Super Free Match
Service Manual
MAINTENANCE
124
3.2 Malfunction display: High Pressure Protection
High pressure protection
Check the pressure
with a manometer: is it
really high?
Check work
mode of indoor unit:
is it properly set?
Check the
panel of outdoor unit: is it
firmly closed?
Check the fans
of indoor unit and outdoor
unit: is it run?
Check the
swing louver of indoor unit:
is it completely open?
Check the
indoor/outdoor filter and heat
exchange fin: is there filth
blockage?
Refrigerant pipe is blocked
Refer to Care and Maintenance
Measure swing motor and
signal input
Measure the fan motor and
signal input
Close the panel
Remove the barrier
Completely open the valve
Refer to Instruction Manual
of indoor unit
Check the
pressure switch :is it
normal?
Replace the outdoor
unit mainboard
Replace the pressure
switch
Yes
No
Yes
Check the
high pressure sensor: is
it normal?
Replace the high
pressure sensor
No
Mainly check the inlet and 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 the
flow of the air inlet/ outlet: is
it not blocked?
Check the stop
valves: are they open?
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
To Next Page
Loading...
Need help?
General
