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OEM VERIFIED BENCH
OFFICIAL FAULT CODEF3
Fors
Fors // OFFICIAL DIAGNOSTIC BENCH

Fors F3

DishwasherWater Inlet Valve, Aquastop & Flowmeter
Premium built-in dishwasher with open illuminated stainless steel interior and precision spray arms
Dishwasher
Other Brands Sharing Code F3:BoschF3MieleF3SiemensF3SamsungF-3LGF3WhirlpoolF3ElectroluxF3AEGF3BekoF3IndesitF3

Symptom / Description

FAULT

Dishwasher continuously fills with water, even when turned off.

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

The water inlet valve (solenoid) is stuck open and not shutting off the water supply.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1Immediately turn off the water supply to the dishwasher. The inlet valve needs to be replaced.
AI diagnostic workshop engine analyzing appliance circuit schematics and error telemetry in real time
AI WORKSHOP PROTOCOL ENGINE
Direct extraction from OEM factory manuals & wiring schematics

Field Actions

DISPATCH
Need Help? Call a Certified TechnicianWorldwide Fors Parts Finder
Electrical & Safety Protocol

Always disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.

CALIBRATED BENCH PROTOCOL // CAT III 600V

Workshop Verification & Safety Checklist

WORKSHOP VERIFICATION PROTOCOLWater Inlet Valve, Aquastop & FlowmeterDishwasher
2. Multimeter & Electrical Bench Tests (Ω)
MODE: OHMMETER (Ω)AUTO-RANGE
Precision digital multimeter probes measuring electrical resistance in Ohms on an appliance control board
CALIBRATED METROLOGY RESISTANCE BENCH (CAT III)
Nominal Resistance (Ω)
3.5kΩ–4.5kΩ (Standard 230V) / 2.0kΩ–4.2kΩ (Aquastop)NOMINAL
0 Ω (SHORT)CALIBRATED BAND∞ OL (OPEN)
▲ NOMINAL OPERATING WINDOW
Target Component:Solenoid Valve Coil / Aquastop Pneumatic Valve
Test Pins & Connections
PROBE (+)
PROBE (-)
Across coil spade terminals (disconnect harness first)
Tolerance & Diagnostic Criteria±10%. Open circuit (OL) indicates burned solenoid coil. Flowmeter turbine reed switch pulses on flow.
1. Pre-Intervention Electrical Safety Protocols
  • !Electrical Safety Protocol: Disconnect electrical power before touching solenoid valve coils or Aquastop connectors.
  • !Firmly shut off the domc water supply tap before unscrewing the inlet hose fitting.
  • !Check safety base drip tray for accumulated water triggering the anti-flood polystyrene float switch.
3. Preliminary Mechanical & Visual Checks
  • Remove and clean sediment and sand particles from the 3/4" inlet hose metal mesh filter.
  • Verify domestic dynamic water pressure is between 1.0 and 10.0 bar (0.1 to 1.0 MPa).
  • Inspect outer Aquastop hose jacket for expansion, pinch damage, or internal leak reservoir triggering.
Perform these diagnostic steps before triggering AI Deep Search or replacing boards.Certified Workshop Routine

Frequently Asked Questions: Fors F3

FAQ TREE
What does error code F3 mean on a Fors appliance?

Fors error code F3 indicates: Dishwasher continuously fills with water, even when turned off..

What is the root cause of Fors error code F3?

The primary root cause for Fors code F3 is: The water inlet valve (solenoid) is stuck open and not shutting off the water supply..

How do I fix or resolve Fors error code F3?

To resolve error code F3: Immediately turn off the water supply to the dishwasher. The inlet valve needs to be replaced.

Is it safe to clear Fors error code F3 by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Fors code F3 persists, the physical component causing The water inlet valve (solenoid) is stuck open and not shutting off the water supply. must be inspected or replaced.

How do I test electrical resistance for Fors code F3 using a multimeter?

Set a digital multimeter to ohms (Ω). Disconnect power and test Solenoid Valve Coil / Aquastop Pneumatic Valve across Across coil spade terminals (disconnect harness first). Expected nominal reading is 3.5kΩ–4.5kΩ (Standard 230V) / 2.0kΩ–4.2kΩ (Aquastop). Tolerance: ±10%. Open circuit (OL) indicates burned solenoid coil. Flowmeter turbine reed switch pulses on flow..

What safety protocol must be followed before servicing Fors code F3?

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.

Community Verification

COMMUNITY

Did this solution resolve the issue?

SEMANTIC KNOWLEDGE GRAPH // FORS

Related Fors Dishwasher Error Codes

Diagnostic Link Mesh14 OEM Cross-References

Cross-referenced diagnostic codes for technicians inspecting similar component subsystems.

F4NTC Temperature Sensor & Thermistor
Poor wash results and incorrect water temperature.
Inspect Protocol
F5Water Inlet Valve, Aquastop & Flowmeter
Dishwasher does not fill with water or stops at the beginning of the cycle.
Inspect Protocol
F6Heating Element, Thermostat & Safety Fuse
Dishes are not being washed with hot water; poor cleaning results.
Inspect Protocol
F7Drive Motor, Inverter & Tachometer Sensor
Water is not being directed to the spray arms correctly; poor wash performance.
Inspect Protocol
i10Water Inlet Valve, Aquastop & Flowmeter
Machine beeps and shows an error indicating it cannot fill with water.
Inspect Protocol
i20Drainage System & Drain Pump
Cycle ends with dirty water left in the tub.
Inspect Protocol
i30Drainage System & Drain Pump
The dishwasher has stopped, and the drain pump may be running continuously.
Inspect Protocol
i50Drive Motor, Inverter & Tachometer Sensor
The machine makes a humming noise, but the spray arms are not rotating and no washing sound ...
Inspect Protocol
i60NTC Temperature Sensor & Thermistor
Cycle stops abruptly, possibly with steam coming from the unit.
Inspect Protocol
F1Drainage System & Drain Pump
Dishwasher has stopped and may be leaking water from the base.
Inspect Protocol
F2Drainage System & Drain Pump
Water is left in the bottom of the dishwasher after a cycle.
Inspect Protocol
HGeneral System & Mechanical Integration
An 'H' is displayed for a cooking zone after it has been turned off.
Inspect Protocol
HFRefrigeration Compressor, Defrost Heater & PTC Relay
Alarm and 'HF' (High Freezer) warning displayed.
Inspect Protocol
HotGeneral System & Mechanical Integration
The word 'Hot' or a thermometer symbol remains on the display even when the oven is off.
Inspect Protocol
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