No 12vdc power to refrigerator, A/C or radio

[Rickdellinger]

12volt convertor broke replaced it now we have no refrigerator power or ac power or the radio at aloss for what could be wrong

[RogerR]

Check your connections on your breakers and fuses. My ground came loose at the fuse panel last year and was the dickens to find. Was in the ground bar but loose, looked ok but just stuck through the middle and no contact.

[Rickdellinger]

All my interior lights work are they a different ground?

[mboy]

you're going to have to follow the wires. I suspect you have a GFI ...use volt meter. You need to find what is on that line.



good luck.

[Rickdellinger]

Ok thanks gif plug is good I think it might be the ground d some how lights are grounded but the other stuff is not connecting well for some reason

[RogerR]

Some and maybe all your lights will ground to the aluminum body it available. ( why waste the wire and time to run two wires when the body serves the same purpose ). But I would check the wire from the fuse body connection. The positive wire could also be loose or corroded.


I should have read your post more carefully, If no AC and no DC you could have a bad new converter. Check voltages and see if anything is coming out of it at all. something is screwed up and I am at a loss except to advise looking at every connection.

[Cavie]

Originally Posted by Rickdellinger

12volt convertor broke replaced it now we have no refrigerator power or ac power or the radio at aloss for what could be wrong

We need more info. What make and model RV do you have. Why did you change the converter? What fridge do you have? Residential or RV gas/electric?


You have 2 different problems going on.
Residential fridge uses 120 volts AC. RV uses 120 volts AC and 12 volts DC for control circuit.

You radio uses 12 volts DC.

AC = electricity. A/C = Air conditioning. You A/C is on a 20 amp AC breaker.
you will need a volt meter to trouble shoot this problem.

[Rickdellinger]

Norcold fridge rv electric converter stopped working after several. Years old 20 amp breaker is new and good but the thremostate has to have 12volts

[Vicr]

It could be about 20 different things. hire an electrician and have the installation wired correctly.

[Cavie]

Originally Posted by Rickdellinger

Ok thanks gif plug is good I think it might be the ground d some how lights are grounded but the other stuff is not connecting well for some reason

It's obvious you have no knowledge of electricity. Please call an electrician.

[JimD]

Those items should work even with no converter attached. The battery should still power everything. Think about it, these items would work if you weren't plugged in.

Have you checked all of the fuses? If some 12 volt items work while others do not, you have 12 volt power to the fuse panel. The 12 volt circuits are protected by fuses, the 120 volt circuits are protected by circuit breakers.

Sometimes when a fuse blows you can not see it in the fuse. You could test each fuse with an ohm meter or take a known good fuse and just plug it into each spot one at a time.

Knowing how to use a multi-meter is very useful for owners of RVs. Measuring 12 volts is safe. If you get into measuring 120 volts, you better know what you are doing.

[Rickdellinger]

Yes used a meter all are good and had an electrician he said no 12volt was coming out of converter but obviously there is lights work and no battery on it tried to hook one up and test that side and still nothing has to ba something like the ground or the converter is not big enough but its same size anps wise as old one

[Cavie]

Originally Posted by Rickdellinger

Yes used a meter all are good and had an electrician he said no 12volt was coming out of converter but obviously there is lights work and no battery on it tried to hook one up and test that side and still nothing has to ba something like the ground or the converter is not big enough but its same size anps wise as old one

1st get a new electrician. If no battery and you have lights the converter is working. Even a non electrician can figure that out. The A/C has absolutely nothing to do with the Converter. It is on it's own 120 volt AC 20 amp circuit breaker. The fridge is also 120 volts. It does use some 12 volts for the control circuit and the light inside.

[Cavie]

Originally Posted by JimD

Those items should work even with no converter attached. The battery should still power everything. Think about it, these items would work if you weren't plugged in.

Have you checked all of the fuses? If some 12 volt items work while others do not, you have 12 volt power to the fuse panel. The 12 volt circuits are protected by fuses, the 120 volt circuits are protected by circuit breakers.

Sometimes when a fuse blows you can not see it in the fuse. You could test each fuse with an ohm meter or take a known good fuse and just plug it into each spot one at a time.

Knowing how to use a multi-meter is very useful for owners of RVs. Measuring 12 volts is safe. If you get into measuring 120 volts, you better know what you are doing.

Post #1 OP stated no refrigerator and no ac. By ac he was wrongly describing his Air Conditioner. Both 120 volt items. Fridge needs 12 volts for control circuit and lights. He should have 12 volts for the fridge coming from the working converter.

[Cavie]

Originally Posted by Rickdellinger

All my interior lights work are they a different ground?

Lights are 12 volt systems. The trailer frame is the ground. All 12 volt systems use the frame as ground. The builders do run a ground with each hot wire from the fuse panel.

Like In said please call a new electrician.

[Rice1951]

Rick, step back and take a deep breath. In your first post you stated no refrigerator power or ac. Later you mention your refrigerator is a Norcold which would lead me to believe it is not a residential fridge but rather runs on propane and you need 12 vdc for control power.

When you said no ac, did you mean no 120 vac or did you mean the A/C (air conditioner) is not working as Cavie mentioned?

When it comes to multiple electrical problems you will rarely fix everything at once unless you had a major component failure. What led you to believe you had to replace the converter in the first place? If you were having problems before you replaced the converter then you didn’t fix it with a new one.

As both Cavie and Vicr mentioned you need to find someone with experienced electrical knowledge to help you through this. You seem to have partial 12 vdc since some lights are working and others are not. It can be complex but if you have someone who is competent they will be able to step through the process to find and fix the problem(s). Good luck.

[ALJO]

Many electrical problems on RV's are related to ground problems. If your beginning source 12 volt is correct, connect a neutral/ground wire to the panel and run it to your end source to check for 12 volt. Also note; if it is in a slide be sure the wiring under the slide is not damaged.

[norty1]

I hope the op will clarify just what is not working. It seems we are going off in many wrong directions trying to troubleshoot what is not clear at least to me. Rickdellinger the op, please don't get discouraged and give us another shot at what is not working.

Many times when troubleshooting, it's easy to go off on a tangent from a wrong test or interpretation of a test.

[Rickdellinger]

Yes air conditioning is ac and no problems before all need 12vilts to run controls and tun all summer except air conditioning when not there old converter was like 12 years old and fan stopped while away and it stopped working of that helps

[Rickdellinger]

Air conditioner needs 12 volts for thermostats refrigerator needs 12 volts for controls on front and radio is a radio the 13volt converter runs all summer on the fridge fan stopped so it burned up replaced it all 12volt works except fridge air and radio dose that help