Ingat lang pag palinis ng cooling coils or evaporators. Usually yung dumi minsan ang tumutulong para masarahan yung butas kung meron man. After exterior cleaning your evaporator, it is subjected to leak test by filling it up with air then submerged under water. Pag may bubbles sa tubes, better prepare to buy a new unit. It is not advisable to have it repaired by resoldering any hole, sisingaw at sisingaw rin ang refrigirants.

If it can still cool your car during midday, live with it a little longer. If it ain't broke, don't fix it. Yan ang lagi namin sinasabi ni OTEP when dealing with evaporators.