BUCHI KjelDigester K-449 - Manual (Page 55)

8 – 55 Operation Manual KjelDigester K-446/K-449
8 Troubleshooting
8 Troubleshooting
8.1 Customer service
Only authorized service personnel are allowed to perform repair work on the device which is
not described in this manual. Authorization requires a comprehensive technical training and
knowledge of possible dangers which might arise when working at the device. Such training
and knowledge can only be provided by BUCHI.
The customer service and support offers the following support:
∙Spare part delivery
∙Repairs
∙Technical advice
Addresses of official BUCHI customer service offices can be found on the BUCHI website.
www.buchi.com
8.2 Error messages on the display
The troubleshooting table lists possible malfunctions and errors of the device. The operator is
enabled to correct some of those problems or errors. For this, appropriate corrective measures
are listed in the column “Corrective measure”.
Malfunction Possible cause Corrective measure
ERR 1 POWER Power supply interrupted.
The heat is turned off auto-
matically. Restart. Delete the error
message from the display by
pressing [STOP].
ERR 2 TEMP The current heating block
temperature exceeds 500 °C
(constant beeping sound). Switch off the main switch.
Restart. Delete the error
message from the display by
pressing [STOP].
ERR 3 SHUT OFF MAINS Due to a blocked or defective
fan the internal temperature of
the device exceeds 60 °C. Switch off the device and
contact the BUCHI customer
service.
PT 1000 ERROR Temperature sensor short or
circuit interrupted. Switch off the device and
contact the BUCHI customer
service.