Samsung AM072FXVAFH series Service Manual page 94

AM072/096/120/192HXWA✳✳
3) Checking of oil circulating system
Oil separator capillary tube or filter of block
- If filter or capillary tube of oil separator lower column is blocked by alien substance etc.., can become cause of compressor break-
down because oil is not collected.
- Can doubt that is blocked if oil separator capillary tube temperature is low after refrigerant outlet temperature of compressor, in
driving, rises.
( Compressor 2 individual occasion oil separator capillary tubes each other cross.)
- Confirm that is blocked in stationary state through nitrogen pressurization availability.
Breakdown of Accum Oil Return Valve (ARV)
- Damage can become cause of compressor breakdown because oil is not collected if filter of valve front/piping etc.. is blocked
with ARV is closed.
- Power connector of ARV confirms that was linked right.
- Extract connector in vacuum mode or confirm whether when insert, action sound of valve happens.
When CCH is badness, can become cause of compressor breakdown by oil foaming.
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