Fisher & Paykel WH70F60W1 - User Manual

FRONT LOADING WASHING
MACHINE
AWF60MD, WH60F60W1,
WH70F60W1
479607
Fisher & Paykel Appliances © 2010

Summary

SPECIFICATIONS

Electric Supply

Details on voltage, frequency, power consumption, and fuse rating.

Capacity

Maximum load capacities for various fabric types and wash programs.

Door Lock

Information on lock time, unlock time, voltage, and current.

Heating Element (Double thermosfuse)

Resistance, voltage, wattage, and NTC resistance of the heating element.

NTC

Resistance specification for the NTC sensor at 25°C.

Water Valves

Pressure range and continuity check for water inlet valves.

Drain Pump

Nominal voltage, wattage, flow rate, and continuity check for the drain pump.

Motor

Type, Tacho Resistance, Wash Wattage, Spin Wattage, and resistance details.

FUNCTIONAL TEST PROGRAM

Functional Test Program 1

Steps to enter and execute the first functional test program, including sequence.

Functional Test Program 2

Functional Test Program 2

Steps to enter and execute the second functional test program, including sequence.

HEATER TESTING

Diagnostics

Prewash LED flashing

Fault related to control module, requiring replacement.

Main Wash LED flashing

Likely cause is a component failure.

Rinse LED flashing

Refer to "No Water" flowchart for rectification.

Conditioner LED flashing

Refer to "Unable to select a program" flowchart.

Service Mode

FAULT CODES

H1: NTC Open or Short Circuit

NTC sensor failure causing no heat; error code occurs.

H2: Heater Open Circuit

Heater open circuit causing no heat; error code occurs.

H3: Heater Always On

Fault requiring replacement of the control module.

H4: Valve Triac Short Circuit

Fault requiring replacement of the control module.

H5: Pump Open Circuit; Blocked

Describes conditions leading to pump failure or blockage.

H6: Wash Motor Triac Short Circuit

Motor triac short circuit affecting spin and drain functions.

H7: Pressure Sensor Failure

Failure of the pressure sensor leading to potential water level issues.

H11: Motor; Tacho Open Circuit

Motor or tacho open circuit preventing motor operation.

Flow Chart 1. Washing Machine Does Not Work

Check front panel LEDs and connection

Troubleshooting steps for unresponsive front panel LEDs.

Check door lock switch and cable continuity

Verifying door lock switch and cable connections for proper function.

Check program selector and main PCB connections

Inspecting program selector and main PCB connections for issues.

Check power cable and main fuses

Verifying power cable and main fuses for electrical supply problems.

2. Washing Machine Doesnt Work (After Filling Step Is Performed)

Measure Motor coil resistance

Checking motor coil resistance values against specifications.

Check tacho magnet and AC voltage

Verifying tacho magnet function and AC voltage generation.

Check KN9 socket pins and aqua stop switch

Inspecting socket pins and aqua stop switch for proper contact and function.

3. Washing Machine Takes Water from Wrong Compartment of Detergent Drawer

Check valve connections

Verifying correct wiring of the water inlet valves.

Reconnect cables properly or change Main PCB

Rectifying connection errors or replacing the main PCB.

4. No Heat

Ensure NTC socket and pressure sensor hose are clear

Checking NTC socket and sensor hose for blockages or damage.

Measure NTC resistance

Testing NTC resistance at ambient temperature for accuracy.

Measure heater resistance

Checking heater resistance to ensure it's within the specified range.

5. Not Draining

Check pump motor and filter

Verifying pump motor operation and cleaning the pump filter.

Check drain hose and continuity

Inspecting drain hose condition and pump terminal continuity.

6. Unable to select a program

Check program selector resistance

Measuring program selector resistance against the provided list.

Check program selector and main board connections

Verifying connections between the program selector and the main board.

7. Spinning When Washing

Check motor coil resistance and tacho

Measuring motor coil resistance and verifying tacho functionality.

