Community Forums

Yoda2405 · 10-24-2010, 08:30 PM

Originally posted in Winnebago Forum, but received no posts, repeating here.

My Intellitec Power monitor suddenly started indicating 50A service while I am on 30A service. Everything appears to be working, but obviously the load manager is not going to function if it believes I have 50A service. It was indicating as expected on this same service until a few hours ago. I have unplugged from the service, no change. I checked all breakers, reset MAIN and Water Heater as I read it has some impact on the EMS. No change. I connected with a 20A adapter to standard plug and it too indicates 50A service.

I have a hard wired 50A SurgeGuard in line with the incoming power, before the transfer switch.

On the road and not sure what is going on. Any suggestions?

RV Wizard · 10-25-2010, 02:47 AM

The way these controllers know you are plugged into 50 amp verses 30 or 20 is the fact that it will see 220 vac on the service. If in fact you do not have 220 vac coming into the coach verify that the EMS is properly grounded.

Yoda2405 · 10-25-2010, 07:26 AM

Strange thing the day after all this happened, I came back to the coach and the display was working as expected and has continued for the last 24 hours or so without any changes to anything on coach or power side. I don't know whether to pursue the issue, is a stuck relay a possibility? I really do not know precisely how the monitor works but understand the principle of it. Read through the manual and found there are two components. Wonder if the relays could hang or if that would not do it. The other possibility I thought was could the surge guard somehow couple the two legs together or the transfer switch do that? Trying to determine if the EMS was reporting what it saw or if it was an erroneous report?

RV Wizard · 10-26-2010, 03:08 AM

It is hard to say but I would still check all of your circuits for tight connections just as a preventative measure (they will loosen up from vibration).