Question about Fisher and Paykel 24 in. DD603H W Built-in Dishwasher
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Posted on Jan 02, 2017
How do you know the hose is blocked at all? It's rare for that to happen, I work on these machines daily as I am a Factory Authorized tech. You need to be careful in your approach to this, that is an expensive machine and it can be damaged by improper service procedures.
For starters, there is a flap valve on the end of the drain hose that would prevent you from introducing any sort of pressure backwards into the machine via the drain hose. For example, if you took and tried to blow air thru the drain hose outlet end, you would force that flap closed and create pressure in the hose. Also putting caustic drain cleaning substances is very, very bad for your machine and can cause some serious damage.
I will be happy to try to assist you, but let's start at the begining, shall we? What prompted you to conclude that the drain hose is 90% blocked? The first thing you should do is take out the rack, wash arm and tha large stainless steel filter plate. Next, pull the rotor up and out of the pump base (none of these procedures require tools) and make sure the grey impeller is not "freewheeling" or has become detached from the rotor shaft. The blue wash impeller on the top and the grey drain impeller on the bottom must be "one to one" meaning they are firmly connected to the shaft of the motor and turn together.
Next, check the tube or passageway in the drawer between the sump (where that small removeable filter screen is) and the pump's sump area (where you pulled up the rotor)
If you have any blockage, it will be in that tube.
There is some glitch here where I do not get notified of response to questions, so I will check back to this post.
Posted on Dec 14, 2008
It sounds like your problem is that when one drawer tries to drain, the waste water is being pushed back into the other drawer. I had this same problem. The problem is the two drains are commonly plumbed into a Y-connection just below the anti-siphon valve. Unfortunately, the path of least resistance for the waste water is sometimes to flow back into the opposite drawer instead of out the anti-siphon valve and into the sewer...!! Here is what solved this problem for me--purchase and install a true dual air-gap. With a dual, there is zero chance of cross draining. I did this over a year ago and the problem has been completely solved.
Posted on Oct 15, 2009
Go to diagnostic mode you can turn on the drain manually. The motor has 2 directions of operating: one for pump and the other for drain. When the LCD displays P1 it means wash, when it displays P2 it is for drain.
Posted on Nov 01, 2009
F1 means that your machine has activated the flood switch. check the drain hose that is connected to the sink pipe is not blocked. remove clip holding hose to pipe, put end of hose into a bucket and turn on cycle. it should start draining straight away. if it does drain into bucket stop cycle and clean nossel of sink pipe with a small screwdriver. then refit hose and turn on cycle. if it doesnt drain into bucket please reply and i will guide you thru how to check to see if you roto motor is jammed or faulty.good luck
Posted on May 06, 2010
Testimonial: "I have not tried your suggestion,but will tonight...Thanks for the fast reply....let you know how it goes...Thanks "
This video explains how to repair a double and single drawer fisher and paykel dishwasher.
Posted on Feb 26, 2011
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