OPERATING AND MAINTENANCE INSTRUCTIONS Small Compact ...

Operation MDE 40
5.4 Trouble-shooting
Always disconnect the mains plug of the small compact
dryer and the drying bin heater from the power supply
before carrying out any fault rectifications.
Secure EMERGENCY-OFF switch at the small compact dryer
against unauthorised reconnection.
Faults may only be rectified by authorised, trained and
properly instructed specialists.
At malfunction, the alarm display (3, Fig. 5-3) on the operating panel lights up.
The faults listed are examples only, and are not to be regarded as exhaustive.
Fault Cause Rectification
lluminated "ON-OFF" Small compact dryer is not plugged in
Plug in small compact dryer
switch (2, Fig. 5-3)
does not light up EMERGENCY-OFF switch not activated Activate EMERGENCY-OFF
switch
Illuminated switch (2, Fig. 5-3) is not switched on Switch on illuminated switch
Power supply failure
Check power supply
Lamp defective
Change lamp
Fuse 12 F1 (9, Fig. 7-1) defective
Change fuse 12 F1
Blower is not Fuse 11 F3 (8, Fig. 7-1) defective Change fuse 11 F3
operating Blower defective Change blower
Alarm display Air pressure monitor (11, Fig. 7-2) defective Change
(3, Fig. 5-3) lights up Blower is not operating Change fuse 11 F3
Hose loose or leaking
Check, change if necessary
Air flow too weak
Check hoses and connection
for leaks
Temperature limit switch for desiccant cartridge 1 Reset 6.3.1
has switched off
Temperature limit switch for desiccant cartridge 2 Reset 6.3.1
has switched off
Temperature limit switch defective
Change
Sensor or capillary tube of the temperature limit Change
switch defective
Wrong position of valve flap Adjust valve flap 6.3.6
Temperature at
drying bin does not
reach set temperature
Air flow too weak
Differential pressure monitor (5, Fig. 7-3)
defective
Check hoses and
connections for leaks
Check 6.3.5
change if necessary
Safety thermostat has tripped Reset 6.3.4
Heater defective
Measure resistance,
change if necessary
5.4