Progressive EMS-HW50C

[fivestarcamping]

Installed Progressive's EMS-HW50C in camper. Currently using 30 Amp adapter for power at home. Unit shows correct display for single leg operation. EMS Unit has low humming noise, is this normal? I don't recall reading anything on this when researching.

[Farmhawk]

It is normal to have a slight hum or buzzing sound.

[mamestra]

Yep it is normal, the readings are a great help when you are on 30 amps and have to balance what you are using.

[DQDick]

It's doing what it's supposed to. You'll love the useful info you get, particularly when your on 30amps.

[H. John Kohl]

quote:Originally posted by fivestarcamping

Installed Progressive's EMS-HW50C in camper. Currently using 30 Amp adapter for power at home. Unit shows correct display for single leg operation. EMS Unit has low humming noise, is this normal? I don't recall reading anything on this when researching.

Your EMS does not pass power immediately. When the timer says, "ok apply power" it sends a voltage to the relay (that clunk you might here). The relay closes and passes power. They humming you hear is probably the relay staying closed.
Good question. Hope this helps.

[fivestarcamping]

Thanks for everyone's reply. Do I get any "Kohl Points" for direct response to my question?