Is 3-4 Bar water pressure adequate to run a dishwasher?

[SkipFeeney]

Hi,

We have an ongoing issue with our Dishwasher and the engineers seem to think it is our plumbing.

We are regularly getting an error - E2 - Water Inlet Malfunction Error. We always make sure we don't run taps when the Dishwasher is on, but still in about 30% of times we get this error. Sometimes at the start of the cylcle sometimes in the middle. Other times it works fine.

Today I bought a water pressure gauge and connected it up. Its showing almost 4 bar of pressure at the dishwasher connection. Does this prove that the fault is with the dishwasher? or could it be something else?

Instructions say that the dishwasher needs the following water pressure: Between 0.04 and 1 MPA


Thanks

 

[Dan Robinson]

3 bar is plenty.

 

[SkipFeeney]

Would you say its the dishwasher then or could it still be something on the supply side?

 

[Madrab]

I'd check this out, may be the route of your problem and it's nowt to do with your water supply.

http://www.ukwhitegoods.co.uk/help/...sher-fault-codes/2716-the-e2-dishwasher-error

 

[picasso]

Is that 4 bar with another tap running or 4 bar static.?

 

[Madrab]

Reading into that error, it could also be an overfill, i.e. your pressure and/or flow is too high and plays havoc with the pressure/flow switches. Have you tried partially closing the appliance service valve?

 

[SkipFeeney]

Its 4 bar static.

Originally when we first had the problem after it had been installed the engineer moved the dishwasher forward out of the cabinet and it worked a lot better. We thought it was because the water connection was directly under the dishwasher so the supply pipe was tightly coiled. I moved the connection back about half a meter and the pipe work is no longer coiled but its still happening.

Its been happening since day 1 so unlikely to be debris blocked in a tube.

 

[picasso]

Take the connection off the d/washer and run it into a bucket, you will soon see if there is a restriction or not.

 

[dilalio]

Does your dishwasher have an 'aquastop' inlet connection? This could be the source of the fault.
Photo of the inlet connection would help.