Caple WI152, Technical Information

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20/23
7.5. Noise problem
1 Compressor noise
1>.
The working of motor and piston motion will cause noise when compressor working. So if
noise is steady and not exceeds 42 dB, it’s normal. If noise is not steady or very high, it’s
compressor fault and it should be maintained or replaced.
2>.
If compressor’s shock absorption rubber is hardening or damaged, or fixing screw of
compressor is too tight or loose, it will cause noise. The settlement is to change new shock
absorption rubber or adjust fixing screws.
（→6.2.3）
2 Fan noise
1>.
The working of motor and piston motion will cause noise when compressor working. So if
noise is steady and not exceeds 42 dB, it’s normal. If noise is not steady or very high, it’s
compressor fault and it should be maintained or replaced.
（→6.2.3）
2>.
If compressor’s shock absorption rubber is hardening or damaged, or fixing screw of
compressor is too tight or loose, it will cause noise. The settlement is to change new shock
absorption rubber or adjust fixing screws.
（→6.2.3）（→6.2.2）
7.6.
Refrigerant jet noise
Default: There is continuous noise like a water spray from the capillary.
Reason: The end of the capillary is in the wrong position, or there are rough edges on the end of
the capillary
Solution:
1>. Remove the evaporator
（→6.2.4）
, h
eat the soldered joint of the capillary
（Fig.3）
, then remove the
capillary from the evaporator and smooth the end with an eraser. (Caution: do not allow any
particles into capillary unit).
2>.
Replace the capillary into the evaporator, then solder it back into the correct position (not
exceeding 15mm in the evaporator) and pack the joint with anti vibration compound
3>.
Recharge with refrigerant.
（→7.3）
7.7.
Capillary vibration noise