TROUBLESHOOTING
De l uxe C ontro l Cook & Ho l d ▪ Oper a tor’s Manual ▪ MN- 46 7 0 8 ▪ Rev 1 ▪ 11/20
91
E-30 Under Temperature
Cavity temperature remains
25°F / 14° C below target for
more than 90 minutes.
Troubleshoot cavity heating
element.
E-31 Over Temperature
Cavity temperature is 50°F
/ 28°C above max allowable
cook temp of 325°F / 163°C.
1. Cooling Fan not operating
2. Installation clearance
requirements not met.
E-78 Under Voltage
Supply voltage falls below
200V (error doesn't show on
screen).
Correct the supply voltage.
E-79 Over Voltage
Supply voltage exceeds 250V
(error doesn't show on screen).
Correct the supply voltage.
E-94 Communication
No signal transfer for more
than 5 seconds between the
Interface Board and the
Control Board.
1. Connection of Modbus Cable
2. Modbus Cable
3. Control Board
4. Interface Board
E-109
High Limit NOTE: Any oven experiencing
this error should be investigated by an
authorized Alto-Shaam service provider.
Open circuit detected across
High Limit Switch
1.Heat Relay(s) stuck closed
2.Connection between High
Limit Switch and Control Board
3.High Limit Switch
DELUXE CONTROL
Code Description Cause Remedy
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