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Here is the link for the user manual if you need it;
http://www.serviceforce.co.uk/pdfs/U01296.pdf
Check page 14 about cleaning the large filter and removing the lower spray arm to do so, you will probably find a blockage there that is stopping the water flow (the rotation is driven by water pressure).
If there is nothing visible and cleaning in there makes no difference, first check that the water can freely run through the spray arm by simply holding it upside down and filling it with water, checking that it comes out of ALL the holes (think of them as jets) and that there is no significant limescale build up. If you are unsure or the holes seem blocked, put the spray arm in a bowl of vinegar for a half day or so and the limescale should be dissolved. There can also possibly be particles of food blocking it (rice is a favourite) which can only really be removed by a bit of persistence with a tap or hose - a garden hose in the garden is the easiest and least traumatic way. (some spray arms can be opened up - if it can be it should be fairly obvious but it is unclear from the manual and unlikely for this model).
Make sure when you reassemble it that everything is exactly in the right place and tightened down properly
if still no luck, then check that the water inlet hose is not kinked, the tap (if present) on the inlet hose at the wall is not half off, and the filter in the hose where it joins the machine is not blocked (to check this you have to turn off the water supply and remove the hose). Inadequate water pressure due to a restriction in the pipe will stop the spray arm spinning.
The last thing to try is a complete descale - there could be limescale blocking the water in a part you can't get to - a bottle of vinegar on a hot cycle with nothing in the machine works, or you can buy "dishwasher cleaners" which are usually strong citric acid or similar that you just put in as if it was detergent and run (again empty). If you haven't done this recently it is almost certainly worth doing anyway.
In Summary if there is water at mains pressure getting to the spray arm and the holes in it are clear and it is fitted properly, then it will spin.
Hope this helps - please ask again if you need any help carrying out these procedures :)
Remove hoses and the strainers at the back and check for limescale debris. Check for mains water pressure while you have the hose off. If they are clear, you need a new water inlet valve.
First turn the water off and remove the water inlet hoses and check the strainers in the connector on the machine. They can become clocked with limescale and debris.
If they are okay, you need a new water inlet solenoid valve.
Turn off power to dishwasher at the breaker or fuse panel.Turn off water supply usually found under sink. Remove the front kick panel and remove water supply line from the valve,remove clamp to hose on dishwasher and remove hose. Remove electrical connectors from the inlet valve and remove screws holding valve to cabinet . Reverse steps to install. Slowly turn on water and listen and look for leaks if all is well turn on the power and start washing.
check for limescale on inlet filter on end of hoses or at inlet (gauze with rubber ring on ) if mains lights come up fine may be inlet valve gone and i know this is obvious but check that the water valve hasnt been knocked shut by something under the sink
Step 1 Turnoff the power to the dishwasher. Dishwashers are direct fed straightfrom a dedicated breaker in your electrical panel. Find the breakermarked "dishwasher" and turn it off. Return to the dishwasher and tryto run it to make sure that you've got the right breaker.
Step 2 Lookat the bottom front of the dishwasher; here you will see a set ofscrews holding a panel in place. Remove the screws and pull away thepanels (there may be two of them depending on your make and model). Thewater inlet valve is usually located directly in the front, on theleft-hand side. It is usually blue in color.
Step 3 Remove the two screws holding the water inlet valve bracket to the dishwasher's frame.
Step 4 Withthe inlet valve hanging free, pull the slide-on connector off of itsterminals. Make a note of which wire goes to which terminal, so you canhook the new one up correctly.
Step 5 Setyour multimeter to read ohms (the Greek symbol for Omega) and touch oneprobe to each of the water inlet valve's terminals. If the multimeterindicates a reading of "infinity," then the valve is faulty and needsto be replaced. If you get a resistance reading, then the valve isprobably good and your problem may be elsewhere.
How to Replace the Water Inlet Valve
Step 1 Withthe power already off and the leads disconnected from the inlet valve,the only thing you have left to do to remove it is to disconnect thevalve from the waterlines. Before you remove any of the lines, be sureyou turn the water feed OFF. The shut-off valve is usually locatedunderneath your kitchen sink.
Step 2 Place a towel underneath the water inlet valve. This will help absorb any excess water left in the hoses when you disconnect them.
Step 3 Usethe adjustable wrench to loosen the fitting on the water feed hose.Once it is loosened, you can unscrew it the rest of the way by hand.
Step 4 Takeyour pliers and use them to squeeze open the compression ring on therubber hose. With the compression ring open, slide it backwards, awayfrom the inlet valve, so it is no longer over the valve's nipple.
Step 5 Pull the rubber hose off of the valve's nipple. If it is holding tight, try twisting it to break the seal.
Step 6 Oncethe bad water inlet valve is removed, take the replacement and slidethe rubber hose over its nipple. Use the pliers to open up thecompression clamp, slide it over the hose until it is over the nippleand release.
Step 7 WrapTeflon tape around the threads on the inlet valve, and then screw thewater feeder hose fitting over the threaded section. Secure it by usingthe wrench. Be careful you don't overtighten or you could cause a leak.
Step 8 Turnthe water back on to check for leaks. If no water droplets appear, thensecure the water inlet valve to the housing of the dishwasher with thetwo screws you removed earlier.
Step 9 Slide the wire connector over the terminals on the valve and replace the front access panel covers.
Step 10 Turnthe circuit breaker back on and run your dishwasher. You should hearthe valve opening up to release water into your dishwasher as the cyclebegins.
regards
iversh
A very helpful rating is appreciated for responding to your
if you remove the panel at the bottom of the dishwasher you will see
either a copper hard pipe, or a flexible steel hose leading into the
water inlet valve.
BE SURE TO CUT OFF THE WATER SUPPLY. It is
probably located under the kitchen sink- just follow the water line
until you see a cutoff handle.
The valve is activated by an
electromagnet- you will see a plug with two wires leading into the
cylinder shaped solenoid (the magnet). After turning off the water, and
disconnecting the water supply and the hose to the machine and the
wires (it's a tight space, so be patient) check and see if the screen
(just inside where the water supply line connects to the valve) is
clogged with limescale. If it is, you can clean it out fairly well with
CLR or Limeaway, and that might fix your problem. If it doesn't you can order a new one online, or take it to an appliance parts store if there is one in your area. They are pretty common.
Most water supply lines are attached to the hot water supply under the kitchen sink. If not it may be accessible from the basement somewhere under where the dishwasher is located.
Regarding the issue with the dishwasher, the inlet water valve is no longer closing because of the limescale that has built up inside. That is why it fills on it's own even when it's off. Instead of replacing the dishwasher you could just replace the inlet water valve if you want to get a few more years out of it.
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