- Appliances
- Dishwashers
E3
Fagor E3 on a dishwasher: required water temperature not reached
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
On Fagor dishwashers such as the 3LVF-623.1 or 4LVF-639ADX, E3 means the required temperature has not been reached. Fagor puts it down to a heating element malfunction: unplug the appliance, turn off the water and call the service centre.
Safety first
Stop and check this first
- Do not open the door while a programme is running: Fagor warns that hot water or steam can be released.
- For safety reasons Fagor says repairs should be referred to professionals: repairs carried out by unqualified persons may seriously endanger the user. Do not open panels to look at the heater.
Safe checks you can perform
- Cut off power and water
- Check how it is plugged in
- Prepare the call to the service centre
Leave these tasks to a qualified professional
- Do not attempt this professional task: Diagnosis of water heating
- Do not attempt this professional task: Test cycle with heating
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.
Diagnosis of water heating
What they doThe authorised technician tests the heating element and its circuit with the appliance isolated from the mains before replacing any part.
They must show youthe measurement that confirms which component is not heating.
In writingthe cause found, the part replaced with its reference and the reason.
Test cycle with heating
What they doAfter the repair, the technician runs a programme that heats the water and checks that it finishes without E3 coming back.
They must show youa complete programme with heating and without E3.
In writingthe test carried out, the result, the date and the repair warranty.
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.
Cut off power and water
- Who:
- you, without opening the appliance.
- How:
- note the code and the programme, then unplug the dishwasher by the plug, not the cable, or switch off its fuse. Then turn off the water intake. This is what Fagor's manual asks for in case of problems or repairs.
- Result that matters:
- the appliance left without power and water while you wait for the technician.
- If you could cut off both:
- leave it like that until it has been inspected.
- If you cannot reach the plug:
- switch off the fuse at the consumer unit or ask for help, without moving the appliance.
- Evidence to keep:
- a photo of the display showing E3, the programme selected and the time.
Evidence: Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN) · Fagor 4LVF-639ADX lavavajillas manual de instrucciones IO-DWS-5123 (ES/PT/EN)
Check how it is plugged in
- Who:
- you, looking from outside.
- How:
- check that the dishwasher uses its original plug in an earthed socket, with no extension cable or power strip. Fagor does not allow extension cables because they can overheat, and warns that low voltage worsens washing. The manual does not tie this to E3, but it is worth ruling out before calling.
- Result that matters:
- knowing whether the connection meets what the manual requires.
- If it was on an extension or power strip:
- stop using it that way; a qualified electrician should adapt the socket.
- If the connection is correct:
- go on to call the service centre.
- Evidence to keep:
- a photo of the plug and the socket.
Evidence: Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN)
Prepare the call to the service centre
- Who:
- you.
- How:
- find the serial number on the identification sticker, as Fagor asks before you get in touch, and the service centre address and phone number on the warranty card. Note how many times E3 has appeared and on which programme.
- Result that matters:
- a complete report for the Fagor service centre.
- If it is under warranty:
- use the service named on the card, as Fagor says interfering with the appliance voids the warranty.
- If it is out of warranty:
- ask for a written quote before any part is replaced.
- Evidence to keep:
- serial number, purchase date, photos and the service call number.
Evidence: Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN) · Fagor 4LVF-639ADX lavavajillas manual de instrucciones IO-DWS-5123 (ES/PT/EN)
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
- Fagor
- Product type
- Dishwashers
Known code variants
- 3 flashes
- 3 parpadeos
- Bongo D series brake failure
- Bongo D30 E3
- Bongo E3
- Bongo scooter error E3
- Bongo serie D fallo del freno
- Cecofry E3 code
- Cecotec Bongo brake error
- Cecotec Bongo error freno
- Cecotec scooter error E3
- Código de error E3
- Código E3 Cecofry
- código E3 Mabe Kraken
- Cointra E3
- Cointra E3 fault
- Cointra electric water heater E3
- Cointra TND E3
- Cosori E3
- E 3
- E-3
- E03
- E3
- E3 appliance overheating
- E3 cesta derecha
- E3 on display
- E3 right basket sensor
- E3 sobrecalentamiento
- Electrolux ELAC309W E3
- Electrolux washer E3
- Electrolux washing machine error E3
- Error 03
- Error 3
- Error Code E3
- error code E3 Mabe Kraken
- Error E3
- error E3 lavadora Mabe
- error E3 lavarropas Electrolux
- error E3 lavavajillas Fagor
- error E3 lavavajillas Smeg
- error E3 termo Cointra
- Fagor 3LVF-623.1 E3
- Fagor 4LVF-639ADX E3
- Fagor dishwasher E3
- Fagor dishwasher error E3
- Fagor dishwasher not heating water E3
- Fagor lavavajillas E3
- falla E3 lavadora Electrolux
- falla E3 Mabe sensor Hall
- Hoover E03
- Hoover E3
- Hoover washing machine E03
- Hoover washing machine E3
- lavadora Hoover E03
- lavadora Hoover E3
- lavadora Mabe E3 no gira
- lavavajillas Fagor no calienta el agua E3
- lavavajillas Smeg no calienta el agua E3
- Mabe E3
- Mabe E3 error
- Mabe E3 motor Hall sensor
- Mabe washer E3
- Mabe washing machine E3
- Overheat protection has activated
- patinete Bongo error E3
- patinete Cecotec error E3
- Protección contra el sobrecalentamiento activada
- Smeg dishwasher E3
- Smeg dishwasher error E3
- Smeg dishwasher not heating water E3
- Smeg lavavajillas E3
- Smeg LVFABCR3 E3
- termo eléctrico Cointra E3
- TND 100 E3
- TND 150 E3
- TND 50 E3
- TND 80 E3
What it means
The manuals for the Fagor 3LVF-623.1 (IO-DWS-1497) and 4LVF-639ADX (IO-DWS-5123) dishwashers define E3 as the required temperature not being reached during the wash. As the possible cause, the table gives a malfunction of the heating element, an internal part that runs on mains voltage. Fagor recommends that all repairs are carried out by the factory service or an authorised service point. These tables are for those models and other Fagor appliances may use different codes. The code alone never proves that a part is faulty: the technician checks that.
Warnings and stop conditions
- Lowsource verified
Do not open the door while a programme is running: Fagor warns that hot water or steam can be released.
Evidence: Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN)
- Mediumsource verified
For safety reasons Fagor says repairs should be referred to professionals: repairs carried out by unqualified persons may seriously endanger the user. Do not open panels to look at the heater.
Evidence: Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN) · Fagor 4LVF-639ADX lavavajillas manual de instrucciones IO-DWS-5123 (ES/PT/EN)
Symptoms and causes
Probable causes · in order
- Heating element malfunctionCommon
It is the only cause both manuals' error tables give for E3; confirming that the heater has failed is a job for the technician, with the appliance opened.
Evidence: Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN) · Fagor 4LVF-639ADX lavavajillas manual de instrucciones IO-DWS-5123 (ES/PT/EN)
- Poor electrical supplyLess common
Fagor warns that running the appliance on low voltage worsens washing and may damage it, and rules out extension cables; the manual does not link this to E3 directly.
Evidence: Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN)
Virtual technician
Does E3 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
Fagor 3LVF-623.1 lavavajillas manual de instrucciones IO-DWS-1497 (ES/PT/EN)
Fagor · 2021 · manual
- 2
Fagor 4LVF-639ADX lavavajillas manual de instrucciones IO-DWS-5123 (ES/PT/EN)
Fagor · 2026 · manual
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