Charge controller

Submitted: Saturday, May 01, 2010 at 13:09

ThreadID: 78133 Views:3185 Replies:2 FollowUps:4

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ronrox

We have a Powertech MP 3129 PV Charge Controller running our 12v system from a 120 watt pannel. The readout screen on the controller has lost all the numbers and just has black squares. Can this be fixed or do we need to buy a new controller

Thanks would appreciate any help

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Reply By: Mandrake's Solar Power- Saturday, May 01, 2010 at 13:33

Saturday, May 01, 2010 at 13:33

If it still works as a PV controller then there is no need to get a new one unless you particularly want to see the input / output numbers ..

Most of the new controllers and MPPT units only have LEDs to indicate connected , charging and battery SOC ..

Cheers

Steve

AnswerID: 414961

Follow Up By: ronrox - Saturday, May 01, 2010 at 14:15

Saturday, May 01, 2010 at 14:15

Thanks for your reply Steve.... as far as i can make out its still working as the small green light is on....... but i do like to see whats happening

ronrox

FollowupID: 685154

Reply By: Battery Value Pty Ltd - Saturday, May 01, 2010 at 14:28

Saturday, May 01, 2010 at 14:28

ronox,

'black squares' makes me think your readout is a 'seven segment LED' type.
LEDs don't burn out just like that. So you'll most likely be able to fix it by opening up the unit and look for bad connections. If there are some cable connectors on the circuit board, wiggle them a bit in their sockets.
Sometimes it even helps to tap the case with the screw driver handle while the unit is in operation, but be gentle.

Best regards, Peter

AnswerID: 414966