B
URNER
C
ONTROLLER
A
LARMS
UGD014/0497
GasTrac Process Air Heater
T
ROUBLESHOOTING
6-9
Alarm
OR
WARNING:
The GasTrac
should be tested
and repaired only
by qualified techni-
cians equipped
with the correct
tools and trained in
the maintenance
and repair of elec-
trical systems and
industrial gas
appliances.
Possible cause
Is the combustion blower
intake filter clogged?
Are the safety pressure
switches malfunctioning
or detecting incorrect
pressures?
Did the airflow interlock
fail closed?
Solution
Clean the filter. Replace the
filter if it is worn, torn or so
clogged with dirt that it can’t
be cleaned.
Reset the GasTrac, press
RUN
and check the LED lights on
the process air, combustion air,
low gas and high gas pressure
switches during the 90-second
purge cycle. If a light is not
green, check for leaks, block-
age or other problems that
could interfere with air or gas
flow detected by that switch.
Switch the burner controller
RUN/TEST
button to
TEST
.
Press the
RUN
button on the
GasTrac control. Measure the
voltage between terminal 7 and
G (ground). You should find
120V present if the interlock is
working.
When there is a problem related to the
burner or ignition, the burner controller
displays a fault code and illuminates an
alarm light. To restart the GasTrac after a
burner controller alarm:
Press the GasTrac
STOP
button.
Press the burner
RESET
button.
Press the GasTrac
RUN
button.
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LOCKOUT #23
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LOCKOUT #32