
UGD014/0497
GasTrac Process Air Heater
T
ROUBLESHOOTING
6-13
Alarm
Phase VW Short
Fault
Power Test Fault
Possible cause
Excessive voltage was
detected between the V
and W controller output
phases.
An electrical fault was
detected during the initial
start-up sequence.
Solution
❒
Check for a shorted condi-
tion in the wiring to the
controller.
❒
Check motor wiring
❒
Check wiring to the con-
troller..
❒
Check wiring to the motor.
07
43
07
48
V
ARIABLE
S
PEED
C
ONTROLLER
A
LARMS
ESC
SEL
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:
Turn the power disconnect
OFF
then
ON
.
Press the GasTrac
RUN
button.
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.
!
Fault code