Filter
Top Products
Troubleshooting: Semi-Annual Preventive Maintenance
NetworkAIR IR Operation, Maintenance, and Troubleshooting 69
hlj
Problem Possible Cause Corrective Action
Humidifier
inoperative
• Water supply is not on.
• Electrical connections are
loose.
• Humidifier fuse is open.
• Relative humidity is above
the setpoint.
• Turn on the supply.
• Tighten all electrical connections.
• Check for short circuits, and replace blown fuses.
• No action needed.
Reheat elements
inoperative
• Overheat switch is actuated.
• A fuse is open.
• The thermostat is set too low.
• The thermal fuse in the
heater is open.
• Reset and check for operation.
• Check for short circuit.
• Adjust thermostat to required temperature.
• Replace thermal fuse.
Water carry-over • Insufficient air quantity over
the cooling coil.
• Dirty coil.
• Excessive airflow.
• Blocked drain pan or trap.
• Check for correct airflow and clean filters.
• Clean the coil.
• Reduce airflow to specifications.
• Clean the drain pan and trap.
Module is receiving
power, but will not
operate
• Remote shutdown enabled. • Disable remote shutdown.