F173 on a Miele dishwasher means the water inlet is blocked or restricted. The manual covers the stopcock, the inlet filter and low pressure.
Model compatibility
Miele reuses codes across series and model years, so F173 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What thiscode means
Water inlet blocked or restricted; inlet filter soiled or water pressure too low.
F173 summary
Display: F173. Meaning: the water inlet is blocked or restricted. Likely reasons given by Miele: the stopcock is shut, the inlet filter is dirty, or the pressure at the hose is too low.
At a glance
Code
F173
What it means
Water inlet blocked or restricted; inlet filter soiled or water pressure too low.
What you can check
Switch off, unplug the dishwasher and shut the stopcock first. Then open the stopcock, remove the water intake valve and seal, rinse the plastic filter under running water, and refit everything seated properly.
When to call a technician
Call for a service visit if F173 still shows after cleaning the filter, or if weak flow at the hose points to low water pressure that you cannot sort out with the building.
Before you start
Safety comes first because the plastic water-connection housing contains an electrical valve and cannot go into water. Switch off, unplug from the mains, then shut the stopcock.
Owner steps
Open the stopcock.
Remove the water intake valve, then lift out the seal.
Pull the plastic filter out by its bar using combination or pointed pliers and rinse it with running water.
Refit filter and seal so both are seated properly, and screw the valve back on the stopcock.
Open the stopcock gradually; if you see dripping, tighten the connection.
Weak flow at the hose is a separate cause. Make the dishwasher the priority for incoming water and ask the facility manager or a plumber.
Compare with F19 (flow meter defective), F14 (blocked circulation pump) and F172 (technical fault).
Still showing F173? Miele points you to its Customer Service or an online repair booking.
Book Miele dishwasher service
In the Miami, New York, Houston, Los Angeles and San Diego metro areas, Miele dishwasher service is booked on (844) 459-5005. Mention the code on the display, your model number and any steps already taken. The dishwasher repair page explains more.
Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Get started
Seeing this code on your Miele appliance?
Book a specialist Miele service visit for a clear estimate and approval before any repair. Experienced technicians, clear diagnostics, and workmanship coverage on completed repairs.
