Guide

When to Call an Appliance Engineer

Signs that a washing machine, dishwasher, or other household appliance needs professional attention.

Use the exact manual for permitted owner checks. Recurring faults, unsafe symptoms and work inside the appliance need appropriate professional help; emergencies need immediate action.

Last updated: 22 September 2026

An emergency comes before a repair booking

If the appliance is smoking or on fire, get out, stay out and call 999. Do not delay leaving to photograph it, unplug it or investigate. For a non-fire fault, stop use and isolate the appliance only if you can do so safely without reaching wet or damaged electrical parts.
For a suspected gas leak or carbon-monoxide emergency, move outside and for mains gas call 0800 111 999 in Great Britain or 0800 002 001 in Northern Ireland. Do not operate electrical switches where gas is suspected. Seek urgent medical help if carbon-monoxide exposure is suspected. For LPG, contact your supplier’s emergency service.

Arrange appropriate professional help when

The same fault returns after the action permitted by the exact user manual, or the manual specifies service.
There is unexplained leaking, overheating, electrical tripping, damaged wiring or a damaged plug. Do not keep restarting the appliance to test it.
The next step would require cabinet panels, wiring tests, bypassing an interlock or internal component work. A user-accessible filter described in the manual is different from dismantling a pump or cabinet.
A published safety notice applies to the exact model. Follow that notice and the manufacturer’s route before paying for an unrelated repair.

Prepare for a useful diagnosis

Record the full code, model and serial number from safely accessible information. Include suffixes and alternating displays; a partial code may have a different meaning.
Describe when the fault occurs and the permitted user checks already tried. A code names a reported condition; it does not prove a particular part has failed.
Check purchase documents, warranty and manufacturer support. Ask the repairer to confirm diagnostic charges, labour, parts, VAT and return-visit terms.
Use a repairer competent for the appliance. For gas work, use a Gas Safe registered engineer qualified for the specific work; for suspected fixed-wiring or socket faults, seek an appropriately qualified electrician.

Check the exact model and serial number with the manufacturer and the official UK safety notices. Our model checker currently covers selected tumble-dryer notices only; no match is not a safety clearance.

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Samsung Washing Machine hub

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High-priority appliance fault codes

Beko Washing Machine E18

Spin did not start because of imbalance on the verified B5W5841AW and BM1WU3721W models

Hoover Washing Machine E03

The washing machine is not draining water on models using Hoover's E03/E3 mapping

Baxi Boiler E128

Frequent flame loss when the full code is E128

Baxi Boiler E28

Flue-temperature NTC circuit fault in the applicable Baxi table

Beko Washing Machine E11

Condenser or dryer temperature-sensor fault on BW1O3721W

Bosch Washing Machine E26

Analogue pressure-sensor fault

Bosch Washing Machine E29

Water-inlet problem in Bosch France guidance

Bosch Washing Machine E30

The full E:30 suffix is required

Leak and overflow fault codes

Samsung Washing Machine 0C

Overflow detected

Samsung Washing Machine 0E

Overflow detected

Samsung Washing Machine OC

Overflow detected

Samsung Washing Machine OE

Overflow detected

Beko Dishwasher E01

Water in the chassis warning on Beko BDIN38540

Beko Washing Machine E12

Possible water inside or underneath the machine

Bosch Dishwasher E15

Leak protection activated by water in the base

Bosch Dishwasher E30

Water protection activated when the full code is E:30-00

Persistent drainage fault codes

Hoover Washing Machine E03

The washing machine is not draining water on models using Hoover's E03/E3 mapping

Bosch Washing Machine E36

The complete E:36 suffix is required

Hotpoint Washing Machine F05

Waste-pipe blockage or pump problem

Hotpoint Washing Machine F11

Pump-circuit fault

Indesit Washing Machine F11

Pump-circuit fault

Samsung Washing Machine 5C

Water-drainage error

Samsung Washing Machine ND

No-drain error

Samsung Washing Machine SE

No-drain error

Bosch dishwasher faults to compare

Bosch Dishwasher E01

Heat-pump motor control-circuit fault

Bosch Dishwasher E02

Main control-board relay fault

Bosch Dishwasher E03

Main control-board relay fault

Bosch Dishwasher E04

Heater-electronics self-test fault in Bosch US guidance

Bosch Dishwasher E05

Wash-arm diverter control-circuit fault in Bosch US guidance

Bosch Dishwasher E06

Door-sensor circuit fault

Bosch Dishwasher E07

Zeolite drying-system fan fault

Bosch Dishwasher E08