Booking today · Miami, Los Angeles, Houston, New York and San Diego · three-hour arrival windows Independent commercial equipment repair · Every maker on this site Mon–Fri 7:00 AM - 8:00 PM · Sat 8:00 AM - 6:00 PM
(844) 393-0816 Schedule a Visit
Brand · Combi ovens

Rational Combi Oven Repair

Kitchens in Miami, Los Angeles, Houston, New York and San Diego call us for Rational combi ovens, from older SelfCookingCenter and CombiMaster units to the current iCombi Pro. Call us or fill out the online form to schedule service.

1kind of equipment
4model series listed
36error codes explained
30 daysworkmanship warranty
01What goes wrong

Common Rational problems we fix

In plain words, the way kitchen and laundry staff describe them when they call.

01

Service number shows on the display

02

Steam is weak or missing

03

Cleaning cycle stops partway

04

Gas oven will not ignite

05

Oven warns about overheating electronics

06

Core probe is not reading

Rational Generations We Repair

Our Rational work runs from the older SelfCookingCenter units to the current iCombi Pro and iCombi Classic. The SelfCookingCenter came in table-top sizes 61, 62, 101 and 102 and floor-standing sizes 201 and 202, and the whitefficiency version still works in many restaurant kitchens. We also see the older CombiMaster Plus and ClimaPlus Combi ovens, in electric and gas.

Service Numbers, Steam and Scale

A Service number on the display is our starting point. Many can be dismissed with the back button while the oven keeps cooking, so we ask what the oven was doing when the number appeared. Weak steam sends us to the water supply, the scale level in the steam generator and the level electrode. Scale builds fast where the water is hard, as in Houston, Los Angeles and San Diego, and an oven that is not descaled on schedule starts to show steam and cleaning messages. A CleanJet cycle that stops partway points us to the rinse step.

If you smell gas, step outside and call the gas utility right away. On gas ovens, a GAS RESET or a Service 32 or 33 message means the burner did not ignite. After the cause is fixed, the ignition controller has to be reset, because restarting the oven alone does not clear the lockout.

Filters, Older Units and Parts

Heat and grease in a busy kitchen load up the air filter under the control panel, and a clogged one lets the electronics run hot. We tell you plainly when an older oven is not worth another repair. You get the price in writing before any work, and every repair carries our 30-day workmanship warranty. We confirm the parts, such as the right ignition controller for your control generation, before the visit.

→Error codes

Rational codes and alarms

What the display or the blinking light means, what is safe to check, and when to stop and call us.

Ignition controller error 22Rational Combi Oven Error Code 22: Top Burner Not IgnitingIgnition controller error 38Rational Combi Oven Error Code 38: Flame After Bottom Valve ClosesIgnition controller error 42Rational Combi Oven Error Code 42: Bottom Burner Not IgnitingService 10Rational Combi Oven Error Code Service 10: High Water at SC PumpService 11Rational Combi Oven Error Code Service 11: CDS Sensor Too Many PulsesService 110Rational Combi Oven Error Code Service 110: CleanJet+care Cleaning MessageService 12Rational Combi Oven Error Code Service 12: CDS Sensor No SignalService 120Rational Combi Oven Error Code Service 120: Care Pump or ElectrodeService 14Rational Combi Oven Error Code Service 14: Level Electrode No WaterService 140.4Rational Combi Oven Error Code Service 140.4: Gas Warning Level 1-2Service 140.8Rational Combi Oven Error Code Service 140.8: Gas Lockout WarningService 20.xRational Combi Oven Error Code Service 20.x: Temperature SensorService 23Rational Combi Oven Error Code Service 23: Steam Relay ShortService 24Rational Combi Oven Error Code Service 24: Hot Air Relay ShortService 25Rational Combi Oven Error Code Service 25: CleanJet Water FlowService 26Rational Combi Oven Error Code Service 26: Drain Valve Stuck ClosedService 27Rational Combi Oven Error Code Service 27: Drain Valve Won't CloseService 28Rational Combi Oven Error Code Service 28: Steam Generator Too HotService 29Rational Combi Oven Error Code Service 29: Control Board Too HotService 31.xRational Combi Oven Error Code Service 31.x: Core Probe Reading WrongService 32.x (gas)Rational Combi Oven Error Code Service 32.x (gas): Ignition BoxService 32.xRational Combi Oven Error Code Service 32.x: Gas Combustion LockoutService 33 (gas units)Rational Combi Oven Error Code Service 33: Gas Unit MessageService 33.xRational Combi Oven Error Code Service 33.x: Gas Blower Control

All 36 Rational combi ovens codes

FAQRational questions
Can my Rational keep cooking when a Service number appears?

Often yes. Many Service messages can be dismissed with the back button and the oven keeps working. Write down the number and tell us when you call, so we can bring the right parts and judge how urgent the visit is.

Do you repair the older SelfCookingCenter and CombiMaster ovens?

Yes. They are older lines still in service in many kitchens. We repair them, and we say plainly when the cost of a repair is higher than it makes sense for the age of the oven.

Why does my gas Rational not light after I restart it?

After a failed ignition, the ignition controller has to be reset once the cause is fixed. Restarting the oven alone does not clear it. If you smell gas, leave the building and call the gas utility from outside.

Book a visit

Book Rational repair in Miami, Los Angeles, Houston, New York and San Diego

Tell us the maker, the model number from the data plate and what the unit is doing. We confirm a three-hour arrival window and give you a written price before any work starts.

☎ Call our office ▤ Schedule a Visit