Dishwasher Problems and Answers - Find out About Common Faults With Dishwashers and How you can Fix Them

Summary: Dishwasher problems and how to repair dishwasher parts including diagnosis and replacement. In this project we list some common faults that occur with dishwashers including what parts commonly fail.

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Dishwashers and dishwasher problems are a fairly new part of our lives but most people who spend any time in the kitchen wonder how they did without them!

Modern slimline dishwasher in kitchen

A modern dishwasher under kitchen worktop

Many of the things that go wrong with a dishwasher are user errors and as much as we don't like to admit it, could have been avoided if only we had read the instructions. The following is a list of easily rectifiable problems but if you are at all worried, or encounter something not explained here, please call an engineer.

Also check out our project on washing machine and dishwasher wastes and pressure reducing valves.

No power to dishwasher:

  • Check other appliances for power cut
  • Check fuse in plug and consumer unit
  • Check door is closed properly
  • Check water is switched on

Dishwasher leaking:

  • Overloaded with detergent
  • Check all pipes are connected properly with no splits
  • Seals round door leaking
  • Waste pipe split
Modern slimline dishwasher open

Inside view of a slimline dishwasher

Dishwasher not washing:

  • Badly stacked in machine
  • Low water pressure
  • Clean the strainer and filter
  • Water may be too hard to get a good wash

Dishwasher not filling:

  • Is valve from cold water open?
  • Turn water off, remove hose from dishwasher, turn waste on gently to see if hose is blocked
  • If hose is not blocked it may be the inlet valve

Dishwasher not taking the detergent:

  • Try using less detergent
  • Spray arm may be blocked. Poke out holes with a cocktail stick.

Dishwasher not draining:

  • Is drain hose damaged, blocked or bent?
  • Are the drains blocked?
  • Is sump strainer or filter blocked?
  • If your dishwasher hose goes into an appliance trap has the end been cut off of the end of the spigot?
  • If it makes an odd sound it may be the pump

You might like to visit our video section on troubleshooting in our plumbing section to to watch a video on common dishwasher problems.

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