White Knight E00 tumble dryer: what it means & what to check

Stop using it for now. Carrying on with this fault risks further damage or a leak. Switch it off at the wall until it has been looked at.

What E00 actually means

The touch control panel has lost contact with the dryer's main circuit board, so the two halves of the machine can no longer talk to each other.

On this heat pump model the touch panel is a separate board from the mainboard that actually runs the drum, compressor and pump. E00 is flagged when the touch panel stops receiving any communication from the mainboard, so nothing you press can be acted on and the programme won't run. It is a communication fault rather than a fault with a specific part like the motor or compressor, which the dryer reports under its own codes.

What E00 looks like on a White Knight tumble dryer

Most people find this page having searched for what the machine is doing rather than the code itself. On a White Knight tumble dryer, E00 usually shows up as one or more of these:

Machine door won't open
Door won't lock or click shut
Door lock light flashing
Door stuck shut with the load inside
Won't start even with the door closed
Not drying
Blowing cold air
Clothes still damp at the end

Recognise any of those? That is this fault, and the rest of this page explains what causes it and what you can check yourself.

What usually causes it

A loose or partly unseated connector on the ribbon or lead between the touch panel and the mainboard
A failed mainboard, so it is no longer sending anything for the panel to hear
A failed touch control board
Damage to the wiring between the two boards, sometimes from moisture or vibration

What you can safely check yourself

Work through these in order. Anything beyond this — panels off, testing parts, anything to do with the wiring — is an engineer's job, and not one to attempt with the machine plugged in.

Turn the dryer off at the wall socket, leave it for a minute, then switch back on — a genuine one-off communication dropout will often clear and not return
If the panel seems unresponsive rather than showing a fault, check the child lock isn't active before assuming a board problem

Which White Knight models show E00

E00 means the same thing on this model. If yours is not listed, the explanation above still applies — the code is set by the control board, not the model number.

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Common questions about White Knight E00

What does E00 mean on a White Knight tumble dryer?

The touch control panel has lost contact with the dryer's main circuit board, so the two halves of the machine can no longer talk to each other. On this heat pump model the touch panel is a separate board from the mainboard that actually runs the drum, compressor and pump. E00 is flagged when the touch panel stops receiving any communication from the mainboard, so nothing you press can be acted on and the programme won't run. It is a communication fault rather than a fault with a specific part like the motor or compressor, which the dryer reports under its own codes.

Can I fix White Knight E00 myself?

There are 2 checks you can safely do yourself first.

Turn the dryer off at the wall socket, leave it for a minute, then switch back on — a genuine one-off communication dropout will often clear and not return.
If the panel seems unresponsive rather than showing a fault, check the child lock isn't active before assuming a board problem.

This one usually needs an engineer once you have tried them.

How much does it cost to repair White Knight E00?

£66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.

Tried the checks and it's still showing E00?

This one usually needs an engineer once you have tried the checks above. Then it wants someone who can open it up.

What it costs, before you call: the price is the same whatever the fault turns out to be — £66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.

Our own engineers, not a call centre. We cover Nottinghamshire, Derbyshire and Leicestershire — most tumble dryer faults are seen same day or next day.

Call 0115 648 0929 Book online — postcode and number is all we need

Outside our area? The explanation above still stands — take it to a local engineer and tell them the code. Knowing it saves them time and you money.

Other White Knight tumble dryer codes

All White Knight fault codes and repairs →

What this looks like when it happens

Repairs we cover near you

Written by the engineers at ASAP Repairs, 0115 648 0929. We repair these machines for a living in Nottinghamshire, Derbyshire and Leicestershire.

White Knight E00 error — tumble dryer