GB
TROUBLE
Luminous switch /
Display of the control
panel OFF.
The compressor
doesn't start.
The fan doesn't work.
Condensate drain
absent (no water nor
air).
Air flows continuously
through the
condensate drainage.
Water in the pipes
downstream the dryer.
The temperature on
the control panel
display is higher than
the nominal value.
The dryer does not let
compressed air flow
through.
POSSIBLE CAUSE AND REMEDY
1. Check if the line is electrically powered.
2. Check cabling.
3. Check the electronic control board; if the trouble persists, replace it.
1. Check cabling and control.
2. Activation of compressor's internal thermal protection; wait one hour and
check again. If the fault persists: stop dryer and call a refrigeration engineer.
3. Check the compressor's electrical components.
4. Short circuit in the compressor. Replace it.
1. Check the protection fuse (if present), and in case replace it.
2. Check cabling.
3. Check the electronic control board; if the trouble persists, replace it.
4. Short circuit in the fan. Replace it.
1. Check cabling.
2. Pre-filter of the drainage system dirty, clean it.
3. The coil of the drainage solenoid vale is burned out, replace it.
4. Drainage solenoid valve clogged/jammed, clean or replace it. (fig.2)
5. Check the electronic card, if the trouble persists, replace it.
6. The temperature on the display of the control panel is lower then the nominal
value, call a refrigeration engineer.
1. Drainage solenoid valve jammed, clean or replace it.
2. Verify the condensate drainage times.
3. Check the control. If the trouble persists, replace it.
1. The dryer is off; turn it on.
2. Close by-pass (if present).
3. Condensate drainage absent; see specific section.
4. The temperature on the control panel display is higher than the nominal value;
see specific section.
1. Check if the compressed air inlet/outlet is connected properly.
2. The compressor doesn't start; see specific section.
3. The fan doesn't turn; see specific section.
4. The flow rate and/or temperature of the air entering the dryer are higher than
the nominal values; restore the nominal conditions.
5. The ambient temperature is higher than the nominal values; restore the
nominal conditions.
6. The condenser is dirty; clean it.
7. Condensate drain absent (no water nor air); see specific section.
8. Check if the temperature control probe in the evaporator is positioned
improperly or faulty.
9. Gas leakage in the refrigerating circuit: stop dryer and call a refrigeration
engineer.
10. Check cabling.
1. Check if the compressed air inlet/outlet is connected properly.
2. The temperature on the control panel display is lower than the nominal value;
call a refrigeration engineer.
3. Check if the temperature control probe in the evaporator is positioned
improperly or faulty.
4. Check if the connecting tubing are clogged; eventually proceed accordingly.
5. Check if by-pass (if present) is installed properly.
6. Check electronic control board. If the trouble persists, replace it.
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