Conair HTC 120, Руководство пользователя

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6-8
l Tr o u b l e s h o o t i n g
Problem
Regeneration Temperature
RTD Integrity
– If the regen-
eration RTD is faulty, it shuts
down the dryer.
Process Blower Overload -
If the process blower exceeds
its full load amp rating or the
overload has tripped due to a
mechanical or electrical
problem the dryer will shut
down.
Possible cause
There is a loose connection in the
wiring leading to the RTD.
The connection of the RTD plug on the
control board is loose.
The regeneration RTD has failed.
The control board has failed.
The process blower current draw has
exceeded the full load amps rating of
the motor.
The process blower has mechanically
failed or is unable to rotate freely.
The process blower has failed electri-
cally.
Loss of phase of power to the motor
starter.
The overload is set incorrectly.
The overload is defective.
Solution
Check the RTD plug connection and
make necessary repairs.
Check the plug connection and tighten
if needed.
Replace the regeneration RTD.
Replace the control board.
Press alarm acknowledge and allow the
overload to reset then try to restart the
dryer. If the alarm condition occurs
again have a qualified electrician check
the current draw to the motor.
Disconnect and lock out main power.
Check the process blower for mechani-
cal failure and free rotation. Replace if
necessary. Allow the overload to reset
then try to restart the dryer.
Disconnect and lock out main power.
Check the process blower for electrical
shorts or open circuits. Replace if
necessary. Allow the overload to reset
then try to restart the dryer.
Check for a blown fuse in the dryer or
main power supply. Allow the overload
to reset then try to restart the dryer.
Disconnect and lock out main power.
Check the overload settings and
confirm that the settings match the
full load amps listed on the process
blower motor. Allow the overload to
reset then try to restart the dryer.
Replace the overload.
Shutdown Alarms
If an alarm occurs, a red dialog box is displayed on the dryer’s touch screen
control. The dryer will shut down automatically during a to prevent damage
to the equipment or personnel. The dialog box will indicate whether the
alarm is a shut down alarm or a passive alarm.