Alto-Shaam E92: the display cannot reach the control board
The CTP splits its electronics between an interface board behind the display and a control board that runs the heating.
Mon–Sat, 8am–8pm
- Controls and power
- Commercial controls and board repair
- Source: Alto-Shaam
Book a visit
Three short steps, about a minute.
or call (844) 571-4566
Loading appointment form…
The appointment form couldn’t load. Please try again.
What E92
actually means.
The CTP splits its electronics between an interface board behind the display and a control board that runs the heating. They talk over a CAN cable. E92 is called out when the control board does not answer.
Alto-Shaam commercial appliance display · also shown as E93, E94
What to do when E92 shows on the commercial applianceKind of codeControls and power
The controller itself is reporting trouble, or the supply behind it is: a display with dead segments, a keypad that stopped responding after steam or degreaser got behind it, relays that stick, stored recipes or cycles that vanished overnight, a blown control fuse, or one leg of a three-phase feed missing so half the heat or the pump is gone. A full power cycle at the breaker, done as the manual describes, clears a passing glitch; a code that returns, a scorched smell or any sign of moisture behind the panel means the breaker stays off, and that is a visit.
Usually leads toCommercial controls and board repair
Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so.
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.
MakeAlto-Shaam
An Alto-Shaam call is usually booked for the hours between the last plate and the prep crew, so the cabinet can cool and the tech can open it without holding up service.
SourceAlto-Shaam Combitherm CT PROformance Series operator's manual, MN-35948 Rev 21 (10/21) (Wayback copy)
Combitherm CT PROformance (CTP) combi ovens, error code table in operator's manual MN-35948 Rev 21.
Before you book,
in this order.
Each step comes from Alto-Shaam's own guidance for E92 on its commercial appliances. Follow it to the end: the last card says whether this is a visit.
Switch the oven off, disconnect power, reconnect it and switch the oven on, as the manual lists first.
Note whether the code came back straight away or after some time.
Book a visit if E92 returns; the CAN cable and board connectors sit behind panels.
Still there?
It usually turns into commercial controls and board repair. Book with the code and the model number.
What not to do
E92 is one of three communication codes; E93 means the two boards are in different states, and E94 means no signal for more than 20 seconds. None of them reports heating or water trouble directly.
What you may
notice with it.
The commercial appliance problem E92 tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problems
Where E92 usually leads
Commercial controls and board repair.
Alto-Shaam
commercial appliances.
An Alto-Shaam call is usually booked for the hours between the last plate and the prep crew, so the cabinet can cool and the tech can open it without holding up service.
Alto-Shaam commercial appliance repairMore Alto-Shaam codes
All 15 Alto-Shaam codesControls and power on other makes
Commercial cold storage
Reach-in and pass-through cabinets, walk-in coolers and walk-in freezers, prep and sandwich tables, undercounter units and blast chillers that hold a kitchen's food at safe temperatures.
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 Alto-Shaam's own words
No response from the Control Board (CB) to the Interface Board (IB).
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Combitherm CT PROformance (CTP) combi ovens, error code table in operator's manual MN-35948 Rev 21.
Alto-Shaam E92 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 E92.
Can I clear E92 myself?
How do I clear E92 on an Alto-Shaam?
What causes E92 to keep returning on an Alto-Shaam?
Are E92, E93 and E94 on an Alto-Shaam the same problem?
Back to your everyday
Still showing E92?
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.