Conair GasTrac User Manual page 53

When a problem occurs, the variable speed
Fault code
controller displays the parameter 07 and a
two-digit fault code. You must correct the
problem before restarting the GasTrac. To
restart after an alarm:
ESC SEL
1
2
!
WARNING: The GasTrac should be tested and
repaired only by qualified technicians equipped with the
correct tools and trained in the maintenance and repair
of electrical systems and industrial gas appliances.
Alarm
07 07
Motor Overload
07 08
Over Temperature
07 12
Over current
07 32
EEPROM Fault
UGD014/1097
Turn the power disconnect
Press the GasTrac
RUN
Possible cause
The internal electronic
overload tripped.
Excessive heat was
detected in the variable
speed control.
Excessively high current
was detected in the hard-
ware trip circuit.
The controller EEPROM
has invalid data.
GasTrac Process Air Heater
V
C
A
then .
OFF ON
button.
Solution
Check for physical or
mechanical blockage of the
combustion blower fan.
Check for a faulty combus-
tion blower motor.
Clean the air filters on both
sides of the GasTrac electri-
cal enclosure. Verify that the
cooling fan in the electrical
enclosure is operating cor-
rectly.
Check for dirty or blocked
heat sink passages or a
faulty fan inside the variable
speed controller.
Check for a short circuit at
the variable speed control
output.
Check for physical or
mechanical blockage of the
combustion blower fan.
Reset EEPROM. See Resetting
Factory Defaults in the Allen
Bradley variable speed con-
troller manual.
T
ROUBLESHOOTING
S
ARIABLE PEED
ONTROLLER
LARMS
6-11