Forum Discussion

dvleemin's avatar
dvleemin
Explorer
Aug 27, 2020

Dimension Inverter/Charger not charging batteries

Hi,
I was hoping someone had some ideas on how to resolve an issue I have with my Dimension Inverter/Charger not charging batteries.

Here are the details on the unit:
- 2005 Itasca Horizon 40AD
- Dimension 12x20B3RT Inverter/Charger

Problem:
- when plugged into shore power the batteries are not being charged.
- on the control panel it says: "CHGR-OFF NO INPT" AND "INVERTER-OFF
- the house and coach battery voltage is around 12.7 and shows that it is not charging
- The control unit does show that its on 30 amp
- 120V is available throughout the unit
- running the generator and not connected to short power results in the exact same result
- all fuses on the Dimension, on the chassis, and on the house seem fine

I was able to find the manual for the Dimension but not a lot of help: https://www.rvtechlibrary.com/electrical/dimensions_owners.pdf

I'm guessing some sort of transfer switch type of issue?

Anyone have any ideas on next steps to trouble shoot it?

Thanks,

Darryl
Class A
  • Lwiddis's avatar
    Lwiddis
    Explorer II
    Aug 28, 2020
    2005 converter needs replacement. You’ve been on borrowed time.
  • time2roll's avatar
    time2roll
    Nomad
    Aug 27, 2020
    Could try a full reboot by removing 120v power and disconnecting the battery connection for a few minutes.

    My guess, the inverter is shot.
  • dvleemin's avatar
    dvleemin
    Explorer
    Aug 27, 2020
    CA Traveler wrote:
    Since the message indicates no AC input, what voltage do you read at it's input terminals? If you have done the above and don't know how to safely check then get help.


    Input voltage is right around 120V . . .
  • dvleemin's avatar
    dvleemin
    Explorer
    Aug 27, 2020
    ndrorder wrote:
    Here are three things to check.

    1. None of the circuit breakers in the main panel at the foot of the bed are tripped.

    2. None of the circuit breakers integral to the inverter/charger are tripped.

    3. Verify 120V input power to the inverter/charger with a digital voltmeter.

    Since you mentioned searching for manuals, I found the Itasca manual at the following link.

    http://www.winnebagoind.com/resources/manuals/operatormanuals2005.php


    Checked all these . . . 120V does even end up at the plugs in the RV.
  • dvleemin's avatar
    dvleemin
    Explorer
    Aug 27, 2020
    Executive wrote:
    Try pushing the on/off button three times and see if the inverter turns itself back on. Also check the internal fuse in the unit itself...Dennis


    Hitting the reset three times did nothing (didn't change anything on the display either oddly enough).

    Confirmed the main fuse is fine.
  • CA_Traveler's avatar
    CA_Traveler
    Explorer III
    Aug 27, 2020
    Since the message indicates no AC input, what voltage do you read at it's input terminals? If you have done the above and don't know how to safely check then get help.
  • ndrorder's avatar
    ndrorder
    Explorer
    Aug 27, 2020
    Here are three things to check.

    1. None of the circuit breakers in the main panel at the foot of the bed are tripped.

    2. None of the circuit breakers integral to the inverter/charger are tripped.

    3. Verify 120V input power to the inverter/charger with a digital voltmeter.

    Since you mentioned searching for manuals, I found the Itasca manual at the following link.

    http://www.winnebagoind.com/resources/manuals/operatormanuals2005.php
  • Executive45's avatar
    Executive45
    Explorer III
    Aug 27, 2020
    Try pushing the on/off button three times and see if the inverter turns itself back on. Also check the internal fuse in the unit itself...Dennis

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