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An acma 2 tons split unit AC had suddenly stopped during operation found a short circuitedwiring was the reason but after fixing the cable and removing the damaged location the unit was put in operation but not started why

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6ya6ya
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Posted on Jan 02, 2017

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louislevel_2
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SOURCE: Formation of ice on evaporator element

hi! there,
eventually ice freezing evaporator occured two factor you have
dirty fin evaporator and undercharge system.
1. undercharge can easily detected using clamp
ammeter clamp on one line of evaporator while running
read the amper the compare this to yuor service
manual the rated current of the compressor.

2.if the reading current is below the rared current on
manual or there is tag on the body of unit specified
rated current.your unit need to recharge.

if has the same current no change at all freon is still
good, this only need cleaning of eveporator fin.

clean this by pressurise water to purge out all debris
particle on fin tube of evaporator.

cracking sound usally made by blwer or fan
misalignement or distorted bearing blower .



regards have anice day dont forget to rate me.

Posted on Apr 10, 2009

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