OEM VERIFIED BENCH

OFFICIAL FAULT CODETap Symbol

Siemens // OFFICIAL DIAGNOSTIC BENCH

Siemens Dishwasher Tap Symbol

DishwasherWater Inlet Valve, Aquastop & Flowmeter

Dishwasher

Symptom / Description

FAULT

Water supply fault indicator is lit

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

Indicates an issue with the water supply. Water tap may be off, inlet hose kinked, or inlet filter blocked.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED

1Check that the water tap is fully open. Straighten the inlet hose. Clean the filter at the connection point to the machine.

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 Technician Worldwide Siemens Parts Finder

Electrical & Safety Protocol

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

SWISS ATELIER TECHNICAL BLUEPRINT // 2026 SCHEMATIC STANDARD

Water Inlet, Aquastop & Flowmeter Loop

Inlet Solenoid Valve Y1, Reed Turbine Flowmeter & Aquastop Float S2

CALIBRATED TEST POINTS (TP1 / TP2)

ACTIVE MULTIMETER BENCH

Target Component

Solenoid Valve Coil / Aquastop Pneumatic Valve

Nominal Resistance / Test Range

3.5kΩ–4.5kΩ (Standard 230V) / 2.0kΩ–4.2kΩ (Aquastop)

Test Harness Pins

Across coil spade terminals (disconnect harness first)

Diagnostic Verification Rule

OL on solenoid indicates open coil. Closed contact on float switch S2 indicates base pan leak.

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: Siemens TAP SYMBOL

FAQ TREE

What does error code TAP SYMBOL mean on a Siemens appliance?

Siemens error code TAP SYMBOL indicates: Water supply fault indicator is lit.

What is the root cause of Siemens error code TAP SYMBOL?

The primary root cause for Siemens code TAP SYMBOL is: Indicates an issue with the water supply. Water tap may be off, inlet hose kinked, or inlet filter blocked..

How do I fix or resolve Siemens error code TAP SYMBOL?

To resolve error code TAP SYMBOL: Check that the water tap is fully open. Straighten the inlet hose. Clean the filter at the connection point to the machine.

Is it safe to clear Siemens error code TAP SYMBOL by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Siemens code TAP SYMBOL persists, the physical component causing Indicates an issue with the water supply. Water tap may be off, inlet hose kinked, or inlet filter blocked. must be inspected or replaced.

How do I test electrical resistance for Siemens code TAP SYMBOL 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 Siemens code TAP SYMBOL?

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.

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COMMUNITY

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OEM VERIFIED BENCH

OFFICIAL FAULT CODETap Symbol

Siemens // OFFICIAL DIAGNOSTIC BENCH

Siemens Dishwasher Tap Symbol

DishwasherWater Inlet Valve, Aquastop & Flowmeter

Dishwasher

Symptom / Description

FAULT

Water supply fault indicator is lit

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

Indicates an issue with the water supply. Water tap may be off, inlet hose kinked, or inlet filter blocked.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED

1Check that the water tap is fully open. Straighten the inlet hose. Clean the filter at the connection point to the machine.

AI WORKSHOP PROTOCOL ENGINE

Direct extraction from OEM factory manuals & wiring schematics

Field Actions

DISPATCH

Need Help? Call a Certified Technician Worldwide Siemens Parts Finder

Electrical & Safety Protocol

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

SWISS ATELIER TECHNICAL BLUEPRINT // 2026 SCHEMATIC STANDARD

Water Inlet, Aquastop & Flowmeter Loop

Inlet Solenoid Valve Y1, Reed Turbine Flowmeter & Aquastop Float S2

CALIBRATED TEST POINTS (TP1 / TP2)

ACTIVE MULTIMETER BENCH

Target Component

Solenoid Valve Coil / Aquastop Pneumatic Valve

Nominal Resistance / Test Range

3.5kΩ–4.5kΩ (Standard 230V) / 2.0kΩ–4.2kΩ (Aquastop)

Test Harness Pins

Across coil spade terminals (disconnect harness first)

Diagnostic Verification Rule

OL on solenoid indicates open coil. Closed contact on float switch S2 indicates base pan leak.

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

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: Siemens TAP SYMBOL

FAQ TREE

What does error code TAP SYMBOL mean on a Siemens appliance?

Siemens error code TAP SYMBOL indicates: Water supply fault indicator is lit.

What is the root cause of Siemens error code TAP SYMBOL?

The primary root cause for Siemens code TAP SYMBOL is: Indicates an issue with the water supply. Water tap may be off, inlet hose kinked, or inlet filter blocked..

How do I fix or resolve Siemens error code TAP SYMBOL?

To resolve error code TAP SYMBOL: Check that the water tap is fully open. Straighten the inlet hose. Clean the filter at the connection point to the machine.

Is it safe to clear Siemens error code TAP SYMBOL by resetting power?

How do I test electrical resistance for Siemens code TAP SYMBOL using a multimeter?

What safety protocol must be followed before servicing Siemens code TAP SYMBOL?

Community Verification

COMMUNITY

Did this solution resolve the issue?

Siemens Dishwasher Tap Symbol

Symptom / Description

Root Cause

Repair Instructions

Field Actions

Water Inlet, Aquastop & Flowmeter Loop

Workshop Verification & Safety Checklist

Frequently Asked Questions: Siemens TAP SYMBOL

Community Verification

Related Siemens Dishwasher Error Codes

Siemens Dishwasher Tap Symbol

Symptom / Description

Root Cause

Repair Instructions

Field Actions

Water Inlet, Aquastop & Flowmeter Loop

Workshop Verification & Safety Checklist

Frequently Asked Questions: Siemens TAP SYMBOL

Community Verification

Related Siemens Dishwasher Error Codes