Fault code 30 has come up on my dishwasher how do i fix it

Well it is a drain blockage code. Check the pipe. I had a blockage caused by the stalk off an apple and an accumulation of lint!

Miele Dishwasher Error Code = Fault code F11 (Drainage) = Water not draining away. Cause Of Error/Fault Code = Filter combination in the cabinet is blocked.Jun 30, 2016

Miele Dishwasher Error Codes Display & Light Indicator Codes

Videos as well

https://www.google.com/search?q=Miele+dishwasher+shows+code+F11

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Dishwasher Error, Fault or Function Codes - GE Appliances

products.geappliances.com/appliance/gea-support-search-content?...

Fault codes are programmed in many electronic dishwasher controls. ... the power at the circuit breaker for about 30 seconds and then reset the dishwasher. ... coming into the dishwasher should be at least 120 degrees F. Run the faucet ...

Dishwasher Fault Codes « Tips, Tricks & Recipes

www.appliancefactoryparts.com/blog/2010/02/dishwasher-fault-codes/

Feb 18, 2010 - Fault codes can and do vary from manufacturer to manufacturer, even between models ... than 95 seconds, Check drain line, if clear, check for a restricted drain valve in pump ... Check temps to dishwasher 120?°F needed.

what brand is it ? then google the brand and the fault no. and you should get an explanation of the code.

http://www.ukwhitegoods.co.uk/help/fix-it-yourself/fault-codes/dishwasher-fault-codes/3058-bosch-sms-series-dishwasher-fault-codes.html

http://www.ukwhitegoods.co.uk/help/fix-it-yourself/fault-codes/dishwasher-fault-codes/3048-whirlpool-dishwasher-a-clones-fault-codes.html

Hi,
It is probably a drain fault. Try checking the drain spigot at the sink end where the drain hose connects as these are usually the cause of most dishwasher faults.Or else try checking the airgap at the top of your sink, if nothing there then check the end of the drain line usually connected to the garbage disposal if you have one. I would reccomend disconnecting the end of the drain line and putting it into a bucket. Let the dishwasher run for 30 seconds and if it drains then its a problem with your garbage disposal. If not contact Miele technical support nearby to troubleshoot the fault code

I took the bottom cover panel off even though there was another panel behind it the plastic tray nderneath was full of waste water. I took the 2nd panel off and found that a rubber cap attached to the waste pump has a hole in it, I got the replacement part for $5.00AU and the dishwasher is now working fine.