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is returned to the local dealer or 4TEK S.r.l., all connections should be closed so that they
are water-tight.
For RAIN1CT devices equipped with amalgam separator, it must be replaced with a new
one 18 months after installation: once the old separator has been disconnected from the
system, after closing the inlet and outlet unions with the appropriate caps supplied with the
separator, it must be sent to a company authorized to collect and dicharge the amalgam.
8 Trouble shooting chart
This trouble-shooting is carried out by qualified technicians only.
Problem
Unit does not work
Unusual noise
increased
Excessive
vibration
Unit is very hot
Suction is too low
Motor overload
Possible reasons
Mains supply is not connected
Incorrect electrical connection or
power source
Solid particle or debris is coming
into the suction motor
Damaged impeller
Motor and/or impeller are dirty
Wrong wiring
Low voltage
Suction inlet is clogged
Operating pressure or vacuum is
too high
Suction inlet is clogged
Leaking problem in the suction
plumbing
Low voltage
Remedy
Check mains power, fuses and
reset
circuit
necessary
Dismantle unit and clean the
impeller of the motor
Dismantle unit and clean the
impeller of the motor
Check wiring
Supply proper voltage
Clean primary filter
Install
a
relief
pressure or vacuum gauge
Clean primary filter
Check all suction tubes, hoses
and connections.
Replace if necessary
Check power source
Check wire size and wire
connections
breaker
if
valve
and
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