54
9
If the attempts to reset the boiler are unsuccessful, please
contact the technical service.
Fault E020
This kind of fault has two potential causes:
1)
Water high limit thermostat intervention:
due to absence
or poor water in the circuit or absence of circulation; check
pressure value on the pressure gauge and if necessary
restore it (14 - 22 psi (1 and 1.5 bar)) and check the correct
working of the circulator.
2) Heat Exchanger Thermostat intervention:
due to presence
of excessive dirty/deposits inside the primary heat
exchanger. This condition could lead to frequent faults
E020. Once established that condition 1 is satisfied, it is
necessary to go on with heat exchanger cleaning - see “13.4
Maintenance of the combustion control system” page 66.
Press the “ENTER” button with the rules described on reset
function paragraph.
9
WARNING
- If the attempts to reset the boiler are
unsuccessful, please contact the technical service.
Fault E041
If the pressure drops below the safety pressure limit of 4.3 psi
the boiler displays the fault code “E041 - LOW SYSTEM PRESSURE-
PLEASE REFILL” for a transitional time of 30 sec during which it
is possible to open the external filling tap until the pressure is
between 14 - 22 psi (1 and 1.5 bar).
E041
LOW SYSTEM PRESSURE
PLEASE REFILL
LOW SYSTEM PRESSURE
PLEASE REFILL
If the pressure drops frequently, contact your installer or the
customer care centre.
For fault E060
The boiler is working normally, but does not provide any
stable domestic hot water temperature is supplied at a
temperature of around 120 °F (49°C). A service technician is
required.
For fault E091
The boiler has an auto-diagnostic system which, based on
the total number of hours in certain operating conditions,
indicates the need for periodic maintenance.
Once the maintenance operation has been completed, re-
set the total hour meter to zero (0) as indicated below:
- access the technical parameters as explained in the specific
section
- select EXHAUST SENSOR RESET with the “up” and “down”
buttons, confirming the selection
TECHNICAL
INSTALLER
CALIBRATION
RANGE RATED
COMBUSTION ANALYSIS
WEATHER COMPENSATION
EXHAUST PROBE RESET
RANGE RATED
CALIBRATION
WEATHER COMPENSATION
COMBUSTION ANALYSIS
EXHAUST PROBE RESET
TECHNICAL
INSTALLER
- select “ENTER” to confirm the rest of the flue gas probe meter
or else CANCEL to cancel the operation
THE PARAMETER
WILL BE CHANGED
CONFIRM
CANCEL
CONFIRM OR DELETE
SELECTION
CONFIRM OR DELETE SELECTION
CONFIRM
CANCEL
THE PARAMETER
WILL BE CHANGED
NOTE: the meter resetting procedure should be carried out after
each in-depth cleaning of the primary exchanger or if the latter
is replaced.
The total hours can be verified in the following way:
- select INFO on the initial screen of the front control and press
“ENTER”
18/05/2013
12:17
MENU
INFO
SET
87
°F
FRI
PLANT
HOT WATER TEMPERATURE
STATE
13.85 psi
MENU
STATE
SET
INFO
PLANT
HOT WATER TEMPERATURE
FRI
- with the “up” and “down” buttons select “EXHAUST SENSOR
RESET” to display the value of the flue gas sensor.
Summary of Contents for Family PRO 42 IS
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