- 239 -
Troubleshooting
Is the resistance value
between the compressor
terminals normal?
Is high/low pressure normal?
Is the compressor operating?
Even though the compressor is operating
but if there is no response on the
temperature and pressure, it is the loading
failure. Replace the PWM valve.
If any one of the resistance value of compressor
terminals L1(R)-L2(S), L2(S)-L3(T), L3(T)-L1(R) is
not normal, it shall be regarded as OLP Trip. Wait
until the compressor is cooled to restart.
If the compressor is under normal operation,
check the causes of OLP trip(amount of
refrigerant, outdoor ventilation, etc).
Even though ON signal is going to
compressor but if it is not operated, it is the
OLP trip due to the overload. Wait until the
compressor is cooled to restart.
Error reset(KEY 3)
Test operation for every room
(KEY 4)
■
Precautions
■
1. The replacement of PWM valve due to the loading failure is the difficult work to abolish the refrigerant in the system and
recharging it, and there is little possibility to appear actually.
So, check the above check items carefully.
■
2. The restart after OLP trip is possible only when the inside temperature of compressor is down lower than 60˚C, and
therefore it takes about 2-3 hours.
■
3. If waiting at the state that the power is on during the temperature failing down.
CCH(Crank case heater) operates to delay the time to restart. Accordingly, separate the connecter to the CCH to block
the power and reconnect the connecter after the completion of final check.
No
No
Yes
Yes
Yes
No
DB98-17816A(1)_8 3/2/04 9:35 AM Page 239
Summary of Contents for DVM Series
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Page 280: ... 279 Exploded Views and Parts List 31 1 56 1 31 5 31 4 31 3 31 2 56 2 57 ...
Page 281: ... 280 Exploded Views and Parts List 9 F Type cont 31 1 56 1 31 5 31 4 31 3 31 2 56 2 57 ...
Page 285: ... 284 Exploded Views and Parts List 9 ...
Page 287: ... 286 Exploded Views and Parts List 9 31 1 31 4 31 2 31 5 31 6 31 3 57 1 57 2 58 G Type cont ...
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Page 292: ... 291 Exploded Views and Parts List 31 1 31 6 31 5 31 4 31 2 31 3 62 1 62 2 63 1 63 2 ...
Page 298: ... 297 Exploded Views and Parts List 31 1 31 6 31 5 31 4 31 2 61 1 61 2 62 1 65 2 31 3 ...
Page 358: ... 357 Memo ...
Page 361: ... 360 Wiring Diagram 10 10 1 2 4 way cassette type Cooling only AVMCC ...
Page 362: ... 361 Heat pump AVMCH ...
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Page 370: ... 369 Wiring Diagram 080 100 This Document can not be used without Samsung s authorization ...
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Page 389: ... 388 Memo ...