Grain Systems PNEG-1459 - Manual (Page 48)

48 PNEG-1459 L Series Operators
Flame Loss x
The flame sensor has failed to detect a burner flame which had been established but was lost for some reason and there is a
problem with the flame sensing circuitry or the dryer is not getting burner fuel. The message will distinguish between which
burner caused the shutdown. The reference to the number one (1) is telling you that it is burner number 1 which is the bottom
most fan.
Grain Temp Short x
This error indicates there is a shorted condition with one of the grain temperature sensors located inside the left or right grain
columns. This could be a shorted sensor or the sensor wires could be shorted.
Grain x Overheat
An over temperature condition has occurred in one of the grain columns causing the control to shutdown the dryer. This control
is set at 210°F (99°C) and automatically resets itself when cool. This can be caused from a grain column plugged with trash or
your meter rolls may be adjusted to slow. Feel the grain columns to determine which one may be causing the problems. If all
the columns are hot to the touch then you will probably need to check your meter roll settings. If not, then examine the column
that feels hot, make sure you can see the grain moving down the column screens. For more information on service see Meter
Roll Servicing.
Housing x High Limit
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 set at 200°F (93°C) and must be manually reset. The message will
distinguish between which fan housing caused the shutdown. The reference to the number one (1) is telling you that it is fan
number 1 which is the bottom most fan.
Ignition Failure x
This condition happens during the initial ignition of the burner. If the burner fails to light, check to make sure that your gas has
been turned on and/or the maxon valve has been turned on. The reference to the number one (1) is telling you that it is burner
number 1 which is the bottom most fan.
Illegal Flame x
This message is displayed when the flame detection circuit of your heater is sensing flame when the burner is supposed to be off.
Example, if you shut down the dryer and the heater continues to burn due to a solenoid stuck in an open state, it will generate
this type of error.
Motor Overload x
One of the thermal overloads on either the fan, load, unload or auxiliary motors has opened, indicating an over current condi-
tion. The overloads must be manually reset. The message will distinguish between which fan overload caused the shutdown.
The reference to the number one (1) is telling you that it is fan number 1 which is the bottom most fan.
Vapor x High Limit
The LP gas vapor temperature sensor located in the gas pipe train downstream from the vaporizer, has opened indicating that the
vaporizer is running too hot and must be readjusted. This sensor is set at 200°F (93°C) and automatically resets itself when
cool. The message will distinguish between which burner caused the shutdown. The reference to the number one (1) is telling
you that it is burner number 1 which is the bottom most fan/heater unit, is where the malfunction is located. Try adjusting the
vaporizer coils farther away from the burners flame. You may also want to try switching the burner mode from Hi/Lo to On/Off,
especially on warmer days.
INPUT/OUTPUT GENERATED ERRORS
The following is a list of errors that are generated with the Input/Output board located in the upper control box.
Air System Failure
A shutdown has occurred due to a air system that was installed with an integral safety switch that was in the unit. The air system
safety connections are located in the upper control box on the terminal strip. This can occur if this safety looses 12VDC to
terminal J1-10 on the I/O board. This input is jumpered on the terminal strip when it leaves the factory and is usually installed in
the field by a qualified electrician.
SAFETY CIRCUIT SHUTDOWN MESSAGES