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Kunft WQP12-9260C - User Manual

Kunft WQP12-9260C
37 pages
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Contents
Technical Service Manual
Dishwasher
Specification 2
Test program 24-28
Theory of parts 5-23
Function Description 3-4
Inspection 29-32
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 33-37
SAFETY NOTICE
This documentation is only intended for qualified technicians
who are aware of the respective safety regulations.
- 1 -
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Summary

Dishwasher Specifications

Electrical Supply

Details the voltage and frequency requirements for the appliance.

Supply Water Pressure

Specifies the acceptable range for water supply pressure.

Supply Water Temperature

Indicates the maximum allowed supply water temperature.

Water Circuit Diagram

Water Circuit Function Description

Process of Water Inlet

Explains the water intake process, including softening and air breaker storage.

Process of Cycle Washing

Details how water is pumped through spray arms during the washing cycle.

Process of Regeneration

Describes the regeneration process involving the softener and resin tank.

Theory of Parts: Component Location

Theory of Parts: Printed Circuit Board (PCB)

Accessing the PCB

Step-by-step instructions for removing the Printed Circuit Board.

PCB Component Identification

Theory of Parts: Inlet Valve

Inlet Valve Work Principle

Explains the electromagnetic operation of the inlet valve.

Inlet Valve Failure Points

Lists common failure modes and associated error codes for the inlet valve.

Inlet Valve Technical Data

Provides specifications such as voltage, resistance, and power for the inlet valve.

Inlet Valve: Access and Inspection

Accessing the Inlet Valve

Step-by-step guide to physically access and remove the inlet valve.

Inspecting the Inlet Valve: Electrical Check

Procedure to test the electrical resistance of the inlet valve.

Inlet Valve: Mechanical Inspection

Checking Machine Part of Inlet Valve

Steps to inspect the mechanical aspects of the inlet valve, including the filter.

Theory of Parts: Drain Pump

Drain Pump Work Principle

Describes the operation of the drain pump, driven by a permanent magnet motor.

Drain Pump Failure Points

Lists common faults and error codes associated with the drain pump.

Drain Pump Technical Data

Provides specifications for the drain pump, including voltage, resistance, and performance.

Drain Pump: Access and Inspection

Accessing the Drain Pump

Step-by-step guide to physically access and remove the drain pump.

Inspecting the Drain Pump: Electric Part

Procedure to test the electrical resistance of the drain pump's motor coil.

Inspecting the Drain Pump: Machine Part

Steps to inspect mechanical issues like the non-return valve and drain hose.

Theory of Parts: Heater

Heater Work Principle

Illustrates the heater's connection with thermostats and pressure switch.

Heater Failure Points

Lists common failure modes and error codes for the heating element.

Heater Technical Data

Provides specifications for the heater, including voltage, power, and thermostat temperatures.

Heater: Access and Inspection

Accessing the Heater

Step-by-step guide to physically access and remove the heating element.

Inspecting the Heater

Procedure to measure the resistance of the heater coil and thermostat.

Theory of Parts: Washing Pump

Washing Pump Work Principle

Explains the asynchronous motor operation with capacitor for the washing pump.

Washing Pump Failure Points

Lists common faults and error codes related to the washing pump.

Washing Pump Technical Data

Provides specifications for the washing pump, including resistance and performance.

Washing Pump: Access and Inspection

Accessing the Washing Pump

Step-by-step guide to physically access and remove the washing pump assembly.

Inspecting the Washing Pump: Electric Part

Procedure to test the electrical resistance of the washing pump's motor coils.

Inspecting the Washing Pump: Machine Part

Steps to inspect mechanical issues like pump assembly looseness or vane wheel.

Theory of Parts: Pressure Switch

Pressure Switch Work Principle

Explains the diaphragm mechanism and its role in water level control.

Theory of Parts: NTC Thermistor

NTC Thermistor Location

Illustrates the NTC thermistor's position within the appliance's sump.

NTC Thermistor Work Principle

Describes the NTC's function in measuring water temperature.

Accessing the NTC Thermistor

Step-by-step guide to access and remove the NTC thermistor.

NTC Thermistor Inspection

Inspecting the NTC Thermistor

Procedure to test the NTC's resistance at various temperatures.

Theory of Parts: Flowmeter

Flowmeter Location

Shows the flowmeter's integration with the air breaker.

Flowmeter Work Principle

Explains how the flowmeter measures water intake using an impeller and pulses.

Flowmeter: Access and Inspection

Accessing the Flowmeter

Step-by-step guide to access the flowmeter by removing the air breaker.

Inspecting the Flowmeter

Procedure to test the flowmeter's electrical pulse output.

Theory of Parts: Safety Hose

Safety Hose Location

Illustrates the placement of electronic and mechanical Aquastop hoses.

Safety Hose Work Principle

Explains the two-layer mechanism and fault detection for both types.

Safety Hose: Access and Inspection

Accessing the Safety Hose

Step-by-step guide to access and remove the safety hose assembly.

Inspecting Electronic Aquastop Hose

Procedure to test electrical resistance of the electronic Aquastop hose.

Inspecting Mechanical Aquastop Hose

Describes potential faults like moisture absorption causing self-lock.

Test Program Introduction

Test Program Activation

Instructions on initiating the diagnostic test program.

Test Program Procedure

Error Code Overview

Identifying Error Codes

Explains how to identify error codes via buzzer alarms and indicator flashes.

Specific Error Code Explanations (E1, E3, E4)

E1: Water Filling Exceed Pre-set Time

Details causes and behavior for E1 error (water filling time).

E3: Heating Exceed Pre-set Time

Details causes and behavior for E3 error (heating time).

E4: Overflow

Details causes and behavior for E4 error (overflow).

Specific Error Code Explanations (E6, E7)

E6: Open-circuit Failure of Thermistor

Details causes and behavior for E6 error (thermistor open circuit).

E7: Short-circuit Failure of Thermistor

Details causes and behavior for E7 error (thermistor short circuit).

Troubleshooting Flowchart: E1 Error

Troubleshooting Flowchart: E3 Error

Troubleshooting Flowchart: E4 Error

Troubleshooting Flowchart: E6 & E7 Errors

Kunft WQP12-9260C Specifications

General IconGeneral
BrandKunft
ModelWQP12-9260C
CategoryDishwasher
LanguageEnglish

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