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Prosine inverter error #202

February 10, 2021, 12:38:36 pm

Just pulled into a campsite and hooked up to 50 amp. First the main transfer switch took a longer than normal time to start, actually had to turn power on and off.  The subpanel breakers for the inverter and microwave were both tripped, and the Prosine inverter with ACS control panel is giving me an error #202 (Relay Contact Fault: One of the relay contacts is stuck in the closed position)  and won't turn on so no way to charge the house batteries other than solar (not a problem, batteries are at 60%).  I have power to everything in the coach.  I had a previous problem with the transfer switch for the inverter and that is bypassed.
I'm on my way home and this shouldn't cause me a problem for my drive back.  Just wanting to get some ideas for when I get home to work on this problem.
Error #202 I am assuming this is an internal relay for the inverter bypass.  I turned off main power and battery power for a couple minutes but inverter didn't reset the fault.

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Re: Prosine inverter error #202

Reply #1 – February 10, 2021, 12:46:40 pm

Prosine inverter/chargers seem to have a life expectancy of how long you have had yours.  If they are repairable it is not cheap and the other half might fail pretty soon.  Maybe time to consider a replacement.

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Re: Prosine inverter error #202

Reply #2 – February 14, 2021, 09:46:09 am

I've ordered a Victron Multiplus 3000 but won't get it until later this week. Looks like the difficult part will be running a new RJ45 cable from the basement up to where the remote panel is. That'll be a good time to move the BMV712 inside.
I'll be going to spend a couple days in the coach later today for our version of this extreme weather.  My inverter/charger isn't working so I'm relying on solar (heavy clouds) and a small charger to keep the house batteries up. I have 50 amp power where it's parked so also have a couple small electric heaters inside and I'll have the diesel and electric aquahot running and watching my battery voltage.
I've been using my heat pump A/Cs down to about 35ºF and they're working well.  I'll be running them until they no longer put out heat and I'll post at what ambient temp. that occurs. These appear to be the original 1999 AC/s.

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