..
Error
conditions
can be
divided
in 2
groups:lockout conditions
and
blocking conditions.
a) Lockout
conditions,
flame failure
lockout,
high limit lockout and APS error, can only be
cleared
by turning the status knob (P1) to Offi'Reset
position
and wait for 5
seconds
then back to
previous position.
If the lockout
condition continius
after the reset
,
check the gas inlet and supply valves. If the
problem
continues
call
qualified service.
b)
Blocking conditions,
CH NTC error (short circuit or open
circuit),
DHW NTC error (short
circuit
or open circuit), and low water
pressure,
will reset as soon as the cause of the
problem disappears.
For
example,
when CH sensor is out of
operating
range,
blocking condition
will be
generated
and keep
the
system
off until the sensor is within
operating
range
again.