83
17.0
TROUBLESHOOTING
To avoid electric shocks, disconnect electrical supply before performing troubleshooting. To avoid burns, allow the
unit to cool before performing troubleshooting.
Be aware that a fault code is an indication that the unit or the
system needs attention. When a fault occurs repeatedly remedial work should be undertaken by a suitably
qualified person.
The first step is to check if the unit is installed according to the instructions. If not, first make sure the installation
complies with the installation manual. Always check the fuses on the control board before replacing any major
components. A blown fuse can prevent the controller or other components from operating.
Most faults can also be caused by a bad wiring and/or connections, even if it is not specifically mentioned. With
every fault it is wise to check wiring and connections (at both ends) that connect to the safety device/component
that generates the fault.
17.1
LOCK-OUT CODES
If the boiler locks out, it signifies that a serious situation has occurred and that the boiler has shut down and will
not fire again until manually reset. Before manually resetting the appliance corrective action may need to be taken
to prevent further occurrences of the lock-out situation. When the boiler is in lockout the backlight of the display
flashes on and off.
When a lock-out occurs, the display will show a description of the fault in the top line of the display; the bottom line
of the display will show the status of the pump when the fault occurred and the time that has elapsed since the
fault occurred.
Display message
F
l
o w
s e n
s o
r
e r
r
o
r
F0
p u m p
o n
9 9 9
,
5
h
r
s
Reason:
Flow sensor is not detected.
Cause:
Corrective Action:
Cause:
Corrective Action:
Replace flow sensor.
Display message
F
l
o w
h
i
g h
T
e m p
F1
p u m p
o n
9 9 9
,
5
h
r
s
Reason:
Flow temperature exceeds limitation (lock-out) value.
Cause:
The water flow through the heat exchanger is restricted.
Corrective Action:
Check the operation of the pump.
Check that all valves that might restrict the water flow through the boiler are open.
Check for an external system pump that influences flow through the boiler.
Check if the system resistance exceeds the spare capacity of the boiler pump.
Faulty wiring or connection in the flow sensor circuit.
Check for loose or damaged wiring and or connections in the flow sensor circuit and repair as necessary.
Defective temperature sensor causing a fault signal.
Содержание CP-M Series
Страница 5: ...5 2 0 PRINCIPAL PARTS FIGURE 2 1 REMOVABLE COMPONENTS CP M 60...
Страница 6: ...6 FIGURE 2 2 REMOVABLE COMPONENTS CP M 60 CONTINUED...
Страница 8: ...8 FIGURE 2 3 REMOVABLE COMPONENTS CP M 80 CP M 100...
Страница 9: ...9 FIGURE 2 4 REMOVABLE COMPONENTS CP M 80 CP M 100 CONTINUED...
Страница 11: ...11 FIGURE 2 5 REMOVABLE COMPONENTS CP M 120...
Страница 12: ...12 FIGURE 2 6 REMOVABLE COMPONENTS CP M 120 CONTINUED...
Страница 14: ...14 FIGURE 2 7 REMOVABLE COMPONENTS CP M 150 CP M 180...
Страница 15: ...15 FIGURE 2 8 REMOVABLE COMPONENTS CP M 150 CP M 180 CONTINUED...
Страница 94: ...94...
