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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.

Rational Service 11: water is not getting into the steam generator properly

Before the iCombi Pro can make steam, it has to fill its steam generator from the building water line.

(844) 571-4566

Mon–Sat, 8am–8pm

  • Water, fill and drain
  • Dish machine repair
  • Source: Rational

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Three short steps, about a minute.

or call (844) 571-4566

What Service 11
actually means.

Before the iCombi Pro can make steam, it has to fill its steam generator from the building water line. Service 11 reports that this intake is not doing its job. Rational lists cooking as still possible.

Rational commercial appliance display · also shown as 11

What to do when Service 11 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.

MakeRational

A Rational visit is timed after the evening cleaning cycle, when the cabinet is cool and the display can be read without a load inside.

SourceRATIONAL iCombi Pro floor units 20-1/1 and 20-2/1, original instructions for use (US English)

Listed in the error message tables of the iCombi Pro floor unit instructions for use (models 20-1/1 and 20-2/1, US English edition).

Before you book,
in this order.

Each step comes from Rational's own guidance for Service 11 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.

01

Check that the water shut-off valve feeding the oven is fully open and that no one has closed it for other plumbing work.

02

Look for a kinked or crushed inlet hose behind the unit without pulling the oven away from the wall.

03

If the valve is open and Service 11 stays, book a visit so the inlet and fill valve can be checked.

Still there?

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

What not to do

Service 11 is about the steam generator's own intake, not about the hand shower or the cleaning water. A problem with measuring how much water went in is reported separately as Service 12.

What you may
notice with it.

The commercial appliance problems Service 11 tends to arrive with. Answer these at the commercial appliance before anyone is booked.

All problems

Before you call

Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

All 8 causes, cheapest first

It also comes with

Close view of the dark touch control panel on the front of a stainless combi oven in a commercial kitchen, one abstract amber warning indicator glowing among unlit icons, the steam-fogged glass door blurred beside it. Problem

Commercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display

8 causes, cheapest first

Where Service 11 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.
Book a visit What the job involves

Rational
commercial appliances.

A Rational visit is timed after the evening cleaning cycle, when the cabinet is cool and the display can be read without a load inside.

Rational commercial appliance repair

More Rational codes

Service 10Service 20.1Service 25Service 28.2Service 29Service 31.1Service 32.1Service 40Service 41Service 42.1Service 47.1Service 50
All 15 Rational codes

Water, fill and drain on other makes

Alto-Shaam E01Blodgett Water Level ErrorCleveland LOW WATER lightDexter F2Frymaster E33Hatco LO H2OHobart 019Miele Professional F18
All 43 codes of this kind
A working restaurant cooking line under a stainless ventilation hood, two stainless gas fryers with baskets hanging above the oil, a flat griddle and a combi oven with a glass door beside them, the equipment clearly the subject, a cook seen only from behind and shoulders down at the far end of the line, warm kitchen light, small blue flames visible under the griddle. Rational builds this

Commercial cooking equipment

Fryers, griddles, charbroilers, restaurant ranges, convection and combi ovens, steamers, kettles, holding cabinets and toasters, on gas or electric, that make up the hot side of a kitchen line.

In Rational's own words

The water intake for the steam generator is malfunctioning.
RATIONAL iCombi Pro floor units 20-1/1 and 20-2/1, original instructions for use (US English) RATIONAL iCombi Pro floor units 20-1/1 and 20-2/1, original instructions for use (US English)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed in the error message tables of the iCombi Pro floor unit instructions for use (models 20-1/1 and 20-2/1, US English edition).

Rational Service 11 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

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

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

Questions
about Service 11.

Can I clear Service 11 myself?
Check that the water shut-off valve feeding the oven is fully open and that no one has closed it for other plumbing work. If it comes back, it needs a visit.
Why does my Rational iCombi Pro show Service 11 after plumbing work?
A closed or half-open shut-off valve is the easiest cause to rule out. Once the supply is back to normal, restart the oven; if the message returns, the intake itself needs a technician.
Is the steam on a Rational oven affected by Service 11?
It can be, because the steam generator depends on that fill. Rational still lists cooking as possible, so dry heat work carries on while you watch the moist modes.
Does a water filter cause Service 11 on a Rational combi?
A clogged filter cartridge on the supply can starve the intake, so ask whoever changes your filters when it was last replaced. The manual itself only names the intake, so a technician should confirm the cause.

Back to your everyday

Still showing Service 11?

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.

Schedule a repair Call (844) 571-4566
(844) 571-4566 Schedule a repair