Alto-Shaam 1000-UPS/EPL, Installation Operation & Maintenance

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T R O U B L E S H O O T I N G C H E C K L I S T
IN STA L L ATION / OPERATION / SERVIC E MA N UA L • 15.
S E R V I C E
TROUBLE POSSIBLE CAUSE REMEDY
Unit does not operate. Insufficient power supply. Check power source.
Defective power cord or plug. Check and replace if necessary.
No display in electronic control. Faulty power supply board. Check line voltage for 12V across
pins 7 and 8 on the power supply board
and across pins 1 and 2 on connector J3
on the electronic control.
Faulty electronic control. Replace control.
Cannot control temperature but Faulty relay Replace relay.
sensor and electronic control
checks O.K. Heating element grounded. Replace element.
Temperature readout incorrect. Dirty or faulty sensor. Check sensor at 32°F (0°C).
If Ohm reading is 100,
Faulty control. replace control.
If Ohm reading is not 100,
replace sensor.
E L E C T R O N I C C O N T R O L
Repairs should be made by authorized service agents only.
includes:
CB-3044 Cable Heating Element . . . . . . . . . . . . . . . . . 108 feet
CR-3226 Ring Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
IN-3488 Insulation Corner . . . . . . . . . . . . . . . . . . . . . . . 1 foot
BU-3105 Shoulder Bushing. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
BU-3106 Cup Bushing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ST-2439 Stud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
NU-2215 Hex Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SL-3063 Insulating Sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
TA-3540 Electrical Tape . . . . . . . . . . . . . . . . . . . . . . . . . . 1 roll
C A B L E H E A T I N G S E R V I C E K I T No. 4874
(one kit per compartment)