Chapter 5 Maintenance; Maintenance - BIRD Moduload 8640 Series Operation Manual

Chapter 5
Troubleshooting
The table below contains troubleshooting information for problems which can occur during normal operation. This
manual cannot list all malfunctions that may occur, or their corrective actions. If a problem is not listed or is not
corrected by the listed actions, notify a qualified service center.
PROBLEM
Heat exchanger not
operating.
Coolant leaking.
Interlock opening
repeatedly.
Excessive reflected
power.

Maintenance

Disconnect the unit from all power sources before servicing.
The unit may be energized from multiple sources.
The potential for electric shock exists.
POSSIBLE CAUSE
No AC power.
Unit turned off.
Fuse burnout.
Loose connections.
Worn or cracked hose.
Insufficient coolant flow. Check coolant level. Add coolant if
Defective flow switch.
RF power too high.
Ambient temperature
too high.
Air intakes or exhaust
are blocked.
DC resistance of the
load has changed.
Disconnect the unit from all power sources before servicing.
The unit may be energized from multiple sources.
The potential for electric shock exists.
WARNING
CORRECTION
Connected the unit to AC mains.
Set the line switch to ON.
Replace fuse after correcting the
burnout cause. See
Fuse" on page
Tighten drain plug and all connections.
Replace defective hose.
necessary. See
page 12.
Check flow switch. See
Flow Switch (For Units Manufactured
BEFORE 3/1/2010)" on page
Lower RF power.
Lower ambient temperature.
Check that clearances are at least
1 foot on the sides and 3 feet on top.
Clean panels. See
11.
Check DC resistance. See
Assembly Resistance Test" on page
11.
WARNING
10
Maintenance
"Replacing the
14.
"Changing Coolant" on
"Replacing the
15.
"Cleaning" on page
"RF