BaltGaz NEVALUX-8230 User Manual page 29

Code Failure
No draught
03
Boiler doesn't operate 1
Insufficient heat carrier
pressure in the heating
04
circuit. Air lock in the
heating system . The boiler
doesn't work 2
CH temperature sensor
05
failure. The boiler does not
operate**
Failure of DHW temperature
sensor Boiler works in
06
heating mode only**
Failure of modulator coil of gas
07 supply regulator
Boiler doesn't work**
1 After eliminating the failure it is necessary to press the button К6 (RESET) (see p. 3.1, page 8);
2 After failure elimination the boiler is launched automatically.
Reason of failure
The smoke exhauster or the air inlet duct is
contaminated
The air pressure switch's tubes' air-tightness
is damaged
Electric circuit of air pressure switch is damaged
The air pressure switch is damaged ( the
contacts of pressure switch should close at
pressure drop from 130 Pa)
Condensate in air pressure switch tubes
User and technical staff manual
Electric circuit of the fan is damaged
The fan is out of order
Low heat carrier pressure in the heating
circuit
Air lock in the heating system.
The heat carrier pressure sensor of the CHis
out of order
The electric circuit between the temperature
sensor and the electronic board is damaged
The pump or air outlet valve is out of order
The CH temperature sensor is out of order
The electric circuit between the temperature
sensor and the electronic board is damaged
DHW temperature sensor is out of order
The electric circuit between the DHW
temperature sensor and the electronic board is
damaged
Broken modulator coil of gas supply regulator
Electric circuit "modulator coil- electronic
board" is damaged
33
Troubleshooting
Figure out the reason of contamination
and remove it .
Replace the tubes
Check the electric circuit and contacts
Replace air pressure switch
Remove condensate out of air pressure
switch tubes
Check the electric circuit and contacts
Replace the fan
Bring the heat carrier pressure in the CH
to the recommended value (see p. 10.1,
page 22)
Open the air outlet valve (see p. 16.2.2.5 ,
page 39)
Replace the sensor
Check the electric circuit and contacts
Replace the pump or the air outlet valve
Replace the CH temperature sensor
Check the electric circuit and contacts
Replace the DHW temperature sensor
Check the electric circuit and contacts
Replace gas supply regulator (resistance of
modulator coil 80 Ohm)
Check the electric circuit and contacts