OM-222166 Page 56
Fault Condition
Additional Information
F62: Isolation Fault
Check for exposed conductor or for moisture on blanket
Using conductive coolant in cooler (043810 low conductivity coolant is recommend).
F63: Line Voltage Fault
Check line voltage
Check voltage values on diagnostic screen DIAG2 (see Section 10-7)
F64: Power Source Overtemp Fault
Verify power source vents and
wind tunnel are unobstructed
F65: Current Source Fault
Service required
F66: Under Frequency Fault
Check for loose or open connections in output cable
Decrease number of turns or add a second output
Decrease coil space
Service required
F67: Over Frequency Fault
Verify heating cable properly wrapped
Verify material being heated is magnetic
F68: Cable Connection Fault
Check for loose/open output connection
Verify all output cables are same type
Verify receptacle plug connected
Check cable 1 and cable 2 identification on diagnostic screen DIAG1 (see Section 10-7)
Rolling Inductor only: Verify TC5, TC6 connection.
F69: Coolant Overtemp Fault
Check coolant flow and level
Clean coolant filters and heat exchanger
Increase number of turns
Verify appropriate insulation thickness
F70: Internal Communication Fault
Service required
F71: Internal Thermistor Fault
Service required
F72: Coolant Thermistor Fault
Service required
F73: Decoupled/Open Coil
Check for loose/open output connection.
Tighten coil/blanket.
Increase number of turns
F74: Isolation Fault Self-Test Error
Service required
F75: Internal Power Supply Fault
Service required
F76: Current Source Control Fault
Service required
F77: Power Source Internal Comm Fault
Service required
F78: Output Current Sense Fault
Check for loose/open output connection or an extension cable connected with no coil attached
at the end.
Service required
F79: Accessory 1 overtemp fault
Check accessory TC connection
Wait for accessory to cool
F80: Accessory 2 overtemp fault
Check accessory TC connection
Wait for accessory to cool
