Maintenance; Errors And Troubleshooting - BARBERI P27.T Manual Para El Usuario

EN - Operating and commissioning manual

10. Maintenance

The controller is maintenance-free. You can occasionally clean it with a soft and dry cleaning cloth.
Attention!
No humidity may get inside the controller!
Never use solvent-containing cleaning materials!

11. Errors and troubleshooting

Please check the following points, if your fixed-value controller does not operate successfully:
1. Current supply:
Check, if the power plug is plugged in or check the power supply voltage, if none of the two LED´s flashes,
although a control deviation is visible.
2. Possible fault signals of the fixed-value controller:
The two LED´s on the front side of the controller can indicate different faults. The following fault signals can
occur:
2a. Sensors and sensor leads:
LED red
LED green
LED red
LED green
2b. Fault:
LED red
LED green
2c. Exceeding temperature limit:
LED red
LED green
The mixer is closed, when the temperature limit in heating operation (+ 55 °C) is exceeded. The controller
automatically starts to run in normal operation, when the fault is eliminated. Replace the controller, if the error
still exists after checking, troubleshooting and, if needed, repair of the controller by the electrical technician.
Danger to life due to electric shock!
Only trained, competent and authorised persons (electrical technician according to DIN VDE
1000-10 and BGV A3) are allowed to do mounting, electrical installation and commissioning,
maintenance and repair work on the controller!
Follow all local regulations of the responsible energy service providers!
Ensure that the power supply is switched off and that the controller cannot be switched on before
starting installation or repair work on electrical equipment.
Never work on current conducting parts!
Attention!
After an electrical power outage the controller continues to run automatically. All stored values and
adjustments are saved!
on
flashes
flashes
on
flashes
flashes
on
on
Sensor lead disconnected
Sensor lead hot-wired
Internal fault of the controller or mixer blocked
Exceeded temperature limit
19
!
DANGER
!