MA-RSD making loud hum/buzz noise

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Oceanairre
Posts: 2
Joined: Fri Oct 21, 2022 4:31 pm

MA-RSD making loud hum/buzz noise

Post by Oceanairre »

My small (1100 sqft) condo has an EWC MA-RSD installed which makes a constant loud hum/buzzing noise. Is there an adjustment that can be made? Is this indicative of a forthcoming failure? Thanks in advance!
Steven W.
Posts: 104
Joined: Tue Jun 25, 2019 9:13 am

Re: MA-RSD making loud hum/buzz noise

Post by Steven W. »

Your motor is failing you will need to replace it. The part number you need is a MA-RSD.

Here is where you can order that part from.

www.ewcestore.com
www.supplyhouse.com
Steven R. Weisneck
Technical Engineer
Tel: (732) 446-3110 Ext. #461
www.ewccontrols.com
sweisneck@ewccontrols.com
Oceanairre
Posts: 2
Joined: Fri Oct 21, 2022 4:31 pm

Re: MA-RSD making loud hum/buzz noise

Post by Oceanairre »

Steve, will replacing just the MS-RSD solve the problem? Is the “motor” that you are referring to the blower motor?
Steven W.
Posts: 104
Joined: Tue Jun 25, 2019 9:13 am

Re: MA-RSD making loud hum/buzz noise

Post by Steven W. »

Yes if the MA-RSD is humming then that's where the problem is. All you need to do is replace the motor (MA-RSD).
Steven R. Weisneck
Technical Engineer
Tel: (732) 446-3110 Ext. #461
www.ewccontrols.com
sweisneck@ewccontrols.com
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