116 7713395 R2
Problem Check Cause Solution
Limits exceeded before plenum
temperature is reached
Check set point of high limit
switch
High limit switch set too low
High limit switch to be set 20-
30 degrees F above operating
temp of individual section.
NOTE: V42 is changed to be
Max temp on switch
Check location of thermocouple
in relation to the high limit bulb
Thermocouple and high limit
switch bulb are too far apart
Thermocouple twisted pair
should be within inches of high
limit bulb without touching
anything conductive
Honeywell Burner Control
Problem Check Cause Solution
Will not remote reset
Check to see if a manual reset
button on Honeywell works
If manual reset works, failure of
24VDC reset relay
Repair or replace 24VDC reset
relay or resolve wiring problem
If manual reset does NOT work,
read blink code and repair
Correct Honeywell fault
Check to make sure connector
is firmly plugged into top of
controller
Poor connection of reset signal
Tighten wires in connector and
ensure that connector is firmly
plugged in.
Honeywell communication error
If other Honeywells are visible
Incorrect address of the
Honeywell
Re-address Honeywell
Baud rate jumper installed in
the bottom of the Modbus
module
Remove the baud rate jumper
(NOTE: all new Modbus
modules come with jumper
installed)
Incorrect wiring on plug
attached to Honeywell
Correct wiring error
If other Honeywells are not
visible
Damaged Modbus
communication wires
Starting at the front of the PLC,
trace Modbus communication
cables to the lowest burner box
Loose connection at gray
communication tee connector
Tighten connection
If problem persists contact dealer
Moisture Controls
Problem Check Cause Solution
Moisture drift on outlet sensor
Blockage in discharge chute
Debris bridging over outlet
sensor blocking grain flow
Clean out discharge chute
around sensor
Can sensor be seen through
flow of grain
Insufficient grain flow over
sensor
Adjust gate in discharge chute
to restrict flow of grain
INLET MOISTURE SENSOR
ERROR
Make sure that the Inlet Sensor
is completely covered in grain
Incorrect timer settings on filling
equipment allowing sensor to
become uncovered
Adjust timer settings on the
filling equipment to ensure
sensor coverage.
6. TROUBLESHOOTING CONTINUOUS MIXED-FLOW GRAIN DRYER WITH COMMANDER CONTROL SYSTEM
To Next Page
Loading...