Desa BG SERIES Operating Instructions Manual page 29

ANOMALY
THE FAN DOES NOT STOP WITHIN
FOUR MINUTES OF BURNER STOP
THE FAN DOES NOT OPERATE
THE FAN OPERATES
INTERMITTENTLY
All Parts available from
THE FAN HAS SOME IDLE
OPERATION
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THE GENERATOR GETS UNUSUALLY
DIRTY
INTERNAL CONDENSATION OF
COMBUSTION PRODUCTS
DIFFICULTY IN REACHING THE
TEMPERATURE SET ON THE ROOM
THERMOSTAT
This product was designed and made with high qualità material and components which can be recycled and
reused.
When finding the symbol of a wheeled crossed bin on a product, be aware of the fact that the component is
covered by the European Directive 2002/96/EC.
Get informed about your local waste separation system as far as electric and electronic products are
concerned.
Respect your in force local rules and do not dispose old products with your household waste. A correct
product disposal helps preventing possible negative consequences on human and environmental health.
CAUSES
Room temperature too high
Double thermostat FAN-LIMIT to be
checked or faulty
Fan unit to be checked or faulty
Double thermostat FAN-LIMIT to be
checked or faulty
Double thermostat FAN-LIMIT to be
checked or faulty
Insufficient thermal power
Hot air backflow
Burner settings incorrect
Chimney blocked
Insufficient thermal power
Insufficient heat exchange due to
fouled heat exchanger
Burner not set correctly
Room Thermostat not installed
correctly
PRODUCT DISPOSAL
2
29
REMEDIES
Check the inlet air temperature
Check for any exposure to sunlight
Check the FAN settings
Check the white push-button in AUTOMATIC
position
Replace the double thermostat FAN-LIMIT
Check the efficiency of the fan motor
Check the efficiency of the fan motor
condenser (single phase versions only)
Check the transmission belts (three-phase
versions only)
Check for action of the fan motor thermal
cut-out (three-phase versions only)
Check the FAN settings
Replace the double thermostat FAN-LIMIT
Check the FAN settings
Replace the double thermostat FAN-LIMIT
Check the oil burner settings
Check the aperture of the air flow control
vanes, so that there is no backflow of hot air
to the inlets
Check the inlet air temperature
Check the oil burner settings and cleaning
Clean the flue duct and the chimney
Check the oil burner settings
Clean the heat exchanger
Check the oil burner settings
Check that the room thermostat bulb is not
in the generator hot air flow