B&C Technologies DI-475 Industrial - Manual (Page 38)

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SECTION 7
TROUBLESHOOTING
IMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and
THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE
REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING,
INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA
( Occupational Safety and Health Administration ) STANDARDS.
The information provided will help isolate the most probable component (s) associated
With the difficulty described. The experienced technician realizes, however, that a Loose
connection or broken/shorted wire may be at fault where electrical components
are concerned…not necessarily the suspected component itself. Electrical parts should
always
be checked for failure before being returned to the factory.
IMPORTANT: When replacing blown fuses, the replacement must be of the exact rating as
the
fuse being replaced. The information provided should not be misconstrued as
a handbook for use by an untrained person in making repairs
WARNING: ALL SERVICE AND TROUBLESHOOTING SHOULD BE PERFORMED
BY A QUALIFIED PROFESSIONALOR SERVICE AGENCY.
WARNING: WHILE MAKING REPAIRS, OBSERVE ALL SAFETY PRECAUTIONS
DISPLAYED ON THE DRYER OR SPECIFIED IN THIS MANUAL
A. No display…
1. Service panel fuses blown or tripped breaker
2. Blown FU1 fuse 1 or FU2 fuse 2
3. Failed microprocessor controller (computer)
B. Drive motor not operating (does not start)…
* Microprocessor controller (computer) relay output indicator (either) forward
“FWD” or reverse “REV” is on
1. Blown drive motor contactor fuse (s)
2. Failed drive motor contactor
3. Failed drive motor
4. Failed soft start
* Microprocessor controller (computer) relay output indicator (neither) forward
“FWD” or reverse “REV” go on