6
Troubleshooting
6.1
Troubleshooting
Fault
Possible cause
Correction
Gas throughput decreases
Pre-filter contaminated
Clean or replace
Filter element contaminated
Heating failed
Heating cartridge or tempera‐
ture sensor defective
If necessary, replace seal or
defective component
Defective seal
Replace seal
Contaminated or corroded gas
paths
Defective or missing pre-filter
Replace
Leaky non-return valves
Contaminated instrument air
Replace
Check the purity of the instru‐
ment air
Leaky main valve
Valve seating contaminated or
damaged
Replace the valve cone
Replace the filter housing
Metal bellow leaky
Replace the metal bellow
TROUBLESHOOTING
6
8023849/14SF/V1-1/2019-07 | SICK
O P E R A T I N G I N S T R U C T I O N S | SFU
33
Subject to change without notice
