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No 12v in coach. Lights, heat, ect.

Customer Question
No 12v in coach. Lights, heat, ect.
Submitted: 2 years ago.Category: RV
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Answered in 5 minutes by:
12/22/2015
RV Mechanic: Randall, RVIA Certification replied 2 years ago
Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 12,361
Experience: RVDA/RVIA Master Certified Technician with many years experience.
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Did you check the battery disconnect switch? Are you plugged into shore power or not?

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Customer reply replied 2 years ago
we are plugged in. 50 a service. Remote in coach that shows Ac power dark. Not sure where batt disconnect switch is?
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Usually by the entry door or on the overhead. Two switches on a bronze bezel. Usually Intellitec on the plate. One is for the coach batteries and one is for the chassis batteries. Check the main breakers in the pedestal to be sure they aren't tripped. Did you try the genset? Has this been working fine up to now? Please elaborate some on the circumstances here.

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Customer reply replied 2 years ago
Replaced batteries 2 weeks ago. Coach. Had trouble. Ended up one wire wrong position. Moved and everything worked fine. Just walked out to unit and it's working ? When I cut in heater and fan came on lights flicker. Many a sign of low bat voltage. ?
Customer reply replied 2 years ago
Dam auto spell. Sorry
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Could be, if you aren't plugged into shore power OR if your charging circuit isn't working well. If you have a small digital multimeter we can take some readings and see.

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Customer reply replied 2 years ago
I do and we can!
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Set your meter on DC volts and take a reading on the house batteries AT the connections TO the coach. You should see about 13.8 VDC or close.

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Customer reply replied 2 years ago
Ok
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Let me know what you find...........and I will make a phone chat option available for you if you think that might be easier to follow.

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Customer reply replied 2 years ago
12.7 vdc
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Not good..........do you have an inverter/charger or just a converter? If the former, check to see if it is on and hit the reset.

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Customer reply replied 2 years ago
Coach is off again
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Perhaps you are having problems with the transfer switch.........or do you mean just the DC portion?

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Customer reply replied 2 years ago
Reset magnum unit. Still no lights. Green indicator light comes on then blinks as advertised.
Customer reply replied 2 years ago
Just dc
RV Mechanic: Randall, RVIA Certification replied 2 years ago

It sounds like you are having problems at the automatic transfer switch. What happens when you run the genset?

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Customer reply replied 2 years ago
Haven't tried but will
RV Mechanic: Randall, RVIA Certification replied 2 years ago

10-4

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Customer reply replied 2 years ago
Gen set won't start. Tried aux battery switch in console , can here starter solenoid clicking like week batt
Customer reply replied 2 years ago
On gen set
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Sounds like the AC issue needs to be resolved and then check the charging. Can you access the main disconnect breakers in your load center to see if you have AC power there?

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Customer reply replied 2 years ago
I can cut off all ac breakers if that's what you mean
RV Mechanic: Randall, RVIA Certification replied 2 years ago

I mean access so you can test for AC power INTO them from the transfer switch with your meter?

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Customer reply replied 2 years ago
I'll need to pull panel cover off. Will that allow access.
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Yes........set your meter for AC volts and see what you have.

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Customer reply replied 2 years ago
Ok. Stand by
RV Mechanic: Randall, RVIA Certification replied 2 years ago

I'm here.........

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

Ground the negative lead to the busbar for the grounds or the neutrals.

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Customer reply replied 2 years ago
Ok taken cover off. Main breaker shows 121 V on both load sides.
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Can you get to the feeds into the inverter? And put some load on both sides and take another reading. Turn something on as you can have a good voltage reading with no load, but if there is a problem you might not see it. And I am wondering about the pedestal. Is this an older one?

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Customer reply replied 2 years ago
Please explain pedestal ?
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Where the shore cord is plugged in. Older ones can have issues with the prongs getting burned and then opening up under load. I have seen this in older parks........or are you at home?

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Customer reply replied 2 years ago
At home. New plug.
RV Mechanic: Randall, RVIA Certification replied 2 years ago

No adapters on the cord? Hooked up to a 50 amp dedicated plug?

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

Did you check the inverter to see if it shows it is on and not having any breakers tripped?

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Customer reply replied 2 years ago
I installed this converter under warranty. The incoming power internally wired would be hard to test.
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Tripped on the inverter..........

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

What is the make and model?

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Customer reply replied 2 years ago
No pop out fuses out.
Customer reply replied 2 years ago
07 Fleetwood , Providence 40 x
RV Mechanic: Randall, RVIA Certification replied 2 years ago

I don't understand that statement...........what is the make and model of the inverter?

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

A Magnum unit? Which one? Is it one or not?

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

On or not? Remote? Does it show it being on?

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Customer reply replied 2 years ago
Inverter is a Magnam ME 2000
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Is it on or not?

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

Do you have the manual for it?

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Customer reply replied 2 years ago
Remote not on.
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Did you try turning it on?

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

I suspect it was damaged when you got the battery cables hooked up wrong and that is why it is erratic and not charging the batteries. It can be checked and rebuilt if needed. When you hook up the batteries wrong you can damage all kinds of components. You might get a good mobile tech to come to your location for some testing.

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

You might try a reset...........check the manual or how that is done. That might solve this. IF NOT, you probably need to have it checked.

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

Attached is the manual for this if you don't have it handy............. https://www.fgc.edu/wp-content/uploads/2012/01/fleetwood-magnum-inverter.pdf

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

See page 33 for the trouble shooting...........

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Customer reply replied 2 years ago
You want to come
RV Mechanic: Randall, RVIA Certification replied 2 years ago

I live in California............ The batteries may be too low for operation. You may have to have them charged up and load tested before you can get this to perform.

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Customer reply replied 2 years ago
I just cut on aux battery switch and all lights came on?
RV Mechanic: Randall, RVIA Certification replied 2 years ago

I think that was the first question I asked here..............

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

The batteries still need to be checked and charged. IF the inverter won't come on and do that you will have to get a stand alone charger or take them into a shop to be charged.

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Customer reply replied 2 years ago
Does the aux battery in the on position connect engen batteries to house batt
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Only if it is the "Auxiliary start" switch and that is a rocker switch and only stays engaged as long as you hold it down. The battery disconnect switch is the same way, but the solenoid stays in the position you call for. You might want to have a mobile tech come over and give you a quick course on how everything here works.

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RV Mechanic: Randall, RVIA Certification replied 2 years ago

Just checking back in to see if you were able to get this resolved or do you still need some assistance here?

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Randall
Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 12,361
12,361 Satisfied Customers
Experience: RVDA/RVIA Master Certified Technician with many years experience.

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