Check tacho magnet and AC voltage

Inspecting tacho magnet and measuring generated AC voltage.

8. No Water

Check taps, filter, and valve connections

Verifying tap status, filter condition, and valve wiring.

Check 220 V supply to valves

Measuring 220V supply at the main PCB and valves for operation.

9. LED Blinking

Check Conditioner LED blinking

Refer to "Not able to select any program" for this failure.

Check Rinse LED blinking

Refer to "No Water" page for this failure.

Check Main Wash LED blinking

Component malfunction, requires Service Mode and fault code check.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

This document is a service manual for Fisher & Paykel front-loading washing machines, specifically models AWF60MD, WH60F60W1, and WH70F60W1. It provides detailed specifications, functional test programs, heater testing procedures, diagnostic information, service mode instructions, fault codes, and flowcharts for troubleshooting common issues.

Function Description

The document outlines the operation of the washing machine through various functional tests and diagnostic procedures. It covers the basic washing cycles, motor operations (wash and spin), water filling (prewash, main wash, softener, hot water), heating element activation, and drain pump function. The service mode allows technicians to access fault codes and perform specific tests to diagnose problems.

Important Technical Specifications

Electric Supply:

• Voltage: 220 - 240V
• Frequency: 50Hz
• Power Consumption: 2.2kW – 2.6kW
• Fuse Rating: 10A

Capacity: The washing machines come in two main capacity variants:

• AWF60MD/WH60F60W1:
  • Cotton: 6kg
  • Daily: 3.5kg
  • Synthetic: 3kg
  • Quick wash: 2.5kg
  • Delicates: 2kg
  • Wool: 1.5kg
  • Hand wash: 1kg
• WH70F60W1:
  • Cotton: 7kg
  • Daily: 3.5kg
  • Synthetic: 3kg
  • Quick wash: 2.5kg
  • Delicates: 2kg
  • Wool: 1.5kg
  • Hand wash: 1kg

Door Lock:

• Lock Time (Maximum): 6 seconds @20°C
• Unlock Time After 600 Seconds on: 60-90 seconds @20°C
• Nominal Voltage: 230V
• Nominal Current: 10mA

Heating Element (Double Thermosfuse):

• Resistance: 25Ω @ 25°C
• Nominal Voltage: 230V
• Nominal Wattage: 1950W
• NTC Resistance: 4.7KΩ

NTC (Negative Temperature Coefficient) Sensor:

• Resistance: 4.7Ω @ 25°C

Water Valves:

• Pressure Range: 30kPa (4.35PSI) – 1000kPa (145PSI)
• Continuity check is recommended for "No Water" issues.

Drain Pump:

• Nominal Voltage: 230V
• Nominal Wattage: 35W
• Flow Rate: 15 litres/minute
• Continuity check is recommended for "Not Draining" issues.

Motor:

• Type: Single Phase, UM/AC
• Tacho Resistance: 54Ω
• Wash Wattage: 720W
• Spin Wattage: 350W
• Resistance check is recommended for "Machine Doesn't Work" issues.

Usage Features

The manual details two functional test programs (Program 1 and Program 2) for diagnostic purposes. Functional Test Program 1 (for models produced before August 2006):

1. Entry: Ensure machine is on at the power point, off on display, and On/Off button is in the Off position. Select "Cotton 90°C" with the program selector knob. Press and hold Start/Pause, then press On/Off once, keeping Start/Pause held for an additional four seconds. "-- --" will be displayed to confirm entry.
2. Sequence: Press Start/Pause to advance through steps. Press On/Off to exit/cancel.
   • LED check (all LEDs blink)
   • Prewash (Cold) fill
   • Main wash (Cold) fill
   • Softener (Cold) fill
   • Main wash (Hot) fill
   • Heater Element activation (fills with hot/cold water if level is low)
   • Motor (CW) rotation at 52 RPM
   • Motor (CCW) rotation at 52 RPM
   • Drain Pump activation
   • Spinning to 1000 RPM (recommended to terminate here; further steps are for production testing)

