Code decoder
Alto-Shaam error codes
Pick the maker and the equipment, or type the code. Each page says what the code means on that control, what is safe to check and when to stop.
- Codes
- 2,442
- Makers with codes
- 98
- Updated
- November 2026
E91Alto-Shaam Combi Oven Error Code E91: Upper Gas Blower Not at SpeedE92Alto-Shaam Combi Oven Error Code E92: Control Board Not RespondingE93Alto-Shaam Combi Oven Error Code E93: Boards in Different StatesE94Alto-Shaam Combi Oven Error Code E94: No Signal to Interface BoardE220-E228Alto-Shaam Combi Oven Error Codes E220-E228: Lower VFD ErrorsE289 / E290Alto-Shaam Combi Oven Error Codes E289/E290: Unknown VFD ErrorE100Alto-Shaam CT Express Combi Error Code E100: Board Version MismatchE101Alto-Shaam CT Express Combi Error Code E101: Relay Board VersionE102Alto-Shaam CT Express Combi Error Code E102: Ventless Hood FiltersE103Alto-Shaam CT Express Combi Error Code E103: Ventless Hood PressureE104Alto-Shaam CT Express Combi Error Code E104: Gas Ignition FailureE105Alto-Shaam CT Express Combi Error Code E105: Low Water PressureE106Alto-Shaam CT Express Combi Error Code E106: Cleaning PumpE107Alto-Shaam CT Express Combi Error Code E107: Boiler Drain PumpE26Alto-Shaam CT Express Combi Error Code E26: N8 Safety Probe OpenE27Alto-Shaam CT Express Combi Error Code E27: Element Too HotE93Alto-Shaam CT Express Combi Error Code E93: Display Link ErrorE98Alto-Shaam CT Express Combi Error Code E98: Unit MismatchE99Alto-Shaam CT Express Combi Error Code E99: Unit Mismatch
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Code not listed, or no code at all?
A unit that shows nothing often points to power or the control. Call us with the maker and model number and we talk it through.