ICI - Innovative Creations, Inc. AX - Manual (Page 17)

TROUBLESHOOTING
15
7 TROUBLESHOOTING
FAULT PROBABLE CAUSE SUGGESTED REMEDY
Maximum pressure exceeded, as set on
the valve. Must be equal to the boiler
design pressure. Adjust the safety pressure switches
and / or limit switches. Safety valve/s opening
Loss of the adjustment of the safety valve Check and then adjust the valve using
a reference gauge
Dirt on the valve seat Clean the seat by opening the valve
manually a few times Small leaks from the safety
valve/s
Marks on the valve seat Dismantle the valve and regrind the
valve seat with very fine abrasive.
Check the motor current
Pump overload relay has acted
Check the relay setting
Pump stopped
Pump shaft seized Maintenance to the pump
Pressure limit switch set too high Adjust the pressure limit switch
Pressure limit switch faulty Replace the pressure limit switch
Pressure safety switch operates
Pressure switch pipe coil blocked Clean or replace the pipe coil
Water level detection interrupted Steel probe encrusted
Connection cable interrupted
Safety level relay faulty Temporary replacement of the safety
electronic relay with one of the two
relays in the panel.
If the problem disappears, replace the
faulty relay.
Safety level 1 or 2 operates
No water feed See faults "feed water"
Pump seized See faults "Pump stopped"
Pump suction filter blocked Clean the filter
Level control faulty Temporary replacement of the
electronic control relay with one of
those present in the panel.
If the problem disappears, replace the
faulty relay.
Level probes short circuited Dismantle the control probes for
inspection of the ceramic insulation
Suction head (difference in height
between supply tank and pump)
insufficient in relation to the water
temperature
Clean the pump suction filter
Pump cavitation
Reduce the head loss in the pipe
between collector tank and the pump
by increasing the pipe section
Feed water insufficient
Pump rotation direction Invert two phases (three-phase pump)
Erroneous electrical connection to the
panel Consult the wiring diagram
Safety level relays faulty See “Intervention safety level 1 or 2”
Check the adjustment of the pressure
switches
Burner always ON
Control and/or safety pressure switches
inactive
Check the pressure switch connections
to the control panel
Problems with the burner See the specific burner Manual
Burner fuses interrupted Replace the fuses
No consent to the burner from the control
pressure switch Replace the control pressure switch
No consent to the burner from the safety
level relay See “Intervention safety level 1 or 2”
Burner always OFF
Erroneous connection to the control panel Consult the wiring diagram