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PROBLEM
The stage 3
fans are not
running.
or...
The stage 5
fans are not
running.
or...
The heaters are
not turning on.
The mist is not
operating as
desired.
CAUSE
The wiring is
incorrect.
The stage's fuse is
open.
The display board
interconnect cable
is not properly
plugged into the
power supply board.
The fan motor or
heater is defective.
The controller is
defective.
The mist time on
and time off were
incorrectly adjusted.
There is a 1°F(0.6°C)
hysteresis on the
mist. See "Mist".
SOLUTION
Correct the wiring. Be sure
two different lines are connected
to each fan motor or heater: the
controller's output line L1 should
be combined with another line
(N for 115V or L2 for 230V) to
activate the fan motor or heater.
Also, be sure the stage's
COMMON is supplied by line L1.
Replace the fuse.
Be sure the cable is firmly
plugged in.
Check if the motor or heater is
defective by connecting it to an
alternate power supply. If it still
is not operating, replace the
motor or heater.
Listen to see if there is a
clicking sound when the stage
or heater-mist pilot light turns
on. If there is no clicking sound,
your controller needs repair.
The mist time on and time off
are in minutes. Adjust the mist
time on and time off correctly.
Adjust the mist differential
accordingly.
TC4-2N6F.rev.07
47
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