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06-20-2011, 04:56 AM
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#1
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Montana Master
Join Date: Sep 2004
Location: Leona
Posts: 6,382
M.O.C. #2059
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Another A/C question
Ok, I got on the roof, removed the cover. Things look fine, no clogged vanes, but will spray with water anyway. Is there any thing else I need to check while there?
Condensation collects in the bottom pan, but the drain holes are up hill because of the slant of the unit. This means it stays collected in the bottom/rear section of the pan until it evaporates. It gets deep enough to cover the bottom edge of the coil. Seems like this might cause a corrosion or other problem. Would I be wise to drill a small hole in the bottom/rear corner to facilitate better draining?
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06-20-2011, 06:26 AM
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#2
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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I've drill a couple extra holes in the pan on my last two fivers ... I've seen no negative issues arising from this.
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06-20-2011, 06:34 AM
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#3
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Montana Master
Join Date: Apr 2009
Location: Murrieta
Posts: 5,816
M.O.C. #9257
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I would sure do that. I would probably make the same size as the original. Next time I'm on the roof I should probably check on that.
I am curious that it would be safe to hose it down even though it's up on the roof where rain falls. But with the cover the rain won't get to mostly places like what happens when hosing it down. I use a compressor hose to blow out dirt and dust as best I can.
I guess this would be a question for an air/heat dude, like Ozz. What's recommended for cleaning an RV A/C unit? What should we worry about when cleaning it out. I only know enough to keep things maintained (cleaned) and that's about it. In doing this, I don't want to break anything.
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06-20-2011, 06:50 AM
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#4
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Montana Master
Join Date: Sep 2004
Location: Leona
Posts: 6,382
M.O.C. #2059
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If you spray the vanes with water. You don't wet down the electrical part or wiring, spray through the vanes. My nozzle allows me to control the force of the spray so as not to soak the rest of the unit. Minor spray is no worse than driving in the rain and having spray come through the louvers.
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06-20-2011, 12:28 PM
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#5
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Montana Master
Join Date: Jul 2006
Location: K.C.
Posts: 11,731
M.O.C. #5980
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Simple.
Ahh, that is simple Green, won't get the tree-huggers mad at you and does a great job.
With grease and heavy dirt and crud I use stuff that will take paint and your skin off.
Stiles my money is on a loose wire on the breaker.
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06-20-2011, 01:56 PM
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#6
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Montana Master
Join Date: Sep 2004
Location: Leona
Posts: 6,382
M.O.C. #2059
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Job complete. Fins cleaned. Unit was surprisingly clean. Wiped down all surfaces and cleaned the fan blades. Drilled holes in the pan at the lowest point.
Purchased and installed a new breaker. The wires at the breaker and the buss were all so tight that when I tried to loosen them to install the new breaker, I bent the driver blade and get a bigger driver to get them started. Checked all connections.
Thanks for all the advice and counsel. We will see how things go.
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