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MAESTRO PRO INVERTER
7.3.16 ERROR 16 -
Indoor
coil
temperature too low
Check the refrigerant
circuit and
coolant
charge
Indoor
coil
temperature
froast protection
<-2°C
(28ºF) f
or
5 min.
Indoor
coil
temperature
r
eset>
7°C
(45ºF)
Check filters
and
coil
. Are
they clean?
ERROR 16
Indoor
coil
temperature too
low
The
temperature
of the
Indoor
coil
is <-2°C
(28ºF)
?
YES
YES
Clean filters
and
coil
NO
Check sensor
(Ref. ERROR 15)
NO
7.3.14 ERROR 14 - Room temperature sensor failure
Check the Omh
values of the sensor
Replace card
ERROR 14
Room temperature sensor
failure
Is
the sensor
properly
connected?
Are
the values
correct with
respect to the
table?
YES
YES
Correctly connect
the sensor to the
board
NO
Replace sensor
NO
7.3.15 ERROR 15 -
Indoor
coil
temperature sensor failure
Check the Omh
values of the probe
Replace card
ERROR 15
indoor
coil
temperature
sensor failure
Is
the sensor
properly
connected?
Are
the values
correct with
respect to the
table?
YES
YES
Correctly connect
the sensor to the
board.
NO
Replace sensor
NO