Conair GasTrac User Manual page 54

V S
ARIABLE
C
ONTROLLER
A
LARMS
Alarm
07
Phase U Fault
07
Phase V Fault
07
Phase W Fault
07
Phase UV Short
Fault
07
Phase UW Short
Fault
6-12
T
ROUBLESHOOTING
Fault code
PEED
ESC SEL
!
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.
Possible cause
The controller has detect-
38
ed a phase U-to-ground
fault between the con-
troller and combustion
blower motor.
The controller has detect-
39
ed a phase V-to-ground
fault between the con-
troller and combustion
blower motor.
The controller has detect-
40
ed a phase W-to-ground
fault between the con-
troller and combustion
blower motor.
Excessive voltage was
41
detected between the U
and V controller output
phases.
Excessive voltage was
42
detected between the U
and W controller output
phases.
GasTrac Process Air Heater
When a problem occurs, the variable speed
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:
1
Turn the power disconnect
2 Press the GasTrac
Solution
Check the wiring between
the control and motor for
damage or incorrect connec-
tions.
Make sure the motor ground
is wired correctly.
Check the wiring between
the control and motor for
damage or incorrect connec-
tions.
Make sure the motor ground
is wired correctly.
Check the wiring between
the control and motor for
damage or incorrect connec-
tions.
Make sure the motor ground
is wired correctly.
Check for a shorted condi-
tion in the wiring to the
controller.
Check motor wiring for a
shorted condition.
Check for a shorted condi-
tion in the wiring to the
controller.
Check motor wiring
then .
OFF ON
button.
RUN
UGD014/1097