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500-S, 750-S, 1000-S, 1000-UP • INSTALLATION/OPERATION/SERVICE MANUAL • 25.
D A N G E R
DISCONNECT UNIT FROM
POWER SOURCE BEFORE
CLEANING OR SERVICING.
T R O U B L E P O S S I B L E C A U S E
Control will not turn on. The unit is not connected to a power source
(plugged in).
The main power switch is in the off position.
Insufficient voltage
Control operates but cannot control temperature. Defective air sensor or poor sensor connection.
Control is not calibrated.
Defective heating element or damaged heating
element connection.
Control operates but unit does not heat. Defective air sensor or poor sensor connection.
Control is not calibrated.
Open heating element or poor heating element
connection.
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.
T R O U B L E S H O O T I N G - E L E C T R O N I C C O N T R O L O P T I O N
S E R V I C E