- Appliances
- Dishwashers
E02
Grundig E:02 on dishwasher: water supply cut-off or tap off
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
On Grundig GNFP4540, GNFP4630 and GNFP3441 dishwashers, the E:02 icon flashes when the mains water supply is cut off or the water inlet tap is not opened. The wash programme stops and checks at intervals whether water flows in; once water flows, E:02 turns off and the cycle resumes.
Safety first
Stop and check this first
- Unplug the product and turn off the tap before removing the water inlet hose to clean its filter, then open the tap completely after reconnecting to check for water leaks.
- Do not use an old or used water inlet hose or extension hoses on the dishwasher, and install a pressure relief valve if tap water pressure exceeds 10 bar.
Safe checks you can perform
- Check that the water inlet tap is fully open and mains water runs
- Inspect the water inlet hose for folds or crushing
- Clean the filter attached to the water inlet hose
Leave these tasks to a qualified professional
- Do not attempt this professional task: Water supply pressure and inlet valve diagnostic
- Do not attempt this professional task: Fill verification and automatic cycle resume test
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Water supply pressure and inlet valve diagnostic
What they doThe Grundig Authorised Service Agent checks that tap pressure lies between 0.3 and 10 bar (0.03 to 1.0 MPa) and tests the dishwasher's water inlet valve and hose assembly.
They must show youthe water flow check at the appliance inlet and the test result of the inlet valve.
In writingthe root cause of the E:02 fault, any replaced part number and the verified supply pressure.
Fill verification and automatic cycle resume test
What they doAfter restoring water intake, the engineer opens the tap completely, checks all hose connections for leaks and runs a wash cycle to verify that E:02 turns off and the programme completes.
They must show youthe programme indicator running without E:02 and dry inlet hose connections with the tap fully open.
In writingthe test programme run, confirmation of normal filling without E:02 and the date.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Check that the water inlet tap is fully open and mains water runs
- Who:
- you.
- How:
- check the water inlet tap feeding the dishwasher to make sure it is turned fully on, and open a kitchen tap nearby to confirm that mains water is flowing normally in your home.
- Result that matters:
- ensuring water can flow into the machine at the required 0.3 to 10 bar tap pressure.
- If the inlet tap was closed or mains water was off:
- open the tap or wait for supply to return; the dishwasher checks at intervals and E:02 will turn off automatically.
- If the tap is open and household water pressure is normal:
- move on to checking the inlet hose and its filter.
- Evidence to keep:
- photo of the inlet tap position and a note confirming normal flow at the kitchen sink tap.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
Inspect the water inlet hose for folds or crushing
- Who:
- you.
- How:
- without removing any panels, check the visible path of the water inlet hose behind or beside the dishwasher to make sure it was not folded, pinched or crushed when the machine was pushed into place.
- Result that matters:
- clearing any external kink that restricts water from reaching the dishwasher.
- If the inlet hose was kinked or pinched:
- straighten it carefully and wait a few minutes for the paused programme to detect water flow and resume.
- If the hose runs smoothly without bends:
- proceed to cleaning the water inlet hose filter.
- Evidence to keep:
- photo of the water inlet hose routing behind or under the counter.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
Clean the filter attached to the water inlet hose
- Who:
- you.
- How:
- unplug the dishwasher, turn off the tap, remove the water inlet hose, take out the hose filter and clean it under running tap water to remove sand, dirt or rust, then place the filter back into its seat, reinstall the hose to the tap and open the tap completely to check for leaks.
- Result that matters:
- removing supply water impurities from the inlet hose filter as described in the Maintenance and Cleaning section.
- If the hose filter held grit or rust and E:
- 02 turns off once reconnected: the blocked filter caused the warning.
- If the filter was clean and E:
- 02 continues flashing with the tap open: consult your dealer or the Authorised Service Agent.
- Evidence to keep:
- photo of the water inlet hose filter before and after cleaning under tap water.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Grundig
- Product type
- Dishwashers
Known code variants
- E 02
- E02
- E2
- E:02
- E:2
- GNFP3441 E:02
- GNFP4630DW E:02
- Grundig dishwasher E:02
- Grundig E02
- Grundig E:02
- lavavajillas Grundig E:02
What it means
In the user manuals for Grundig GNFP4540DWW, GNFP4630DWX, GNFP3441W and GNFP3441G dishwashers, the flashing E:02 icon on the program indicator is the water supply cut-off warning shown when mains water is interrupted or the machine's water inlet tap is closed so water cannot flow in. While the condition continues, the washing programme stops and the dishwasher checks at regular intervals whether water is entering; once water flows in, the E:02 icon turns off after a short period and the washing cycle resumes. Seeing E:02 alone does not prove that an internal component is faulty.
Warnings and stop conditions
- Lowsource verified
Unplug the product and turn off the tap before removing the water inlet hose to clean its filter, then open the tap completely after reconnecting to check for water leaks.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
- Lowsource verified
Do not use an old or used water inlet hose or extension hoses on the dishwasher, and install a pressure relief valve if tap water pressure exceeds 10 bar.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
Symptoms and causes
Probable causes · in order
- Machine water inlet tap not openedCommon
Grundig's manual directly states that if the machine water inlet tap is not opened, water will not flow in and the E:02 icon will flash on the program indicator.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
- Mains water supply cut off or pressure below 0.3 barCommon
An interruption in the household mains water supply or tap pressure below the 0.3 bar minimum specified in the manual prevents filling and pauses the wash with E:02.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
- Blocked water inlet hose filter or pinched hosePossible
The filter attached to the water inlet hose traps sand, dirt and rust from supply pipes; if it clogs or the hose is folded or crushed behind the appliance, water cannot enter.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
- Appliance water intake fault requiring authorised serviceLess common
If mains water is available, the tap is fully open and the hose filter is clean but E:02 still does not clear, the manual directs you to consult the Authorised Service Agent.
Evidence: Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100) · Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
Virtual technician
Does E02 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Grundig Dishwasher User's Manual GNFP4540DWW / GNFP4630DWX (doc. 15 8755 0100)
Grundig · 2021 · manual
- 2
Grundig Dishwasher User's Manual GNFP3441W / GNFP3441G (doc. 15 7735 0100)
Grundig · 2023 · manual
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