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American Landmaster EV 2022, Will not go Forward or Reverse


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Hi All, again,

Now the Landmaster will not engage in Forward or Reverse, less than 20 hours run time.

Did a quick diagnostic with Navitas Dashboard App, problem:

Bus Under Voltage Fault

Description: Voltage on controller B+ has dropped below 18V
Check batteries, solenoid and connections
(3-1)

Email problem to Navitas.

Still 50% battery supply, charging anyway.

Will check items above plus wiring tomorrow, sun going down.

D. Newton

American Landmaster, EV, Purchase Aug 2022.

Extras - Power Steering, Roof, USB port.

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I noticed you added some manuals for your American Landmaster EV, thank you for sharing. Hopefully you will figure out the issue. This is one of the few EV topics I have seen, but I'm sure it'll grow as EVs become more widespread.

Here are your manuals. I edited the screenshot and descriptions.

 

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On 11/10/2022 at 6:55 PM, D. Newton said:

Hi All, again,

Now the Landmaster will not engage in Forward or Reverse, less than 20 hours run time.

Did a quick diagnostic with Navitas Dashboard App, problem:

Bus Under Voltage Fault

Description: Voltage on controller B+ has dropped below 18V
Check batteries, solenoid and connections
(3-1)

Email problem to Navitas.

Still 50% battery supply, charging anyway.

Will check items above plus wiring tomorrow, sun going down.

D. Newton

American Landmaster, EV, Purchase Aug 2022.

Extras - Power Steering, Roof, USB port.

Hi All, Well I did some troubleshooting (shotgun work), and I got the vehicle working.  I think the connect was not seated fully in the DC/DC Convertor (48v to 12V).  Not sure, I disconnected and reconnected a lot of wiring connectors.  See Pic1

I was using the phone App, Dashboard from Navatis to communicate with TAC2 EZ-GO RXV Controller, the green brick, it has Bluetooth.  The App is not very stable, I had to uninstall and reinstall to get it to work.  Just a reminder.  Don

Motor Control.jpg

DC to DC Converter 01 Loose Conn.jpg

TAC2 EZ GO RXV.jpg

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