Guys! You all got DIY clean your aircon blower ?

sumako

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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) :cry:
Kao Color Bleach confirm can work? how many times you use Kao Color Bleach to wash the fin? got 10 times?
 

The_King

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the brush he use, i wonder got curve brush also can reach the back drain tray to brush also

KzWyw91.png
RA1kIrY.png
 

destiny38

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Does anyone know how to remove blower for this bigger Toshiba System 1 unit?
I have been successful with their smaller system 4 fan coils, but can't seem to wriggle the blower out for this bigger model.

RAV-GE1801AP-SG1
 

yuri2

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this guy use sponge to block the blower from spinning, sound like a better choice then using hand, stick etc...


He 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.
 

yuri2

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the brush he use, i wonder got curve brush also can reach the back drain tray to brush also

KzWyw91.png
RA1kIrY.png

I 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.
 

lizzykai

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hi, sometimes when i on the aircon got thinner/paint smell... anyone know why? isit got paint stucked in the aircon or sth
 

yuri2

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Kao Color Bleach confirm can work? how many times you use Kao Color Bleach to wash the fin? got 10 times?
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.
 

The_King

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He 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.
mean i need to get a vacuum to suck the blower and fin before pressure wash the AC


also the wet/dry vacuum need to be able to wet vacuum the sofa , vacuum ac drain tray, vacuum fcu fin and blower and also can wet vacuum the mattress
 

The_King

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I 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.
my skill level is noob as i pressure wash 4 times only

no plan for now to remove blower as i am too noob (i read about the alignment , if you remove blower need to oil it), at the most remove case (once per yr) to wash and other then that is pressure wash with casing on


my family when remove the old fcu is due for replacement liao, i will keep 1 fco to learn (not the same model but to increase my ac knowledge )
 
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The_King

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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.
i wonder if Alkaline Coil Cleaner is better choice?
 

yuri2

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i wonder if Alkaline Coil Cleaner is better choice?
No, alkaline coil cleaner is mostly sodium hydroxide. It eats aluminium. Google it.
Some time ago, I've seen compressor fins with pitted holes. Those are caused by sodium hydroxide.

I'm thinking a cheaper option may be laundry powder. It is safe enough for clothing, and obviously it does not attack metal.

When I was younger, my uncle teach me to use laundry powder to wash hands, esp the very dirty stuff you can't get rid of. Mechanics used these cheap powder to clean their hands.
 

The_King

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Very good price. Karcher always quite expensive.
I only can afford a PowerPac wet/dry vacuum, but seldom use, so it's not too bad.
Thanks, me suddenly see this offer, so hoot first and confirm need for ac
 

yuri2

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i wonder if Alkaline Coil Cleaner is better choice?
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.

71KouTXRZ7L._AC_SY355_.jpg
 
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Foetid

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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.

71KouTXRZ7L._AC_SY355_.jpg
why dont u vacuum either the inlet or outlet? Faster?

Not sure about color bleach, i have read articles on using vinegar.
 
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