Resmed s9 power supply gets extremely hot?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
steve215
Posts: 9
Joined: Thu Aug 08, 2013 6:17 pm

Resmed s9 power supply gets extremely hot?

Post by steve215 » Sat Aug 10, 2013 5:03 pm

Hello!

Is it normal that my resmed s9 power supply gets extremely hot? If I leave my finger on it, it burns!

Steve

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Sir NoddinOff
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Joined: Mon May 14, 2012 5:30 pm
Location: California

Re: Resmed s9 power supply gets extremely hot?

Post by Sir NoddinOff » Sat Aug 10, 2013 5:40 pm

Check and see if you are using the heavy duty HEPA microbial filters (they appear very dense next to the standard filters). If so, they may be limiting the air flow into the machine and causing the power supply to overwork. Make sure your air filter is not over-loaded and gray in appearance. Also, check and see if the machine is operating with sunlight shining on its casing... this happened to me and will cause a big increase in heat production. Is the machine sitting on a towel or something soft like a carpet? This will restrict cooling circulation into the motor. I'm sure others will have more to add to this short list. If all these indications are negative, then you may have a bad power supply to deal with, so check your warranty. But first, eliminate the simple stuff before you send it out for maintenance.

_________________
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I like my ResMed AirFit F10 FFM - reasonably low leaks for my ASV therapy. I'm currently using a PR S1 AutoSV 960P Advanced. I also keep a ResMed S9 Adapt as backup. I use a heated Hibernite hose. Still rockin' with Win 7 by using GWX to stop Win 10.

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jdm2857
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Re: Resmed s9 power supply gets extremely hot?

Post by jdm2857 » Sat Aug 10, 2013 11:36 pm

Does it cool off when the machine is not running?

How about if it is plugged in but not connected to the machine?

Try it with the humidifier turned off or disconnected altogether.
jeff

steve215
Posts: 9
Joined: Thu Aug 08, 2013 6:17 pm

Re: Resmed s9 power supply gets extremely hot?

Post by steve215 » Mon Aug 12, 2013 3:42 pm

Are these the heavy duty filters?


My filters are brand new, just got my machine.

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Sir NoddinOff wrote:Check and see if you are using the heavy duty HEPA microbial filters (they appear very dense next to the standard filters). If so, they may be limiting the air flow into the machine and causing the power supply to overwork. Make sure your air filter is not over-loaded and gray in appearance. Also, check and see if the machine is operating with sunlight shining on its casing... this happened to me and will cause a big increase in heat production. Is the machine sitting on a towel or something soft like a carpet? This will restrict cooling circulation into the motor. I'm sure others will have more to add to this short list. If all these indications are negative, then you may have a bad power supply to deal with, so check your warranty. But first, eliminate the simple stuff before you send it out for maintenance.