Daewoo BM090 - Page 90

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Troubleshooting & Remedy
1. Check sheet for trouble & remedy
Refrigerant Condenser Evaporator Compressor Expansion Refrigerant circulation
Others
CAUSES
system system system system
valve system Others
APPEARANCE
Press
system
Comp
system
Others
Strange high of high-press
Strange low of high-press
Strange high of low-press
Strange low of low-press
No maintain the vaccum
No pumping down
serious noise
Bubbles in sight
glass very much
Refrigerant circula-
tion is stopped
No flow of cooling air
Poor cooling air flow
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Badness of cooling air duct Lose belt for cooler High-pressure side is closed Low-pressure side is closed Half opened of discharge control V/A Closed receiver control V/A Closed dryer strainer Dusts & water are mixed So closed So opened Bad joint part of temp sensor box Multifuction Too little oil Too muchoil Compress the liquid Damage of V/A plated Damaged or removed bearing Breakage of head packing Leakage of suction V/A Leakage of discharge V/A No rotating fan Dirty air filter Be frosted Closed all fin The tempofcoolingwindissolow No rotating fan Closed all fin The temp of coolingwindissohigh Water containded Air mixed No refrigerant Full refrigerant Over-charged refrigerant
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