Kaye HTR-420, Руководство пользователя

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Chapter 8 Maintenance and Troubleshooting
Kaye HTR-420 User Manual 37
8.3 Troubleshooting
The following table details potential problems that you may encounter, which allows you to
determine the root cause and corrective action.
Problem Possible Cause Corrective Action
HTR-420 and touch
screen
unresponsive.
Fuse has blown.
Replace both fuses
even if only one is
defective.
Unknown.
Power off unit, wait a
few minutes, and then
power on.
Fingers too cold or slick to
allow recognition on touch
screen.
Dry and/or warm up
fingers.
Touch screen is
dim or dark.
Brightness setting too low.
Increase brightness
setting.
Sensor damage.
External reference sensor
improperly or not fully
connected.
Verify connection and
unplug then reconnect,
if necessary.
Sensor cable broken or has
a short circuit.
Contact Kaye for
service.
Fan not running.
The fan is defective or
blocked.
The temperature switch
may have been
triggered, switching off
power supply to the
heart cartridge. Contact
Kaye for service.
Fuse has blown.
Replace both fuses
even if only one is
defective.
End of temperature
is not achieved.
Solid state relay is defective,
or heating element has
short-circuited or aged?
Contact Kaye for
service.
External reference sensor
improperly or not fully
connected.
Verify connection and
unplug then reconnect,
if necessary.
No display.
Controller defective. Contact Kaye for
service.
Powered on but not
heating.
Not properly grounded. Ensure that the HTR-
420 is grounded.
Cannot
communicate with
Kaye AVS or Kaye
Validator 2000.
Remote control not enabled.
Enable remote control
on the HTR-420
Physical interface cable
connection between units
absent, improper, or
damaged.
Ensure cable is present
and properly secured. If
verified and problem
persists then replace
cable.