Operator`s manual

HI 110 / 200 / 300 Basic Troubleshooting
ghi_tx001468gb.fm 53
8 Basic Troubleshooting
Note: The following symptoms and remedies are some of the more common
issues that have arisen during the history of these machines. These do not repre-
sent all the possibilities. If you need advanced troubleshooting assistance, please
contact Wacker Neuson Product Support.
Symptom Possible Causes Remedy
The burner does not start • The remote thermostat or
thermostat plug is not
inserted correctly.
• Faulty cable or power
supply
• The over temperature limit
has tripped
• The burner is in lock-out
mode.
• Insert the remote
thermostat or thermostat
plug.
• Check cable and power
supply
• Press the reset button.
The burner starts, the flame
does not ignite, the unit locks
out
•No fuel
• Worn burner nozzle
• Faulty electrodes
• Cad cell detecting external
light.
• Cad cell defective
• Burner control defective
• Fill fuel tank
• Replace burner nozzle
• Replace electrodes
• Check the Cad cell
enclosure
The burner starts, flame
ignites, but the unit locks out
• Incorrect fuel pressure
• Worn burner nozzle
• Incorrect air lock setting
• Cad cell defective
• Burner control defective
• Increase fuel pressure
• Replace burner nozzle
• Re-adjust air lock setting
The burner ignites but the
performance is poor
• Worn burner nozzle
• Clogged fuel filter
• Air leaks in the fuel lines
• Insufficient oil pressure
• Replace burner nozzle
• Replace the fuel filter
• Inspect the lines for leaks;
replace if necessary
Black smoke from vent pipe • Insufficient combustion air
• Insufficient ventilation air
• Remove any obstructions
from the air inlet and outlet
areas.
The machine stops due to
pressure switch fault
• Overheat condition
• Faulty pressure switch
• Incorrect nozzle
• Wrong fuel pressure
• Contact Wacker Neuson
Product Support