Renogy Rover 60a weird voltage at +PV Terminal

[Bobstar]

Renogy Rover60a trouble shooting problem
On a 24v system, after burning a wire and circuit breaker between the PV array and the controller (burnt on the controller side) I found the controller +PV terminal on the controller was emitting 156 volts no idea why? My solar panels, as I have them all in parallel are outputting 40v
Any help would be appreciated

Thanks
Bob

 

[12VoltInstalls]

+PV terminal on the controller was emitting 156 volts no idea why? My solar panels, as I have them all in parallel are outputting 40v

Dumb question: Do you have four panels?
Was that 156V without the panels connected?

Just fishing in the dark here.

 

[Bobstar]

Dumb question: Do you have four panels?
Was that 156V without the panels connected?

Just fishing in the dark here.

Yes I have 4 panels they are in parallel, but the 156v was without the panels connected

Bob

 

[12VoltInstalls]

So return that ratty rover and buy something good but less moula

 

[efficientPV]

What makes you think you have 156V. Sounds more like a bad meter.

 

[12VoltInstalls]

What makes you think you have 156V. Sounds more like a bad meter.

If it’s somehow getting backfed from a dreadful mod-sine inverter is my only thought. That’s around a probable highest volts of stepped sine high-side output

 

[Bobstar]

What makes you think you have 156V. Sounds more like a bad meter.

Definitely not a bad meter Have 32 volts from the panels and 156 v from the controller

 

[Bobstar]

If it’s somehow getting backfed from a dreadful mod-sine inverter is my only thought. That’s around a probable highest volts of stepped sine high-side output

The feedback is coming from the controller it’s not connected to anything except the 24 v battery. When disconnected from everything left for 1 hr the voltage drops to zero at the +pv. When powered up by the battery terminals +pv has 156v battery + 25v

 

[12VoltInstalls]

Is that AC volts? But no current?
And if DC volts is it pos on the pos(+) side?

 

[Bobstar]

No it’s DC and yes it is positive on the + side
At night the controller is actually draining batteries unless I disconnect the +pv terminal

 

[12VoltInstalls]

At night the controller is actually draining batteries unless I disconnect the +pv terminal

Ok. There’s the issue.

you have 156V

Maybe 15.6 on the correct scale?!

have 4 panels they are in parallel, but the 156v was without the panels connected

Please draw out your panel array wiring, and post it with the panel brand, model, and specs.