Question about Fisher and Paykel 23 in. DD-603SS Built-in Dishwasher
Fisher and paykel top drawer dishwasher hose is 90% blocked at the outlet to the machine where the pipe does a u turn coming out of the machine. How do I unblock this - can I remove either the cover under the dishdrawer to get at the hose, or should I try to remove the housing inside the drawer to get at the hose connection?
(I have disconnected the pipe to the sink drain and put a metal drain unblocker up the hose as far as possible. I have also put some caustic soda through the system and forced it through with a plunger)
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
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Posted on Jan 02, 2017
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