Smeg DWI612C error code e3

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My dishwasher is displaying lights for error code e3. I have had a good look through this forum and done the checks suggested. According to the Smeg support web site this fault could be :-

E3 – No heating
This alarm is generated when the heating system is not enough quick (less than 1.5°C 20min) .
This defect can be caused by:
– defective heating resistance
– temperature sensor is not properly positioned
– faulty washing pump (water does not flow)
– sprayers does not do not freely turns turn.
– electric connections are not properly connected in the resistance or in the timer card
– defective relay (electronic card)

The heater is OK.
The thermostat is OK.
The washing pump is OK.
The spray arms and pipes are clean, clear and OK.
No visible signs of damage on the pcb and all connections to the card seem OK.

Can anyone suggest what I may try next or what the problem is likely to be? It appears that the machine is not calling for heat when it should, but I’m not sure why.

[Penguin45]

Re: Smeg DWI612C error code e3

Assuming that you have continuity to the heater, all that’s left is the pcb. Switching relay may have failed, or there is a logic error.

Penguin45.

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Re: Smeg DWI612C error code e3

Bingo!

I traced the continuity back from the heater and found a break in the main wire from the pcb. It was within the wiring loom at the door hinge, which is wrapped in sticky plastic protective sleeving so you can’t see the wires. Two other wires were starting to break too – presumably fatigued by the door opening/closing over the last five years.

Not sure if this is a common problem or not, but others experiencing a similar fault may wish to check this ‘weakness(?)’ of the design.

An important lesson for me – don’t assume a component is ok : check it!

Many thanks to Penguin45 for pointing me in the right direction – you were spot on. Looking at your answers to other posts too, you clearly know your stuff very well.

A very economic repair when I thought I was going to have to shell out for a new pcb – you can tell I’m pleased, I’m sure!

[Penguin45]

Re: Smeg DWI612C error code e3

Nicely done – odd fault with a SMEG.

To fix this properly, do not just remake the break at the pivot point – it won’t last long. You need to chop out the broken wire and insert a new section joining above and below the pivot point for a repair which will last.

Penguin45.

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Re: Smeg DWI612C error code e3

Thanks Penguin. I’ve done a temporary repair, but will go and get some connectors today and do it properly.

[eckyhen]

Re: Smeg DWI612C error code e3

My Smeg had exactly the same problem and found break in wiring at door hinge just like yours. Seems to be a common fault.

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