| Air Conditioner cleaning [message #284583] |
Tue, 11 August 2015 13:45  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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What is the preferred method for cleaning the coils on the rooftop A/C units? I use a foamiong acid cleaner on the house unit outside, and wash with a hose... and it helps the efficiency noticeably. I'm not so sure about using the acid cleaner on the roof of the coach though. The chance of it getting down inside bothers me, as does having it run off the roof and down the sides. Do I got to remove the unit from the coach? Or, is there something non-corrosive which will get the thing clean? If I have to, I can lift it off with a snatch block over a limb and hang it on my engine hoist - but what a PIA.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: Air Conditioner cleaning [message #284624 is a reply to message #284583] |
Tue, 11 August 2015 21:25  |
cbryan
Messages: 451
Registered: May 2012
Location: Ennis, Texas
Karma: 3
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Senior Member |
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Johnny,
I hear you, but I have no really good solution. This is the guy who used a power washer to clean fins on a radiator. I won't do that again. Do wavy, wobbly, hand straightened fins dissipate more heat than straight ones? This is also the guy who decided to wash all the fins on a 7.5 ton church air conditioner condenser unit with crankcase heater. No one told him that crankcase heaters are on 100% of the time. Washing the fins behind the compressor, BANG! It was loud enough to pat yourself down to see if you had a leak. Expert told me that we didn't need the heater in our climes. I put it in, because someone in the wintertime would surely decide it was too warm in one of the rooms and turn it on.
Having said all that, maybe a solution of TSP just left to sit on the fins for a while and gingerly washing them down afterwards then using compressed air to blow the stuff out might do the job. Formula 409? What about the interior fins, or have you been careful with the filters? All that's conjecture, but I wanted to keep the conversation on the top shelf.
Carey
Carey from Ennis, Texas
78 Royale, 500 Cadillac, Rance Baxter EFI.
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| Re: Air Conditioner cleaning [message #284631 is a reply to message #284583] |
Wed, 12 August 2015 00:14 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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Don't use he acid coil cleaner if you value your paint. You could use an evaporator coil cleaner instead. I would just use a soapy solution and hose it off with a garden hose. Even this will likely wash away your wax job. I usually just use a garden hose if I think mine needs cleaning. Under normal conditions this works just fine. It just doesn't make the coil shiny aluminum .
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: Air Conditioner cleaning [message #284646 is a reply to message #284583] |
Wed, 12 August 2015 07:41 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Well, at some point the roof will need painting. I may just hold off tll then, I'll hafta take the thing off at that point.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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