve
Cycle water route
Drain water route
Water Circuit Function Description->
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Process of water inlet (indicated by magenta route)
In this process, regeneration water route is cut off, main water route is open. The water in the main water
route is softened when pass through the softener, and then enter in the tub. During this phase, some of inlet
water will be stored in the air breaker to be regenerating water.
Process of cycle washing (indicated by blue route)
Cycle washing action is driven by washing pump motor. Water can obtain the power during it passing through
the working washing pump, then be pumped into spray arm, pass from spray arm nozzles, over the dishes,
into sump ,where connect to washing pump, and to get in the next water cycle.
Process of regeneration (indicated by green route)
Regeneration valve is open, the regenerating water dissolve salt in the salt chamber of softener, and then
enter in the resin tank to reactivate the resin.
Water Circuit Function Description->
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Location Theory of parts->
Inlet valve
Washing pump
Capacity Softener Overflow switch
Filter system
Heater
Over Heat Proof
Micro-switch
Dispenser
Sump
Water inlet
Air breaker
Pressure switch(83/63)
(only for models whose water filling
be controlled by pressure switch)
Pressure switch(140/120)
Please Note: Exploded view and part list of each model have some different visions, so
please refer to newest vision Midea sent you.
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