Rational Service 28.2: the cooking cabinet went past its temperature limit
The iCombi Pro watches the cooking cabinet against a safety limit.
Mon–Sat, 8am–8pm
- Temperature and alarms
- Reach-in and prep table repair
- Source: Rational
Book a visit
Three short steps, about a minute.
or call (844) 571-4566
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What Service 28.2
actually means.
The iCombi Pro watches the cooking cabinet against a safety limit. Service 28.2 reports that the limit was passed, which points at the heating or its control rather than the recipe. Rational lists cooking as not possible.
Rational commercial appliance display · also shown as 28.2
What to do when Service 28.2 shows on the commercial applianceKind of codeTemperature and alarms
The controller has seen a temperature outside the band it was set for and is saying so: a box above its alarm point, a fryer vat or an oven cavity that tripped its high-limit, or a dish machine rinse that never came up to heat. Often the cause sits outside the unit, such as a door left open during a delivery, a coil packed with grease, a kitchen far hotter than the maker allows or a booster fed cold water. Checking the door, the coil and the air around the unit is fair; move the product if a cold box stays above 41°F, and book the visit.
Usually leads toReach-in and prep table repair
Reach-ins, pass-throughs, prep tables and blast chillers: gaskets, hinges, fans, thermostats, condensers and compressors.
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 28.2 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.
Keep the cabinet shut while it cools by itself, and never spray water into it while hot.
Take the food out once it is safe to open and finish it elsewhere.
Book a visit and mention what the oven was doing when the message came up, such as grilling or a long hot air stage.
Still there?
It usually turns into reach-in and prep table repair. Book with the code and the model number.
What not to do
Service 28.2 is not the steam generator limit, which Rational numbers 28.1, and not 28.4, which still leaves hot air mode available. It is also different from Service 29, where the electronics board rather than the cabinet runs hot.
What you may
notice with it.
The commercial appliance problems Service 28.2 tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problems
Where Service 28.2 usually leads
Reach-in and prep table repair.
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 repairMore Rational codes
Temperature and alarms on other makes
In Rational's own words
The temperature limit of the cooking cabinet has been exceeded.
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 28.2 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 areasTampa BayFL · 31 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
Questions
about Service 28.2.
Can I clear Service 28.2 myself?
Is it dangerous when a Rational shows Service 28.2?
Can I reset Service 28.2 on my Rational and keep cooking?
What is the difference between Service 28.1 and 28.2 on a Rational?
Back to your everyday
Still showing Service 28.2?
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.