Grain Systems PNEG-526 - Manual (Page 40)

TROUBLESHOOTING Tower Dryer Operations & Service
32
Problem What to do
Dryer shuts down, red light lights - Check for possible fire in dryer at location indicated in message.
and horn sounds, display shows: - Check for a plugged or slow moving grain column.
“OVERHEAT AT _________” - Check for a plugged grain turner.
“POSSIBLE FIRE” - Check to insure that the dryer is full of grain and is continually being kept full.
- Check for a defective high limit sensor.
OIU displays message: - Indicates that the metering system inverter drive has tripped.
“UNLOAD DRIVE FAULT” - Check for plugged metering drum or Accutrol metering system.
- Reset drive by turning off the main circuit breaker for 15 seconds, or by pressing the
“STOP” button on the inverter.
OIU displays message: - Indicates that any overload has occurred in the item indicated.
“CONTACT FAILED TO CLOSE” - Reset the overload of the starter indicated in the power panel and fix the
“DRY CONVEYOR”
overloaded conditions.
-or-
“WET CONVEYOR”
-or-
any auxiliary starter
OIU displays message: - Indicates that overload has occurred in the blower indicated.
“OVERLOAD TRIPPED” - Reset the overload of the starter of the blower indicated and fix the
“BLOWER __ STARTER” overload conditions.
- Blower overload can be caused by overly tightened blower belts or inadequately greased
blower bearings.
TROUBLESHOOTING – OIU (SCREEN) MESSAGES
Message What to do
LOST COMM. TO MICRO Cycle the power
OVERHEAT AT TOP LEFT POSSIBLE FIRE!!! Check overheat condition and Term. 101
OVERHEAT AT TOP RIGHT POSSIBLE FIRE!!! Check overheat condition and Term. 102
OVERHEAT AT MID. LEFT POSSIBLE FIRE!!! Check overheat condition and Term. 103
OVERHEAT AT MID. RIGHT POSSIBLE FIRE!!! Check overheat condition and Term. 104
OVERHEAT AT LOWER LEFT POSSIBLE FIRE!!! Check overheat condition and Term. 105
OVERHEAT AT LOWER RIGHT POSSIBLE FIRE!!! Check overheat condition and Term. 106
OVERHEAT AT INSIDE LEFT POSSIBLE FIRE!!! Check overheat condition and Term. 107
OVERHEAT AT INSIDE RIGHT POSSIBLE FIRE!!! Check overheat condition and Term. 108
OVERHEAT AT PLENUM POSSIBLE FIRE!!! Check overheat condition and Term. 109
OVERLOAD TRIPPED TRI-STARTER Check Term. 300
OVERLOAD TRIPPED BLOWER 1 STARTER Check Term. 301
OVERLOAD TRIPPED BLOWER 2 STARTER Check Term. 302
OVERLOAD TRIPPED BLOWER 3 STARTER Check Term. 303
OVERLOAD TRIPPED BLOWER 4 STARTER Check Term. 304
AUXILIARY STUCK CLOSED TRI-STARTER Check Term. 200
AUXILIARY STUCK CLOSED BLOWER 1 STARTER Check Term. 201
AUXILIARY STUCK CLOSED BLOWER 2 STARTER Check Term. 202
40