Liftmaster CSW24U gate operator and moisture


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Old 09-05-23, 12:26 PM
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Liftmaster CSW24U gate operator and moisture

Hi, new user here. Happy to be onboard.

I have a question for anyone familiar with Liftmaster gate operators. I live in western WA state, USA. My gate operator was installed in about 2017 and I'm already on my third motor. At around $500 apiece, that's no small investment. I'm trying to figure out why I'm going through these motors.

Long/short, I bought the assembly from a CA dealer but they had no installers in my locale so I wired and installed it myself. Worked great for about 4 years on a 5 year warranty. Then one day it started malfunctioning. After going through all the fancy digital diagnostics, eventually I figured out that the controller was working fine, but the motor was toast. I hit the remote button, no action. But then I tap the motor casing with a hammer, and the button remote opens the gate.

Liftmaster has been good enough to cover all my motors so far. They require that you send it to them for inspection, before they decide whether it's covered. So far all mine have come back faulty, from corrosion.

I can buy a heater for the CAW24U for another $200. I'm considering a 12" goldenrod dehumidifier for the motor housing, which I think would be a cheaper and effective alternative.

Anyone have any suggestions? I'm considering a weather cover for the gate operator but there are some site limitations. Anyone else have this problem with their gate operator motors?

Thanks for any advice.
 
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Old 09-05-23, 12:53 PM
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Welcome to the forums.

Are you sure there isn't a seven year warranty on that unit ?
There is now.

What did Liftmaster recommend ?
Technically their heater based on recommended temperature setting wouldn't address the moisture issue.
I don't work on a lot of openers but have never come across a moisture issue.

Is that an open frame motor ?
It looks fairly well sealed in the pictures.
 
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Old 10-14-23, 12:53 PM
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Thanks for responding pjmax. Sorry I didn't reply sooner. I didn't get a notification... No matter. As I sit here, I'm actually not sure about the warranty period. But whatever it was, it's expired now.

So I went ahead and hung a 12" goldenrod dehumidifier in the CSW24U, right below the motor. Plugged it in to a 110V outlet nearby. Supposedly these rod dehumidifiers use about 1 watt per inch. So as I understand it, the 12" unit will draw about the same wattage as an LED light bulb.

These rod dehumidifiers are usually used indoors, to drive out humidity from gun safes and etc. I had some visible moisture on the CSW24U motherboard before installing the dehumidifier. Today, after a few days of rain, it's still dry.

The unit is well sealed at the top, but not at the bottom. Mine sits on a concrete pad. When the concrete gets wet, moisture creeps under the cover. Then condensation and etc.

So far I recommend this approach. I'd appreciate your thoughts. Thanks again.
 
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Old 10-14-23, 12:58 PM
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Sorry, Liftmaster didn't really recommend anything. However I was speaking primarily with the people who deal with warranty issues.

They said their integrated heater units are intended for use in cold climates. Cold really isn't the problem here. It's moisture. So I didn't really get clear direction from them.
 
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Old 10-14-23, 02:42 PM
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So you basically installed a 12 watt heater.
That should be plenty to keep the condensation in check.
I would think that would take care of your problem with no side effects.
 
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Old 10-14-23, 03:15 PM
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I have a Liftmaster Model CSW24UL swing gate operator and have only replaced one motor and one control board in the past dozen years and the motor burned out because the gate was hung up due to it being hit with a mower by the landscaper and the entire gate opener was recently replaced. There's been no sign of moisture or humidity being a problem.

I really can't imagine moisture or humidity being a problem anywhere. They're made to be used outside. The heater is only recommended for lower than -4 temperature.





 

Last edited by Kooter; 10-14-23 at 05:03 PM.
 

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