A stainless door-type dish machine in a restaurant dish room with its hood raised and its wash chamber empty, a clean wire rack on the landing table beside it, the tiled floor dry, nobody at the dish machine.

Miele Professional F18: a technical problem in the dish machine's water intake

Miele lists F18 under water intake problems but separates it from the simple Intake message: F18 is a technical problem rather than a closed faucet or a dirty inlet filter, so there is no owner fix.

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Mon–Sat, 8am–8pm

  • Water, fill and drain
  • Dish machine repair
  • Source: Miele Professional

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or call (844) 571-4566

What F18
actually means.

Miele lists F18 under water intake problems but separates it from the simple Intake message: F18 is a technical problem rather than a closed faucet or a dirty inlet filter, so there is no owner fix.

Miele Professional commercial appliance display

What to do when F18 shows on the commercial appliance

Kind of codeWater, fill and drain

Water is not arriving, not reaching its level, not heating or not leaving on time. A dish machine may be short of fill because a supply valve is half closed or its line strainer is clogged, it may drain slowly through a scrap basket full of debris, or its booster may be too scaled to heat the rinse; a combi's steam generator may be scaled or its water treatment exhausted; a washer-extractor may time out on a slow drain. Opening the supply valve, cleaning strainers with the unit off and checking the drain line are fair; a pump, a fill valve, a heater or a leak near wiring is a visit.

Usually leads toDish machine repair

Undercounter, door-type and conveyor dish machines: tank heaters, boosters, wash pumps, fill and drain valves.

Shows up asCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone.

MakeMiele Professional

Miele Professional machines in a small business laundry are usually visited at the start of the day, before the first full load.

SourceMiele Professional PFD 101 U / PFD 102i commercial dish machine operating instructions, en-US (media.miele.com)

Miele Professional PFD 101 U built-under and PFD 102 i integrated commercial dish machines (en-US operating instructions); the PFD 401 U and PFD 404 U fresh-water machines are sold alongside them.

Before you book,
in this order.

Each step comes from Miele Professional's own guidance for F18 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.

01

Turn the machine off.

02

Close the water faucet to the machine.

03

Book a visit; Miele sends F18 to service rather than to the owner.

Still there?

It usually turns into dish machine repair. Book with the code and the model number.

What not to do

F18 is not the same as the Intake message, which usually clears once the faucet is opened and the filter is cleaned. It is also not the Waterproof leak message, which has its own wording.

Where F18 usually leads

Dish machine repair.

Dish machine tank heater or booster element, thermostat, fill valve, float switch, drain valve, wash pump seal or motor, conveyor drive · moderate.

In Miele Professional's own words

A technical fault has occurred.
Miele Professional PFD 101 U / PFD 102i commercial dish machine operating instructions, en-US (media.miele.com) Miele Professional PFD 101 U / PFD 102i commercial dish machine operating instructions, en-US (media.miele.com)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Miele Professional PFD 101 U built-under and PFD 102 i integrated commercial dish machines (en-US operating instructions); the PFD 401 U and PFD 404 U fresh-water machines are sold alongside them.

Miele Professional F18 commercial appliance repair,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas
A restaurant team working a busy commercial kitchen line.
For the heart of your home.

Questions
about F18.

Can I clear F18 myself?
Turn the machine off. If it comes back, it needs a visit.
What is the difference between F18 and Intake on a Miele Professional?
Intake points to a supply problem the owner can check, such as a closed faucet or dirty inlet filter. F18 is a technical problem inside the machine.
Is it safe to leave the faucet open after F18?
Miele asks for the faucet to be closed. That keeps a problem in the inlet system from turning into a leak.
Can low water pressure cause F18?
Low pressure is listed under the Intake message rather than F18. With F18 on the display, a technician needs to test the inlet parts.

Back to your everyday

Still showing F18?

A booking with a code goes further when it has the code as shown, the model and serial from the data plate, and a word on whether the unit still holds temperature, heats, rinses or spins. With those three, the office can match the likely part to your unit the same day.

(844) 571-4566 Schedule a repair