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Old 09-16-2011, 02:25 PM   #41
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Originally Posted by tafische View Post
Yes, the hum is normal. There is a contactor in there, which is basically just a big relay. It relies on a magnetic coil to energize the relay - thus the slight hum. I noticed it at first, but quickly got used to it and dont even think about it anymore.
I'm a persnickative old bi...broad and hearing a hum probably would bother me. I'm wondering if mounting the EMS unit on rubber mounts would reduce it.
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Old 09-16-2011, 03:06 PM   #42
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I'm a persnickative old bi...broad and hearing a hum probably would bother me. I'm wondering if mounting the EMS unit on rubber mounts would reduce it.
I dont think it would. The hum is caused by the magnetic relay internally to the unit. I guess you could put some foam insulation around the cabinet where it is located to reduce it - but really - it is not that noticeable and you quickly forget it is there as it becomes background noise. I have a fan inside my fridge and even with the fridge door closed, it covers up any hum from the EMS.
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Old 09-16-2011, 09:25 PM   #43
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I'm a persnickative old bi...broad and hearing a hum probably would bother me. I'm wondering if mounting the EMS unit on rubber mounts would reduce it.
Thankfully the EMS is at the opposite end of the trailer than the bedroom is, so the hum will not be a problem.

John
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