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Old 03-26-2009, 06:10 PM   #31
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Preventive maintenance


I would be very careful with detergents. If the fins are color coated you may wash the color off and be left with a unattractive bright shiny coil. Great idea though for those nasty Trane spine fin coils.

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Old 03-26-2009, 06:39 PM   #32
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Yuri some times ya gotta do a chem clean that is so strong it takes the fin paint with it.

"Sides, a shiny surface reflects heat better
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Old 03-26-2009, 07:06 PM   #33
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The newer Lennox don't look as good without the colored fins IMO. Had one DIYer take a pressure washer to his condensor. Poor shmuck didn't realize what a good job he was doing. Flattens ALL the fins and then he sells the joint and the next guy wonders why his unit trips the minimum sized/undersized breaker all the time.

Last edited by yuri; 03-26-2009 at 07:08 PM.
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Old 03-26-2009, 07:28 PM   #34
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Quote:
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The newer Lennox don't look as good without the colored fins IMO. Had one DIYer take a pressure washer to his condensor. Poor shmuck didn't realize what a good job he was doing. Flattens ALL the fins and then he sells the joint and the next guy wonders why his unit trips the minimum sized/undersized breaker all the time.
Had a customer do that.

He used a butter knife to re-open the space.


sure did move alot more ambient air after that
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Old 03-26-2009, 07:49 PM   #35
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At $85/hr buddy said he would rather sit there and do it himself. Rotten mess the washer made.
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Old 03-26-2009, 07:53 PM   #36
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At $85/hr buddy said he would rather sit there and do it himself. Rotten mess the washer made.
i hear ya.
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Old 03-27-2009, 07:12 AM   #37
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Had a customer do that.

Used a butter knife to re-open the space.


sure did move alot more ambient air after that

Ever hear of a FIN COMB?????????????????????
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Old 03-27-2009, 09:58 AM   #38
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Ever hear of a FIN COMB?????????????????????

Yeah, I have. But the customer didn't.
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Old 03-27-2009, 12:03 PM   #39
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I guess i assumed too much for other readers to understand that post
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Old 03-28-2009, 09:44 AM   #40
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I guess i assumed too much for other readers to understand that post
We use a commercial condenser cleaner that will in fact take the paint off or and anything else thats on the condenser, even the paint on the sides. You have to mix the clesner about 20 to 1. But for the home owner use something like 409 spray mix it about 1 part water to 1 part cleaner, turn off the power, spray the coils, let the cleaner soak for 10 minutes and rinse with medium spray from a garden hose, (NO POWER WASHER)! On units like Rheem, Trane, American Standard where the coils are proteched by sheet metal grills, either remove the grills or spray the cleaner at an angle up into the coils. Then force the rinse water at an angle from the top of the coil to the bottom. It may take two or three cleanings if you've never cleaned the coils before. You will see the black dirt and scum roll out of the coils.

I reccomend doing this at least twice a heating season and once in the late fall if you have a heatpump. It will prolong the life of your equipment, increase your heat/cooling capacity and reduce your energy costs!

If folks would keep there coils clean and there filters changed I'd be out of business! So go ahead and try to put me in the cheap seats!!

Regards Larry

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Old 03-28-2009, 10:00 AM   #41
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If folks would keep their coils clean and their filters changed I'd be out of business!
i think you'll be in business a good, long time.......

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Old 03-28-2009, 11:01 AM   #42
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Can you use Greased Lightning on the condenser coil? If so. should it be mixed with water?
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Old 03-28-2009, 11:34 AM   #43
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Never tried it.
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Old 03-28-2009, 12:46 PM   #44
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Never tried it.
Would you consider trying it? Would it be any different than the 409 spray mix?
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Old 03-28-2009, 02:53 PM   #45
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I'd say it would work straight from the bottle.. I have never seen it eat paint off anything. It's a mild cleaner

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