The Load Output (with user def. Algorithm 1) is not working properly on MPPT 75/15

[hasnain037 (Muhammad)]

Hi everyone,

I have the Victron smart charge controller MPPT 75/15. The Load output is configured to user defined algorithm 1: (off<11.00V, on>13.00V)

The output is off when battery is 11.00V but when the voltage increases above 13.00V, the load mostly still remains off (which should not be).
Note: I have been waiting for more than 2 minutes to get the output results.
Also, the firmware is updated to latest which is x1.64.
The test wiring diagram is provided below

The load output on/off status is monitored on both by digital multimeter and on VictronConnect App.
Kindly share your opinion.

[Ludo (nonandat69_)]

Probably not meant to work without pv present

[hasnain037 (Muhammad)]

I tried also with the PV and load connected but this issue is occurring, but if I set the power supply voltage to 14V DC (With user def. algorithm 1, load switch high voltage level:13.00V), it will turn on the load output.

[NotApplicable]

There are three of us reporting the same issue. Victron must have a bug in their product (hardware or software). Not sure how to raise it with them yet.

I pinged my supplier as Victron recommend and got zero reply from them.

Others with the issue are:

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[thiemovanengelen (Thiemo van Engelen (Victron Energy staff))]

Hi @hasnain037

Just to be sure, do you have the streetlight functionality off?
And what about VE.Smart networking?
Or do you still have the jumper somewhere on the VE.Direct port?
Asking because these are all things that might influence the behaviour of the load output.

Regards,
Thiemo van Engelen

[hasnain037 (Muhammad)]

Hi @thiemovanengelen,
The streetlight functionality is off, also smart networking is off.
Jumper is also removed.
As per the operational manual, the test is performed, but sometimes it will work sometimes not.

[hasnain037 (Muhammad)]

Yes, sometimes it will work sometimes not.

[thiemovanengelen (Thiemo van Engelen (Victron Energy staff))]

Hi @hasnain037

Do you have anything connected to the load output, except for a digital multimeter?

Kind regards,
Thiemo van Engelen