INSTALLATION INSTRUCTIONS
67
6.11 Diagnostics
■ Error codes:
E01 Ionization Lock Out
E02 Safety Thermostat Tripped / Air Pressure Switch
Tripped
E03 Flue Gas Thermostat Tripped
H2O Low Water Pressure Alarm
E05 Heating Sensor Malfunction
E06 D.H.W Sensor Malfunction
E12 D.H.W Storage Cylinder Sensor Malfunction
E14 Air Pressure Switch Tripped
E16 Electric Fan Malfunction
E22 Parameter Programming Request
E35 Flame Detection Malfunction
E42 Fan Speed P.C.B. Malfunction
■ Function codes :
Code Function Description
07
Flue test function active
(Chimney-Sweeper)
Pressing the “service” button for 7 seconds
activates the Flue test function. Pressing the
water heater off button deactivates the
function.
The Flue test function operates the water
heater at the maximum heating pressure for
15 minutes without any modulation. The
function is useful for combustion testing.
08
Frost Protection
Central heating circuit
The function is activated when the heating
sensor senses a temperature of 5 °C. The
water heater operates at minimum gas
pressure with the 3-way diverter valve in the
winter position. The function is deactivated
when the temperature detected by the sensor
reaches 30°C.
13
Frost Protection
D.H.W. circuit – for storage water
heaters
The function is activated when the sensor
senses a temperature of 4°C. The water heater
operates at minimum gas pressure. The 3-way
diverter valve closes in the summer position
and heats the D.H.W. circuit. The function is
deactivated when the D.H.W. storage cylinder
sensor detects a temperature of 8°C.
28 Legionella Prevention Function
Function active for storage water heaters only.
It comes into operation every 7 days.
It brings the hot water temperature of the
storage cylinder up to 60°C whatever
temperature value is set for hot water.
31 Incompatible Remote Control
Function active when the remote control
connected is not compatible with the printed
circuit board .
120 60 Hz
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