Airstream TC5-2V4SA User Manual page 54

TC5-2V4SA
PROBLEM
Stage 3, 4, 5
or 6 is not
operating.
54
TC5-2V4SA rev.06
CAUSE
The Stage's fuse is
open.
The display board
interconnect cable is
not plugged into the
power supply board
properly.
The wiring is incorrect.
The fan motor or
heating unit is defec-
tive.
The controller is
defective.
SOLUTION
Replace the fuse.
Make sure the cable is firmly
plugged in with the tabs in place.
Correct the wiring. In particular,
make sure two different lines are
connected to each motor: line L1
modulated by the controller
should be combined with another
line (N for 115V or L2 for 230V) to
activate the motor or heating unit.
Also, make sure the Stage COM-
MON is supplied by line L1.
Verify if the motor or heating unit
is defective by connecting it to an
alternate power supply. Replace
the motor or heating unit If it still
is not operating.
Listen to see if there is a clicking
sound when the Stage's pilot light
turns on. If there is no clicking
sound, contact your distributor to
repair the controller.