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BIEMMEDUE 169010 Manual De Uso Y Mantenimiento página 38

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10.32 UNDETECTABLE FAILURE
When the cause of the failure cannot be detected by the system, the
following symbols appear on the screen:
This condition occurs when, for a compressor running time of more
than 30 minutes, the temperatures of the condenser and evaporator
are almost equal. In this case, there is no longer enough refrigerant
gas inside the refrigerant circuit and thus the dehumidification cycle
FAULT
• The unit does not start or
remains in stand-by mode
(check
DIAGNOSTICS
screen)
L-L 309.00-BM
CAUSE
• No power supply
• Temperature and humidity control inadequate
• Room temperature and relative humidity values
too low
• Drip pan incorrectly positioned
• Drip pan full
• Insufficient air flow
• Fan motor failure
• Irregular refrigeration circuit operation
EN
is no longer effective. However, only the lack of function can be
detected and not the cause.
Warning
All repairs and maintenance on the refrigerant circuit or
parts thereof must only be performed by professionally
qualified, duly licensed personnel in compliance with
Regulation 517/2014/EU and Italian Presidential Decree
No. 146/2018.
If the unit is still not working properly after the above checks and
remedies, contact your nearest dealer or authorized Service Centre.
• Check the mains
• Adjust the internal and/or external hygro-thermostat to a
value
• lower than room relative humidity
• higher than room temperature
• Check that the temperature is between 4°C and 40°C and
the relative humidity between 20% and 99%.
• Carefully remove the drip pan and reinsert it
• Empty the drip pan
• Check that there is nothing blocking air intake and exhaust
vents.
• Check that there are no deposits or incrustations on the
filter or on the condenser or evaporator finned coils
• Contact a technical service centre
• Contact a technical service centre
REMEDY
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