Functional Test Program 2 (for software version 6038 and later):

1. Entry: Similar to Program 1, but "----" will be displayed after the door is locked. The door lock activates at this stage. If terminated early, wait for the door interlock to cool.
2. Sequence: Press Start/Pause to advance. Press On/Off to exit/cancel.
   • Fault code display (if any)
   • Software version display
   • LED check (all LEDs blink)
   • Motor (CW) rotation at 52 rpm (drain pump activates if water level is above flood level)
   • Motor (CCW) rotation at 52 rpm
   • Motor (CW) spin up to 900 rpm
   • Prewash (Cold) fill while decelerating from 900 rpm
   • Main Wash (Cold) fill
   • Softener (Cold) fill
   • Main Wash (Hot) fill
   • Heater Element activation (fills with hot/cold water if level is low)
   • Spray pump test (if fitted), heater turns on, main wash motor rotates at 52 rpm
   • Drain pump activation

Service Mode: To enter Service Mode:

1. Ensure power is on.
2. Press On/Off (wait 5 seconds for display).
3. Press and hold "Prewash & Extra Rinse" for 2 seconds.
4. If a fault code is present, it will be displayed.

Maintenance Features

Heater Testing:

• Remove tabletop.
• Start test program (reaches Step 6).
• Place a clamp-on amp meter around Grey or Red wire to the element.
• Current draw should be approximately 8.5 amps.

Diagnostics (LED Flashing):

• Prewash LED flashing: Control module failure (requires replacement).
• Main Wash LED flashing: Component issue (refer to flowchart "No Water").
• Rinse LED flashing: "No Water" issue (refer to flowchart).
• Conditioner LED flashing: "Unable to select a program" issue (refer to flowchart).

Fault Codes: Fault codes are stored in memory when a failure is detected and can be viewed in Service Mode. They are erased at the start of the next cycle, so it's crucial to check them before running another test.

• H1 (NTC Open or Short Circuit): NTC sensor failure, program completes without heating.
• H2 (Heater Open Circuit): Heater open circuit, program completes without heating.
• H3 (Heater Always On): Control module replacement required.
• H4 (Valve Triac Short Circuit): Control module replacement required.
• H5 (Pump Open Circuit / Blocked): Water level unchanged for 4 min, machine pauses, repeats 8 times before fault.
• H6 (Wash Motor Triac Short Circuit): Motor spins to high speed, checks 3 times for 3 seconds with 30-second pause, then opens relay, drains water, reverts to start.
• H7 (Pressure Sensor Failure): Refer to "No Water" flowchart.
• H11 (Motor / Tacho Open Circuit): After filling, if motor doesn't run or tacho signal isn't received, machine pauses for 120 seconds, repeats 8 times. If problem persists, motor won't energize, pump motor turns on, Prewash LED flashes.

Troubleshooting Flowcharts: The manual includes flowcharts for specific issues:

• Washing Machine Does Not Work: Guides through checking LEDs, front panel, door lock, cable continuity, and main PCB.
• Washing Machine Doesn't Work (After Filling Step Is Performed): Focuses on motor coil resistance, tacho magnet, KN9 socket pins, and draining.
• Washing Machine Takes Water from Wrong Compartment of Detergent Drawer: Checks valve connections.
• No Heat: Checks NTC sensor, heater resistance, and connections.
• Not Draining: Checks pump motor, pump filter, drain hose level, and pump terminal continuity.
• Unable to select a program: Checks program selector resistance and connections.
• Spinning When Washing: Addresses tacho failure, motor coil resistance, and tacho magnet.
• LED Blinking: Directs to specific diagnostic sections based on which LED is blinking.

The manual emphasizes removing garments before functional tests and waiting for the door interlock to cool if a test is terminated early. It also provides warnings about the consequences of specific failures, such as the motor not being energized or the machine turning to program selection mode after repeated attempts to correct a problem.

Fisher & Paykel WH70F60W1 Specifications