High Pressure Protection Control - Samsung AVMKH020EA0 Service Manual
System air conditioner
dvm series
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Technical manual
- 282 pages
Manual de instrucciones - 16 pages
Owner's instructions manual - 16 pages
Manual de instrucciones - 16 pages
Owner's instructions manual - 16 pages
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8
Troubleshooting
8-2-73. High pressure protection control
Outdoor unit display
Indoor unit display
Judgment method
Causes
Is the service vale opened all?
Check the PWM valve coil
(The same condition with that
Cooling
Remove the pollutions and
obstacles of outdoor inlet
and discharge.
Check if the outdoor fan is
operated normally.
Is high/low pressure normal?
(Operation)
(Timer)
- It is detected when the value of high pressure sensor is over 28kg/cm
<Cooling operation>
- Outdoor unit fan motor error(lock, defect)/Fan motor capacitor defect or wire short
Outdoor heat exchanger pollution/SSR defect for fan control/Service valve lock
<Heating operation>
- Outdoor unit fan motor error(lock, defect)/Capacitor defect or wire short
PWM valve defect of digital compressor /Service valve lock
Error reset(KEY 3)
Yes
and connecter.
Yes
Test operation
error occurred)
Heating
Remove the pollutions and
obstacles of indoor inlet and
discharge.
Check if the indoor fan is
operated normally.
Yes
Check completion
(Fan)
(Filter)
(Removing frost)
No
Open the service valve.
No
Check the Coil attaching and the
connection of connecter.
S-net connection (Essential)
Check the quantity of refrigerant
No
Operate the indoor/outdoor EV
Check the EEV clogging
- 254 -
2
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