Service manual

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Frequently Asked Questions
(ADS Conveyor & High Temp Dishmachines)
“What is the dishmachine’s operation—how does it work?”
Operation: Be sure all the screen fi lters, drain stoppers, spray arms, and curtains are put in their correct
place. Turn on the master switch located on the side of the control box. The machine will fi ll automatically.
Prepare a rack of soiled dishes and push the rack into the machine. The conveyor will start automatically
and push the rack through the wash and rinse sections then exit the other side.
The HT-25 single rack door machine will start when you close the door. The HT-25 will begin a timed wash
cycle, the wash motor stops and the fi nal rinse solenoid will spray clean heated water for 10-seconds,
ending when the indicator lights turn off.
Installation Errors
Installation errors account for a high percentage of all service calls and questions. Please refer to the ADS
Installation Instructions for specifi c models. These documents are available on-line at
(www.americandish.com) and also come with each new machine. They can be emailed or faxed during
normal working hours. Electrical requirements, plumbing needs, control adjustments, cautions, and start up
information are contained in the Installation Instructions.
Category 1, ELECTRICAL WIRING ISSUES
“Why did the wire burn at its connection?”
A burned wire with black or green colored copper and the insulation melted back an inch or two indicates
a loose connection, looseness creates resistance, electrical resistance produces heat. Over time this heat
will melt and char plastic insulation. The heating source will be located at the end of the burned wire or the
connection point. A burned wire can also come from a shorted switch that causes the same resistance as a
loose connection.
“What size wire should I use to power the machine?”
The manufacturer recommends NEC wire codes--or better. For a 208v, 60-amp machine, minimum 6 gauge
wire is recommended.
“Can you use a fuse instead of circuit breakers?”
Yes, as long as it is a 60-amp fuse for a 44-inch conveyor III-phase, 90-amp for a 66-inch conveyor
three-phase, or 50-amp for an HT-25, three-phase w/ booster. See Installation Instructions for single-phase
equipment.
“Can the machine be plugged into an outlet like a household dryer?”
The answer is no. According to electrical code, 60 amp service needs to be connected and hard-wired using
screw/terminals to its own circuit breaker. Further, Underwriters Laboratory and building code require the
circuit breaker to be clearly labeled “dishwasher.”