Beeping Issue

[RL Travels]

  

2024 Elite II #1541

Good morning, Oliver owners. I’m reaching out to see if anyone has experienced something similar or might have an idea what caused the “beeping” issue we dealt with last night.

Setup:

• Lithium Pro Package – 390AH Lithionics batteries
• 3000W Pro Inverter
• Batteries fully charged
• Connected to 30A shore power
• Progressive external surge protector plus the internal Oliver surge protection

Around 11:30 PM, we woke up to a beeping sound but couldn’t immediately determine where it was coming from. We checked the CO2 detector, MaxxAir fan, and propane monitor — all appeared normal.

The beeping would stop for 10–15 minutes and then start again. During one of the episodes, the Xantrex wall control showed a red light and was also beeping. Unfortunately, I didn’t catch the exact readings before the light went out and the beeping stopped again.

The Xantrex app on my phone briefly displayed an alert, but it disappeared within seconds. I think it may have said something about high battery voltage, but I’m not certain.

Here’s what I tried:

1. Disconnected the external surge protector at the pedestal, thinking it might be the issue. Same results. 
2. Switched from the 30A connection to the 50A adapter connection. Beeping continued. 
3. Tried turning the batteries off, at which point I noticed the blue lights on the batteries were blinking.
4. After that, the trailer power started cycling — lights, AC, and radio turning on and off intermittently??

I had assumed the trailer could still run directly from shore power with the batteries off, but that didn’t seem to be the case.

Finally, I turned the batteries back on, left the trailer plugged into 50A shore power, and since then everything has been operating normally with no additional beeping.

I’ll also post this on the Oliver forum for those not on Facebook, and I may give Oliver Service a call today.

Any thoughts, similar experiences, or troubleshooting suggestions would be greatly appreciated. Thanks in advance.

[Galway Girl]

I vaguely remember needing to reset a parameter within the settings of the Xantrex to avoid that problem.  
 

The battteries blink When charging so that’s normal.

 

I n our case the LOW Battery Cutoff Voltage setting was not set properly after an update to our system....and it would do the beeping thing.   The settings are easily changed in a data table on your xantrex phone app.

Your settings would be the column to the left of the red column below:   LCBO Voltage can be set from 11.5-12.1 

 

FURTHER INFO:

 

Here's some data from the web:

A beeping sound from a Xantrex inverter charger is an audible alarm indicating low battery voltage, an electrical overload, or internal overheating. The system uses the beep to protect the internal components and the connected battery bank from permanent damage. [1, 2, 3]

 

Most Common Causes

• Low Battery Voltage: The battery bank has dropped below the low-voltage cutoff threshold (typically around 10.5V for 12V systems). This can happen if the batteries are drained, a battery cell is dead, or the charger is disabled.
• AC Output Overload: The continuous power draw from connected appliances exceeds the total wattage capacity of your Xantrex unit. This triggers a warning beep before the system shuts down to protect its circuits.
• Overheating (Thermal Shutdown): Poor ventilation, blocked cooling fans, high ambient air temperatures, or heavy prolonged loads can cause internal temperatures to spike.
• High Battery Voltage: An external charging source like an un-regulated solar controller or high-output vehicle alternator is pushing voltage above the upper safety limit (usually >15.5V).
• Bad Cable Connections: Loose, corroded, or undersized DC cables cause a sudden voltage drop across the connection terminals under load. The inverter reads this localized drop as a dead battery and triggers an alarm. [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

 

Troubleshooting Action Steps

1. Check the Digital Display: Look for error codes like E01/E05 (Low Voltage), E03/E06(Overload), or E04/E07 (Over-temperature) to pinpoint the exact failure type.
2. Verify Voltage with a Multimeter: Test direct DC current across the battery terminals. If it reads under 12V, plug into shore power or run a generator to engage the battery charger.
3. Shed Electrical Loads: Unplug high-draw appliances like microwaves, coffee makers, or hair dryers to see if the beeping stops.
4. Inspect Physical Connections: Tighten all cable terminals. Clean off any green or white corrosion crust with a wire brush. Ensure the cooling fan spin freely and the air vents are completely clear.
5. Perform a Hard Reset: Turn off the unit. Completely disconnect all sources of AC shore power and DC battery power for 5 to 10 minutes to reboot the internal microprocessors. [1, 2, 3, 4, 5, 6, 7, 8, 10, 11]

 

Edited Thursday at 08:56 PM by Galway Girl
removed last 2 lines as not needed

[RL Travels]

Thanks !  I checked the settings and mine were at 11.5.  Running fine now but if we experience the issue again I'll bump the setting to 12.1. 

[DanielBoondock]

18 hours ago, RL Travels said:

Thanks !  I checked the settings and mine were at 11.5.  Running fine now but if we experience the issue again I'll bump the setting to 12.1. 

I have the same setup. The factory had set the low voltage cutoff to 11.1, but their documentation specifies 12.1. I assumed it was an error and bumped to 12.1. Previously I could run two appliances simultaneously but now only one. I’m guessing that 11.1 might be stressing the battery 

Your LBCO was 11.5? That’s odd. At any rate I’m not sure that’s your problem, sounds like a different error condition. 

Also I recommend calling Xantrex customer support directly, they’re GREAT.

1-800-670-0707

The guy I talked to knew exactly my problem and finished my sentence for me. Then proceeded to tell me some hilarious stories 😅

 

Edited yesterday at 01:44 PM by DanielBoondock

[Mroth]

How can I figure out if my system is the 390ah or the 650ah? I’m looking at my settings and the LBCO is 11.5 v

I’m not having any issues, but I have updated the firmware a few times so I want to make sure I have the settings correct. 
 

I am pretty confident I have a 390 ah system..

should I leave the settings alone or change them?

sorry to hijack your thread. 
Marc