0nePunchm@n
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but these washing still die die need remove the drainage pan right? if not the whole pipe clogged by all the dirt?but the fin still look clean and blue
but these washing still die die need remove the drainage pan right? if not the whole pipe clogged by all the dirt?but the fin still look clean and blue
me is noob, so i tend to find safer wayuse 1 time usage chopstick can liao
Kao Color Bleach confirm can work? how many times you use Kao Color Bleach to wash the fin? got 10 times?It's a good idea to insert a stick to stop the blower from spinning while cleaning, so it doesn't hurl the black stuff upwards towards the coils.
They stick under the coil, clogged up the drain of the rear coil, which is not usually visible.
I'd recommend the use of Kao Color Bleach, in liquid form. Put it in a sprayer and spray the coils. It gets rid of the black sticky dirt and also kills bacteria, so the white slimy goo will be gone. Kao Color Bleach is oxygen-bleach, not the regular chlorine-bleach, so it's not as destructive to metal. However, use glove to handle it.
For maintenance, the A/C has two problems : black and white
Black dirt (dry)
White slimy goo (wet)![]()
can use just spray pressure water into the drain pipebut these washing still die die need remove the drainage pan right? if not the whole pipe clogged by all the dirt?
this guy use sponge to block the blower from spinning, sound like a better choice then using hand, stick etc...
the brush he use, i wonder got curve brush also can reach the back drain tray to brush also
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Yes, I've used it many times. Especially on the compressor coil fins, the dirt there is disgusting.Kao Color Bleach confirm can work? how many times you use Kao Color Bleach to wash the fin? got 10 times?
mean i need to get a vacuum to suck the blower and fin before pressure wash the ACHe use pressured water to spray upwards on the blower. That's the problem. The dirt will fly upwards and eventually when too much, will clog the rear coil discharge drain, like in my case.
Then the condensed water will not be contained in the drain, normally channelled to the front discharge pan. It overflows and leaked out all over.
The safer way is to vacuum the loose dirt, draw most of them out first.
Then maybe use a damp cloth with detergent/oxygen-bleach to slowly wipe the blower, holding it steady against spinning. The blower doesn't need to be squeaky clean. But I think more important those dirt don't get flung upwards.
The air/water flow should be as per the aircon, from outside into the coils and then out the blower.
my skill level is noob as i pressure wash 4 times onlyI got a long handle brush bought from Ikea. Now I know where to use it.
However, I would caution against brushing it wildly to spread the dirt. A damp cloth with water will control this.
However the brush is not able to reach the rear drain. You need to remove the screws to the coils, pull it out carefully, then you can see it.
I'd rather not do this, bcuz it's difficult to fit the front plastic drain underneath the coil when you're putting it back. It needs to be aligned properly with the casing.
Have you checked the alignment before you remove it ? Probably not, like me
And then the rubber roller on the blower end may have dropped off and rolled along somewhere you have to hunt for it. It's not a pretty job.
I discourage this removal for beginners. You may not be able to fit it back properly.
i wonder if Alkaline Coil Cleaner is better choice?Yes, I've used it many times. Especially on the compressor coil fins, the dirt there is disgusting.
It sticks to the fin and you'd have difficulty getting them off, even with high pressure water spray.
Kao color bleach sprayed on first, give it a few minutes to work. That makes the dirt a lot easier to remove with water.
Clean a dirty fan blades with Kao color bleach and you'll see how easy the dirt wipes off.
hoot liao
No, alkaline coil cleaner is mostly sodium hydroxide. It eats aluminium. Google it.i wonder if Alkaline Coil Cleaner is better choice?
Very good price. Karcher always quite expensive.hoot liao
$105 plus delivery
Thanks, me suddenly see this offer, so hoot first and confirm need for acVery good price. Karcher always quite expensive.
I only can afford a PowerPac wet/dry vacuum, but seldom use, so it's not too bad.
My fcu still drips water from inside. I know it's not completely clean, still some black stuff at the end of the internal drain where I can't reach. But this time, I see some black stuff came out with the water.i wonder if Alkaline Coil Cleaner is better choice?
why dont u vacuum either the inlet or outlet? Faster?My fcu still drips water from inside. I know it's not completely clean, still some black stuff at the end of the internal drain where I can't reach. But this time, I see some black stuff came out with the water.
Now, I use Vanish oxi-action powder, dissolved it in water, used hand sprayer and sprayed thoroughly at the coils, front and rear. Vanish, like Kao Color Bleach, is a oxygen-based bleach with sodium percarbonate. It does not damage clothing and unlikely to damage metal, as it uses oxygen molecules to clean.
It seems cleaner, the fcu is much colder. Hopefully, it doesn't leak water again, after this thorough cleaning. I didn't want to remove the coil again so I just spray over it.
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