INSTALLATION INSTRUCTIONS
6.11 Diagnostics
■ Error codes:
E01 Ionization Lock Out
E02 Safety Thermostat Tripped / Air Pressure Switch Tripped
E03 Flue Gas Thermofuse Tripped
H2O Low Water Pressure Alarm
E05 Heating Sensor Malfunction
E06 D.H.W Sensor Malfunction
E16 Electric Fan Malfunction
E22 Parameter Programming Request
E35 Flame Detection Malfunction
E42 Fan Speed P.C.B. Malfunction
■ Function codes :
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 41 °F. 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
09
Frost Protection
D.H.W. circuit
The function is activated when the sensor
senses a temperature of 40°F. 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.
sensor detects a temperature of 46°F.
31 Incompatible Remote Control
Function active when the remote control
connected is not compatible with the printed