2006 Monaco Diplomat Inverter help

[David KV]

We picked up our new to us coach on Friday and since bringing it home I've had a fault light on the MagnaSine inverter. I'm able to invert however I'm not able to turn the charger on. The fault says low battery. I had 4 new 6 volt batteries installed at the dealership prior to pick up. My question is, would it help for me to do a hard reset on the Inverter or what other solution might fix this issue?

[wamcneil]

What is the battery voltage? Is it low?
Check the voltage at the batteries and also at the inverter?

If it's erroring and saying batt voltage is low when it's not really low, sounds like an internal problem to me. Might be worth doing a reset. Why not try it?

Might need to call tech support and describe the issue. I had some questions for them during my installation and initial setup and found them to be pretty responsive.

Here's the remote manual. Is this the remote you have? Low Batt fault is described on p27
https://www.magnum-dimensions.com/si...ev-D-ME-RC.pdf

From the manual:
4.4.2 Performing a Power Reset
To perform a power reset (also known as a “hard reset”):
1. Open the inverter’s positive DC disconnect (or disconnect the positive battery cable to the
inverter).
Note: If parallel stacked with multiple inverters, open all the inverter’s’ DC disconnects at the
same time.
CAUTION: If removing all battery power (positive and negative) to the inverter, do
not remove the DC negative connections to the inverter or any accessory until after
all positive battery connections have been disconnected. This will prevent damage to
the inverter or to any network connected accessory.
2. Ensure the inverter(s) and the remote are disconnected from all AC and DC power (the
remote display will be blank).
3. After the inverter(s) has been disconnected from all power for 30 seconds, reconnect the
inverter DC disconnects (or reconnect the positive battery cable) and resume operation.
Info: If DC disconnects are not used, there may be a momentary spark when the
positive battery cable is connected to the inverter’s terminal. This is normal and
indicates that the inverter’s internal capacitors are being charged.

[YC1]

Great info on the reset. Take a look at any lights on it first though.

Make sure your battery switches are actually on and also you may need your switch near the entry (if you have one) on to allow the batteries to be charged.

It is also possible the battery installer dropped a wire. Happens all the time so take some pictures of your battery compartment and wiring for future reference. Print some out and write the battery voltages down as well. Don't rely on remembering what they were a month from now. I keep a three ring binder with print outs and a huge file of pdf's with notes on them.

[David KV]

@wamcneil
That is my Remote and thank you very much for the Owner's Manual as that will be a big help in the future. I wanted to add that I am connected to 50amp shore power as well during this process. The batteries are low now after not being charged for several days.

[David KV]

@YC1
My switch near the entry (disconnect) seems to have a small window to show if it is connected or disconnected, however I see no change regardless of direction the switch is depressed. I realize that is a challenge and I figured maybe there is a burned light on the switch. I certainly believe in your process of notes, notebooks and more notebooks so I have already printed my ME-RC manual out for the remote.

[twinboat]

Did you check the circuit breakers on the inverter/charger ? They are sometimes hidden from view.

[David KV]

I have not checked them and not sure where they are located. Also if a circuit breaker needs reset is it possible the inverter would continue to work. I don't have any issue with the inverter only the charge portion.

[twinboat]

Originally Posted by David KV

I have not checked them and not sure where they are located. Also if a circuit breaker needs reset is it possible the inverter would continue to work. I don't have any issue with the inverter only the charge portion.

If it has " line in " and " line out " breakers, the " line in " could be tripped, only effecting the pass thru capabilities. It will still produce in inverted output power.

[twinboat]

Here is a screenshot from a Magnum Inverter.

[David KV]

Thank you very much and I will check this as soon as I get home from work this evening. My plan is to check the breakers and if all is well with them, my next step will be to conduct a hard reset. I hope one or the other is the solution as we are planning our first trip on Friday. If neither of those are the solution can I use my battery charger to charge the house batteries as I don't want to cause them any damage from being over discharged?

[kenwyatt]

Sounds silly I know but check the connection. Dealers have been known to screw that up

[YC1]

Originally Posted by David KV

We picked up our new to us coach on Friday and since bringing it home I've had a fault light on the MagnaSine inverter. I'm able to invert however I'm not able to turn the charger on. The fault says low battery. I had 4 new 6 volt batteries installed at the dealership prior to pick up. My question is, would it help for me to do a hard reset on the Inverter or what other solution might fix this issue?

I started from the beginning again. If you can invert, meaning you can get 110 volts out of the thing to some outlets this is a good sign.

Not charging indicates there may not be 110 volts to the input of the inverter/converter.

Your low battery fault is probably just stating the fact that the batteries are not charged enough and your inverter is or will shut down.

Check your AC breakers inside of course and cycle them. It could be just one 30 amp breaker for example that feeds the inverter/charger.

There is a cover panel where you can actually measure the input voltage. 110 volts that is.

If you start your engine and let it run for a few minutes the fault light MIGHT go away as far as the low battery issue. This is assuming other components in the complex system are working.

[David KV]

You all have been so helpful and I love this community aspect. I went home last night and per the suggestion and picture provided by "twinboat" I started with the breakers on the inverter. The first item I found was the 30 amp for input was popped. I reset it and I have everything working now as it should and batteries are charging. I will continue to monitor closely as to determine the reason it popped in the first place. I'm wondering if it could have been from overcharging as all 4 house and 2 chassis batteries were bad and have since been replaced. I would imagine this condition would put a strain on inverter, alternator and generator and I will ensure that doesn't happen again. Thank you all once again!

[twinboat]

That 30 amp breaker powers the charger section and every outlet that works without shore or generator power. Even with shore power on, it has to pass through that breaker.

The charger alone won't draw over 10 amps but combined with anything plugged in will add up. Hair dryer, portable heater, microwave, coffee maker, .......

Tripping that breaker is a common occurance.