A gray electrical disconnect box on a tiled commercial kitchen wall beside a stainless convection oven, the oven's heavy power cord running up to it, the disconnect handle set to off, nobody near it.

Rational Service 50: the oven clock needs setting

The iCombi Pro keeps a clock for logs, cleaning schedules and HACCP records.

(844) 571-4566

Mon–Sat, 8am–8pm

  • Controls and power
  • Commercial controls and board repair
  • Source: Rational

Book a visit

Three short steps, about a minute.

or call (844) 571-4566

What Service 50
actually means.

The iCombi Pro keeps a clock for logs, cleaning schedules and HACCP records. Service 50 reports that the clock on the CPU has not been set. Rational's instruction is simply to set the date and time.

Rational commercial appliance display · also shown as 50

What to do when Service 50 shows on the commercial appliance

Before you book,
in this order.

Each step comes from Rational's own guidance for Service 50 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.

01

Open the settings and set the date and time.

02

If the oven is connected to ConnectedCooking, turn on time synchronization so the clock is set automatically.

03

If Service 50 comes back after every power cut, book a visit, since Rational lists a defective battery as Service 51.

Still there?

It usually turns into commercial controls and board repair. Book with the code and the model number.

What not to do

Service 50 is not a heating or water problem and does not stop cooking. When it keeps returning, the likely companion is Service 51, a defective battery.

What you may
notice with it.

The commercial appliance problem Service 50 tends to arrive with. Answer these at the commercial appliance before anyone is booked.

All problems

Where Service 50 usually leads

Commercial controls and board repair.

Controller, touch panel, probe or sensor, relay, contactor, power supply, door switch or interlock, tested before anything is changed · moderate.

In Rational's own words

The real time clock on the CPU is not initialised. Set the date and time.
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 50 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 Service 50.

Can I clear Service 50 myself?
Open the settings and set the date and time. If it comes back, it needs a visit.
How do I clear Service 50 on a Rational?
Set the date and time in the settings. The message is only about the clock.
Why does Service 50 matter for a Rational in a busy kitchen?
HACCP records and cleaning schedules use that clock. A wrong date can make your food safety log useless for an inspector.
Why does my Rational lose its clock after each power cut?
The CPU battery may be weak; Rational numbers that as Service 51. Book a visit so the battery can be replaced.

Back to your everyday

Still showing Service 50?

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