Alto-Shaam 1220 Temperature sensor shorted to ground/faulty, Scale plugging drain pump, E80, E81

Models: 1220

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i n s t a l l a t i o n

ERROR CODES AND REASONS (continued)

Error

Display Shows

When does the error occur?

Possible reason

Code

 

 

 

 

 

 

 

E29

Probe Short to Frame

Activated if one or more of the temperature

• Connection issue at any of the temperature

 

 

sensors were connected to GND for 5 seconds.

sensors.

 

 

 

• Temperature sensor shorted to ground/faulty.

 

 

 

 

E34

DE (Drain) Pump Failure

Activated if water level did not drop below

• Problem with water level probe.

 

 

the low level sensor in the generator during a

• Scale build-up inside steam generator.

 

 

steam generator flush.

 

 

 

 

 

 

• Scale plugging drain pump.

 

 

 

• Faulty drain pump.

 

 

 

 

E35

Venting Error

Activated when vent switch reads open (vent

• Alignment issue between motor cam and

 

 

closed) when it should be closed (vent open), or

micro switch.

 

 

when it reads closed (vent open) when it should

• Connection issue at micro switch.

 

 

be open (vent closed).

 

 

 

 

• Connection issue at control.

 

 

 

• Faulty vent switch.

 

 

 

• Faulty vent motor.

 

 

 

 

E36

Steam Temp High

Activated when oven temperature probe (N-6)

• Water supply is shut off while unit is running

 

 

measures a temperature in excess of 395°F

in Steam or Combi mode.

 

 

when running in Steam or Combi mode.

• Plugged or faulty Y-1 solenoid.

 

 

 

 

 

 

• Obstruction between Y-01 solenoid and water

 

 

 

inlet.

 

 

 

 

E80

ID Error

Control is unable to detect whether unit is gas

• Connection issue at X-3 personality jumper.

 

 

or electric.

• Faulty control.

 

 

 

 

 

 

 

E81

Program Memory Error

Temperature value or time value of a program

• Program was generated in °C and control has

 

 

step is not allowed.

been switched to °F.

 

 

 

• Program was generated in °F and control has

 

 

 

been switched to °C.

 

 

 

 

E82

WP Error

Temperature value or time value of current

• Delete program and reinstall.

 

 

cooking algorithm is out of allowed array.

 

 

 

 

 

E83

Algo Error

Cooking algorithm sent by operating module

• Software versions of control unit and

 

 

(BM) is unknown to control unit (SM).

operating module are incompatible.

 

 

 

• Software error in operating module.

 

 

 

 

E96

Connection Error

No or bad communication between control unit

• Connection issue at ribbon cable on display or

 

 

(SM) and operating module (BM).

relay board.

 

 

 

• Faulty ribbon cable.

 

 

 

• Software versions of control unit and

 

 

 

operating module are incompatible.

 

 

 

 

continued on next page

CombiTherm® ES series • electric INSTALLATION MANUAL #MN-28897 • 32.

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Alto-Shaam 1220 Temperature sensor shorted to ground/faulty, Scale plugging drain pump, Faulty drain pump, E80, E81, E82

1220 specifications

Alto-Shaam is known for its innovative cooking and holding equipment designed for the foodservice industry, and their VHes product line is no exception. This range includes models VHes-10, VHes-5, 1220, 610, and 714, each built with unique features and advanced technologies to meet the demands of modern kitchens.

The VHes-10 and VHes-5 models are equipped with Alto-Shaam’s exclusive Halo Heat technology, which provides precise temperature control and ensures even heat distribution. This technology gently holds food at the perfect serving temperature without drying it out, enhancing both flavor and texture. These models also feature Energy Star certification, reflecting their energy-efficient design, which helps kitchens reduce operational costs while supporting sustainability goals.

The VHes-10 boasts a larger capacity, capable of accommodating more food items, while the VHes-5 is designed for smaller operations or limited spaces, providing versatility in the kitchen. Both models come with digital control panels for easy temperature adjustments and monitoring, ensuring that chefs can maintain optimal conditions at all times.

Moving on to the 1220, 610, and 714 models, these units cater to diverse holding needs within foodservice operations. Each model is designed to be user-friendly, with clear digital displays and intuitive controls that allow chefs to quickly set and adjust holding temperatures. The 1220 model is particularly popular for its spacious design, which supports larger quantities of food, making it ideal for bustling kitchens and catered events.

The 610 and 714 models are engineered for flexibility, allowing operators to effectively manage their food items in various settings. Their compact sizes combined with smart technology make them an excellent choice for both front-line service environments and back-of-house operations. Notably, all these models support multiple food types, enabling establishments to hold everything from vegetables to protein dishes without compromising quality.

In summary, Alto-Shaam’s VHes series, including the VHes-10, VHes-5, 1220, 610, and 714, integrates cutting-edge technologies such as Halo Heat and efficient designs into versatile equipment. With an emphasis on energy savings, precise temperature control, and user convenience, these models are vital for any foodservice operation seeking to elevate their food holding and serving capabilities.