BUCHI Nano Spray Dryer B-90 - Manual (Page 87)

8 Troubleshooting
87 B-90 Operation Manual, Version B
8 Troubleshooting
This chapter helps to resume operation after a problem has occurred with the instrument which does
not require special technical training. It lists possible occurrences, their probable cause and suggests
how to remedy the problem.
The troubleshooting table below lists possible malfunctions and errors of the instrument. The operator
is enabled to correct some of those problems or errors by him/herself. For this, appropriate corrective
measures are listed in the column “Remedy”.
Malfunctions or errors which are not listed in the table are to be corrected by a BUCHI trained tech-
nical engineer who has access to the official service manuals. In this case, please refer to your local
BUCHI customer service agent.
8.1 Error messages and their remedy
Table 8-1: Error messages and their remedy
Error number Error reading Possible cause Remedy
001 Temperature sensor
spray head not connected Defective sensor, sensor cable or
internal wiring Check if the spray head plug is
plugged in correctly. Switch off
the device and try again. If the
error still occurs replace the
spray head or contact the BUCHI
customer service.
003 Resonance not found
check the spray head No spray nut, spray nut not tight
enough, spray head defective Switch off the device and try
again, if the error still occurs
clean the spray cap, replace the
spray cap, replace the spray
head or contact the BUCHI
customer service.
005 Spray head temperature
exceeded Piezo defective, temperature
problem Switch off the device and try
again. If the error still occurs
replace the spray head or
contact the BUCHI customer
service.
007 Temperature sensor
outlet not connected Defective sensor, sensor cable or
internal wiring Switch off the device and
try again. Check if the outlet
temperature sensor is plugged
in correctly. If the problem
still occurs replace the outlet
temperature sensor or contact
the BUCHI customer service.
008 Temperature sensor
inlet not connected Defective sensor, sensor cable or
internal wiring Switch off the device and
try again. Check if the inlet
temperature sensor is plugged
in correctly. If the problem
still occurs replace the inlet
temperature sensor or contact
the BUCHI customer service.