Buchi Nano B-90, Operation Manual

Page: 88 / 104

8 Troubleshooting
88
B-90 Operation Manual, Version B
Table 8-1: Error messages and their remedy (cont.)
011 Inlet temperature exceeded Heating control or heating relais
defective Switch off the device and try
again. If the error still occurs
replace the heater module or
contact the BUCHI customer
service.
014 Voltage HV-Module HV-module defect or internal
wiring interruption or quality fall-
off voltage because of a short
circuit Switch off the device and try
again. If the error still occurs
contact the BUCHI customer
service.
015 Current in HV-Module too high HV-module defect or internal
wiring interruption Switch off the device and try
again. If the error still occurs
contact the BUCHI customer
service.
016 Current in HV-Module too low HV-connector not plugged in or
defective wiring error Switch off the device and try
again. Check the HV-module,
connection. If the error still
occurs , contact the BUCHI
customer service.
020 Relative pressure sensor 1
not connected Sensor not connected or defec-
tive internal wiring Contact BUCHI customer service
021 Relative pressure sensor 2
not connected Sensor not connected or defec-
tive internal wiring Contact BUCHI customer service
023 Difference pressure sensor
not connected Sensor not connected or defec-
tive internal wiring Contact BUCHI customer service
BUCHI
024 Inside pressure low System not leakproof Test for leaks
025 Filter pressure drop low Filter not installed or defective
internal wiring Check if outlet filter is blocked.
Replace the filter.
026 Flow rate low No flow rate, system not leak-
proof Generate gas flow, test for leaks
027 Inside pressure high Gas pressure connection too
high Regulate gas pressure
028 Flow rate high Sensor is at stop position Reduce gas flow rate
029 Relative pressure sensor 1
defective Sensor or internal wiring defec-
tive Contact BUCHI customer service
030 Relative pressure sensor 2
defective Sensor or internal wiring defec-
tive Contact BUCHI customer service
032 Difference pressure sensor
defective Sensor or internal wiring defec-
tive Close gas flow rate and restart
the system, contact BUCHI
customer service
035 No glass isolation cylinder Position switch Install glass insolation cylinder
040 Valve 1 CO
2
not connected
Internal wiring defective or
missing Contact BUCHI customer service
041 Valve 2 O
2
not connected
Internal wiring defective or
missing Contact BUCHI customer service
042 O
2
sensor not connected Defective sensor, sensor cable or
internal wiring Contact BUCHI customer service