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Air-con problem. Need some cold air..
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<blockquote data-quote="zan" data-source="post: 561088" data-attributes="member: 9632"><p>Air-cond system comprises of 3 main items</p><p>1. Condenser,</p><p>2. Compressor</p><p>3. Evaporator (cooling coil)</p><p></p><p>and few supporting components to make it work efficiently like</p><p></p><p>4. Aircond Blower</p><p>5. Air-cond Condenser Fan</p><p>6. Receiver Drier @ Filter</p><p>7. Expansion Valve.</p><p></p><p>Many shop say u have to service aircond every year but many people say (especially wira drivers) no need. they will say since new until 5 years also never rosak one.</p><p></p><p>Well, this depends on the design itself. Some cars are designed with pollen filters at the cooling coil thus, protecting it from dust. But some cars have the blower sucking air from the front floor carpet and if the floor is not maintained clean, chances that the cooling coil got dirty is very high. once the dust stick to the fins of the cooling coil, it became ice whenever the temperature got so cold and therefore blown air cannot go through. It is in this condition that u wont feel like air coming out from dash air vents though already switched to full blast!</p><p></p><p>To solve this is easy, remove the cooling coil and clean it with special solvent. But to remove it u need to release gas (normally vacuumed and recharged). and before u refill the gas, it is advisable to replace the receiver drier and expansion valve as well as they are both wear and tear items.</p><p></p><p>In your case, I strongly believe the workshop did not replace the expansion valve thus gave way soon after. I do not have the explanation as to why air-cond system have this penyakit berjangkit syndrome (meaning this month u repair this, next month different item kondem..no air-cond again).</p><p></p><p>But my self kena olredi this penyakit berjangkit...end of last year til beginning of the year (duration of 4 months)....at first</p><p>1. changed the magnetic clutch at the compressor due to burnt</p><p>2. then condenser leak, replaced</p><p>3. then air-cond sometimes not cold; found gas overfilled and vacuumed before recharged again.</p><p>4. then compressor leaked, overhauled..just RM120.</p><p>5. lasted few weeks before one of the O ring at the suction pipe leak, replaced F.O.C.</p><p>6. then compressor condemned again..DAMN! workshop did not recommend overhaul, but instead use a rebuild one. until now olredi 3 months and still going on.</p><p></p><p>that is my sad story, but really cannot tahan without air-cond even night driving. suffer due to loss of use and spending that money when i can use for other things.</p></blockquote><p></p>
[QUOTE="zan, post: 561088, member: 9632"] Air-cond system comprises of 3 main items 1. Condenser, 2. Compressor 3. Evaporator (cooling coil) and few supporting components to make it work efficiently like 4. Aircond Blower 5. Air-cond Condenser Fan 6. Receiver Drier @ Filter 7. Expansion Valve. Many shop say u have to service aircond every year but many people say (especially wira drivers) no need. they will say since new until 5 years also never rosak one. Well, this depends on the design itself. Some cars are designed with pollen filters at the cooling coil thus, protecting it from dust. But some cars have the blower sucking air from the front floor carpet and if the floor is not maintained clean, chances that the cooling coil got dirty is very high. once the dust stick to the fins of the cooling coil, it became ice whenever the temperature got so cold and therefore blown air cannot go through. It is in this condition that u wont feel like air coming out from dash air vents though already switched to full blast! To solve this is easy, remove the cooling coil and clean it with special solvent. But to remove it u need to release gas (normally vacuumed and recharged). and before u refill the gas, it is advisable to replace the receiver drier and expansion valve as well as they are both wear and tear items. In your case, I strongly believe the workshop did not replace the expansion valve thus gave way soon after. I do not have the explanation as to why air-cond system have this penyakit berjangkit syndrome (meaning this month u repair this, next month different item kondem..no air-cond again). But my self kena olredi this penyakit berjangkit...end of last year til beginning of the year (duration of 4 months)....at first 1. changed the magnetic clutch at the compressor due to burnt 2. then condenser leak, replaced 3. then air-cond sometimes not cold; found gas overfilled and vacuumed before recharged again. 4. then compressor leaked, overhauled..just RM120. 5. lasted few weeks before one of the O ring at the suction pipe leak, replaced F.O.C. 6. then compressor condemned again..DAMN! workshop did not recommend overhaul, but instead use a rebuild one. until now olredi 3 months and still going on. that is my sad story, but really cannot tahan without air-cond even night driving. suffer due to loss of use and spending that money when i can use for other things. [/QUOTE]
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Air-con problem. Need some cold air..