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500-S, 750-S, 1000-S, 1000-UP • INSTALLATION/OPERATION/SERVICE MANUAL • 24.
D A N G E R
DISCONNECT UNIT FROM
POWER SOURCE BEFORE
CLEANING OR SERVICING.
C A U T I O N
THIS SECTION IS PROVIDED FOR THE ASSISTANCE
OF QUALIFIED SERVICE TECHNICIANS ONLY AND
IS NOT INTENDED FOR USE BY UNTRAINED OR
UNAUTHORIZED SERVICE PERSONNEL.
This section is provided for the assistance of qualified technicians only and is not intended for use by
untrained or unauthorized service personnel. If your Alto-Shaam
®
unit is not operating properly, check the
following before calling your Authorized Alto-Shaam
®
Service Agent:
☛ Check the power flow to the unit. Plug in outlet? Circuit breaker switch at back of unit turned on?
Do not attempt to repair or service the holding cabinet beyond this point. Contact Alto-Shaam
®
for the
nearest authorized service agent. Repairs made by any other service agents without prior authorization
by Alto-Shaam® will void the warranty on the unit.
S E R V I C E
T R O U B L E S H O O T I N G - M A N U A L C O N T R O L
Error
C
ode
D
escription/Results
Possible Cause
S
ervice Required
E-10 Air Sensor Fault (shorted)
I
noperative Unit
Air sensor is shorted.
Air sensor defective?
Test air sensor by placing sensor in ice water bath 32°F (0°C) and using an
ohmmeter set on the ohm scale. The reading should be 100 ohms resistance. If it
is more than 2 ohms higher or lower, sensor needs to be replaced. If Ohm reading
is 100, replace display. If Ohm reading is not 100, replace sensor.
E-11 Air Sensor Fault (open)
Inoperative Unit
Air sensor is open or connection failure.
Air sensor defective? See above for air sensor test.
E-30 Under temperature
Oven will not reach set temperature
Unit door closed? Door gasket need replacement? Preheat skipped?
Unit overloaded or holding frozen product? Defective air sensor or probe?
Defective solid state relay? Bad wire connections or open heating cable?
If none of the above, contact Alto-Shaam Service Department.
E-31 Over temperature
Unit will shut down
Unit has exceeded its maximum allowable set temperature by 25 degrees for at
least 3 minutes. Unit will shut down.
Defective sensor or poor sensor connection?
Defective relay?
Shorted heater element?
If none of the above, contact Alto-Shaam Service Department.
E-70 Configuration error
Inoperative Unit
Contact Alto-Shaam Service Department for correct DIP-switch settings.
E-82
or
E-83
EEPROM Error - Bad Checksum
Inoperative Unit
Contact Alto-Shaam Service Department for help resetting the control.
E-90 Button shorted
Inoperative Control
Stuck button on control panel. Check buttons.
If control is still inoperative, contact Alto-Shaam Service Department.
E-91 Input failure
Contact Alto-Shaam Service Department.
-AC- Power Failure
Press any key to acknowledge.