Grain Systems PNEG-1820 - Manual (Page 22)

22 PNEG-1820 CE Compliant Top Dry Series 2000 Autoflow
9. Error Messages and Valve Proving System
Error Messages
Burner * Loss Flame
The flame sensor in burner number * has failed to detect flame. Possible causes:
Burner failed to light.
1. Check fuel supply and pressure.
2. Check spark.
3. Check all solenoid valves are opening.
Flame sensor needs adjusting.
1. It must be in the flame.
2. It can be bent gently if required.
Fan * Vapor High-Limit
The LP gas vapor temperature has exceeded 109°C causing the high-limit to open. This will reset when
cool. The vaporizer must be adjusted to move it further from the flame to prevent this re-occurring.
Fan * Housing High-Limit
The temperature in the fan/heater housing has exceeded 109°C. Housing high-limit must be
manually reset.
Plenum High-Limit
The dryer plenum has gone over temperature. The plenum high-limit resets automatically when cooled.
The low-fire gas pressure needs to be lowered or the cycle set point on the high-low thermostat needs to
be increased if the error is displayed frequently.
NOTE: Vapor, plenum and housing high-limit errors will cause the burner control to lock out. This can only
be reset by pressing the illuminated Reset button on the burner control.
Fan * Motor Overload
The thermal overload in the control box on fan number one has tripped, indicating an over current
condition. The overload must be reset manually.
Fan * Loss of Airflow
The burner control air switch is not sensing adequate airflow to allow the burner to light.
1. Check fan is operating at correct speed.
2. Check for damaged fan blades.
3. Check air inlet is not impeded.
4. Check pressure switch.
5. Adjust pressure switch.