Troubleshooting Checklist; Options And Accessories - Alto-Shaam CH-75 Operation And Care Manual

TROUBLE
Unit does not operate.
Cooking temperature not correct.
Holding temperature not correct.
Timer runs down, but oven will not
go into HOLD.
Cook thermostat erratic — will not
hold calibration.
Hold thermostat erratic — will not
hold calibration.
Oven goes from cooking temperature
to cold.
Oven will not go into cook cycle
when timer and cook thermostat are ON.
It takes too long to cook.
(Temperature O.K.)
Cannot control temperature but
thermostats check O.K.
DESCRIPTION
Bumper Guards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5221
Carving Holders
—Prime Rib Holder . . . . . . . . . . . . . . . . . . . . . . . HL-2635
—Ship Round Holder . . . . . . . . . . . . . . . . . . . . . . . . . 4459
Casters, 5" (127mm). . . . . . . . . . . . . . . . . . . . . . . . . . 4007
Cylinder Key Lock . . . . . . . . . . . . . . . . . . . . . . . LK-22567
Drip Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1062
Legs, 6" (152mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5205
6
TROUBLE SHOOTING CHECKLIST
POSSIBLE CAUSE
Insufficient electric power unit.
Defective plug or cord.
Power switch defective.
Cook thermostat out of calibration.
Hold thermostat out of calibration.
Timer not de-energizing cook circuit.
Cook thermostat.
Hold thermostat.
Hold thermostat.
Timer or contactor.
Heating element open, resulting in
low wattage.
Heating element grounded.
O P T I O N S & AC C E S S O R I E S
ITEM
Operation and Care Manual #861
Check power source.
Check and repair if necessary.
Replace.
Calibrate.
Calibrate.
Replace timer.
Replace thermostat.
Replace thermostat.
Replace hold thermostat.
With timer turned ON, line voltage
should appear across term. 2 and 3
of timer. If not, replace timer.
If line voltage does appear across term.
2 and 3 of timer, it should also appear
across holding coil of contactor.
If line voltage does appear across
holding coil, and it won't close its
contacts, replace contactor.
Replace element.
Replace element.
DESCRIPTION
Pocket Thermometer, °F . . . . . . . . . . . . . . . . . . . . . TH-3300
Pocket Thermometer, °C. . . . . . . . . . . . . . . . . . . . . TH-3412
Security Panel & Key Lock . . . . . . . . . . . . . . . . . . . . . 14374
Shelf, Stainless Steel
—Rib Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SH-2743
—Wire, Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SH-2324
Stacking Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4011
Thermostat, 250°F (120°C) Limit . . . . . . . . . . . . . . TT-3058
REMEDY
ITEM