Miele produces the best dishwashers on the market today, and RD Appliance Service, Corp. is i of the few Long Island appliance repair companies that have the skill and noesis to repair them.  They are high end machines…very tranquility, they wash well and last many years beyond the life span of a lesser quality make.  Yet, like all machines they practice break downward.  One of the most common failures to occur on a Miele dishwasher is the Water Proof System (WPS).  That's that mysterious greyness box under your sink.  What is that thing?

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Miele dishwasher WPS

The WPS is a dual water inlet valve.  The redundancy ensures that if ane valve fails to shut the other will, greatly reducing the chance of flooding your kitchen.  That brass part on the left attaches to the house plumbing, the box contains the two solenoids and the gray tube contains the h2o intake hose, the wiring and outer sleeve.  When the electronic calls for water the solenoids open and the h2o flows through the intake hose and into the dishwasher.

The outer sleeve acts a protection against leaks.  If the solenoids leak the water will flow along the outer sleeve and into the drip tray in the base of the dishwasher.  When plenty water accumulates the float switch volition be activated and the water intake volition stop.  The drain pump volition also exist activated until the machine is unplugged or the h2o is no longer nowadays in the drip tray.

Miele dishwasher WPS diagram

Miele dishwasher WPS diagram

The inlet to the WPS contains a filter and a restrictor.  The filter stops big debris from entering the system and the restrictor ensures correct water force per unit area.  The filters frequently go chock-full and can be easily cleaned.

Miele dishwasher WPS filter - in place

Miele dishwasher WPS filter – in place

Miele dishwasher WPS filter

Miele dishwasher WPS filter

Miele dishwasher restrictor - in place

Miele dishwasher WPS restrictor – in place

Miele dishwasher WPS restrictor

Miele dishwasher WPS restrictor

The Miele dishwasher service manual states:

The WaterProof System (WPS) consists of a number of interdependent safety features to provide protection confronting water leakage.

one. Protection against solenoid valve leakage:
Each water intake is controlled by an inlet valve. If this valve cannot shut properly due to some defect or blockage by a foreign object, a 2d inlet valve ensures that the water supply is close off.
2. Protection against water intake hose leakage:
If a leakage occurs, water flows along an outer hose sleeve surrounding the intake hose to the drip pan. Here a float switch so acts to switch off a microswitch which closes the inlet valves to cutting off the water supply.
three. Protection against dishwasher overflow:
If some defect has caused the h2o level in the appliance to rising then that it overflows into the drip pan, and the water quantity sensor has also failed, the float switch is activated. This switches off a microswitch which closes the inlet valves to cut off the h2o supply. At the aforementioned time the bleed pump is activated.

4. Protection confronting bleed pump failure or blocked drain path:

In this case the water level in the apparatus rises until it overflows into the drip pan where the bladder switch is activated. This switches off a microswitch which closes the inlet valves to cutting off the water supply.

RD Apparatus Service, Corp. Long Island Appliance Repair Since 1963. We are committed to abiding comeback. If yous need an appliance repair anywhere in Nassau County phone call RD Appliance Service, Corp. at 516-561-0523 or visit our website at http://world wide web.rdapplianceservice.com