Airstream PNEG-343 - Manual (Page 45)

45
Problem
Display shows "BURNER 1, 2 OR 3 VAPOR HIGH
TEMPERATURE" message.*
Display shows "BURNER 1, 2 OR 3 WARNING FLAME
NOT DETECTED" message.*
Display shows "FAN 1, 2 OR 3 HOUSING HIGH
TEMPERATURE" message.*
Display shows "GRAIN DISCHARGE WARNING" message.
Display shows "LOWER ADJ. GRAIN HIGH
TEMPERATURE" message.
Display shows "LOWER FIXED GRAIN HIGH
TEMPERATURE" message.
Display shows "OUT OF GRAIN" message.
Display shows "OUT OF GRAIN-UNLOAD CLEANOUT.."
message.
Display shows "PLENUM 1, 2 OR 3 HIGH TEMPERATURE"
message.*
Display shows "METER ROLL DRIVE SYSTEM FAILURE"
message.
Display shows "RIGHT METERING ROLL FAILURE"
message.
Display shows "LEFT METERING ROLL FAILURE"
message.
Display shows "AUXILIARY SAFETY SHUTDOWN"
message.
Display shows "BURNER 1, 2 OR 3 SHUTDOWN LOSS OF
AIRFLOW" message.*
Possible Cause
The LP gas vapor temperature sensor located in the gas
train downstream from the vaporizor has opened, indicating
that the vaporizer is running too hot and must be read-
justed. (This control is a 200
°
F limit which automatically
resets when it cools).
The flame sensor has failed to detect a burner flame,
indicating that the burner has failed to light, there is a
problem with the flame sensing circuitry or the dryer is not
getting burner fuel.
The temperature high limit located on the fan/burner
housing has opened, indicating an over temperature
condition has occurred towards the rear of the fan/heater
housing. (This control is a 200
°
F limit control that must be
manually reset).
The cover on the grain discharge box has opened, indicat-
ing that grain is backing up into the discharge box.
An over temperature condition has occurred inside the left
side grain column. (This control is a 210
°
F limit which
automatically resets when it cools).
An over temperature condition has occurred inside the right
side grain column. (This control is a 210
° F limit which
automatically resets when it cools).
The dryer has run low on grain, and the out of grain timer
has timed out shutting the dryer down. The unload auger
will then clean out the dryer, if the unload switch is on
during continuous flow operation. Check the out of grain
timer setting, and if necessary adjust. Also, before restart-
ing, inspect load equipment for possible damage or
adjustment.
An over temperature condition has occurred inside the
dryer plenum. (This control is a 300
°
F limit which automati-
cally resets when it cools).
The metering roll drive system has failed to turn within two
minutes. A faulty D. C. motor, broken chain or jammed roll
is a possible cause of this message.
The right metering roll has stopped rotating, or the sensor
has been damaged.
The left metering roll has stopped rotating, or the sensor
has been damaged.
A shutdown has occurred due to a user installed safety
feature. This circuit is located between J5-8 and J1-20
terminals on the input/output board.
The air switch contacts have opened, indicating insufficient
airflow for burner to operate.
TROUBLE ANALYSIS PROCEDURE
* The number in the warning message designates the fan, burner or plenum where the problem is located. All areas are
numbered from the bottom up. For example, the bottom fan is number 1, and the top fan is number 3.