Service Manual -
VFH-B 30/36/42 Series
33
Malfunction display: E1 Compressor High Pressure Protection
Mainly
check
the
inlet
an
outlet
of
main
pipe
connecting
with
each
indoor
unit
and
capillary
of
indoor
and
outdoor
units.
Replace
the
parts
like filter,
capillary
and
so
on.
Check if indoor unit fan and outdoor unit fan
run
s
Check if swing louver of indoor unit is
completely open
High pressure protection
Y
N
Check if the pressure is really high pressure with the
measurement of a manometer
Replace the outdoor
unit mainboard
Replace pressure switch
Check if operation mode of indoor unit is
properly set
N
N
Y
Y
Y
Y
Check if gas valve and liquid valve are
completely open
Refer to Instruction
Manual of indoor unit
Check if the panel of outdoor unit is
firmly closed?
N
N
Completely open the
valve
Close the panel
Check if the air return and supply from heat
exchanger of indoor unit and outdoor unit is
smooth
Remove the barrier
Measure the fan motor and
signal input
Measure swing motor and
signal input
N
N
N
System pipeline is blocked
Y
Y
Y
Check if there is filth blockage to indoor/
outdoor filter or heat exchange fin
N
Y
Y
N
Check if pressure switch
is abnormal
Refer to Care and Maintenance
Содержание A-VFH30QB-1
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