7 Problem solving
Condensate drain and air inlet and outlet valves
FX 13 up to FX 16
Reference Name
1 Inlet and outlet valves
2 Condensate drain
3 Dryer on/ off switch
4 Isolating switch
Attention
Use only authorised parts. Any damage or malfunction caused by the use of
unauthorised parts is not covered by Warranty or Product Liability.
Apply all relevant safety precautions.
Before carrying out any maintenance or repair work on the dryer:
Close air inlet and outlet valves (1) of the dryer.
Move dryer on/off switch (3) to position 0 to switch off the voltage. See section Stopping.
Open the isolating switch (4) to prevent an accidental start.
The air inlet and outlet valves (1) can be locked during maintenance or repair
work as follows:
• Close the valve.
• Using a wrench, remove the screw fixing the handle.
• Lift the handle and turn it until the slot of the handle fits over the blocking edge on
the valve body.
• Fit the screw.
Faults and remedies
Condition Fault Remedy
1 Pressure dewpoint too high Air inlet temperature too high Check and correct; if necessary,
install a pre-cooler
Instruction book
28 2920 7112 50