Help with Coach battery Drain

[Medic318]

Thanks again everyone that has replied 007 yes I have talked to nemar and they to are stumped. as a matter of fact while I was at the Newmar dealer a factory rep was there and he could not figure out the problem. Targaboat I was using an amp meter inline from the batteries when I compared the reading from my panel in the coach it was so close I have gone to trusting the coach readout I have time and am willing to put in the effort as I have stated I have pulled the fuses to all the circuts should I be pulling individual bulbs as well? how would I check to see if the small solar panel is causing the drain? I love our coach but it is driving us nuts

["007"]

The small solar panel circuit is explained in this link I had posted.
Solar panels should charge the batteries through a controller can there be a reverse affect if something is wrong with controller.
Solar Systems

If you read Product Description of this link talks about current draw of batteries.

Do you have a switch of some kind to disconnect the Solar system from your battery system and see if the 4 amp draw is no longer there.

[Frutza]

I dont have solar, yet, but when I looked at it, If you dont have, or the controller isnt working correctly when its dark out it will have a drain, reverse power. Also when you check for drains at the batteries try to identify to what cable has the drain, you should have more than one battery feed to various things and then try to indentify anything thats been added

[targaboat]

You have done your home work on the current measurement. How about compartment lights you think are off. Also every device which uses 12 volts which is automatic has some drain, like frig, water heater, control panel, solenoids, microwave, chargers of all kinds, radios, remote operated devices such as awnings, door locks, ----I am winding down but sure there are more. Together they can add up. Tanks heaters you might not even know you have. I am sure you have considered most, but all??? One would almost have to make a check off list. I have forgotten, have you removed all of the 12v fuses? Sit in the recliner after you have tired yourself out and use you eyes and I bet you will think of something else. Entertainment system on but muted. The one outside behind the lock compartment you do not think about.

["007"]

Tank heaters could be off 12v but I think they are off a 120v circuit.

[targaboat]

Don't for get that many 120 volt items have 12 volt controls including solenoids which are operated by 12 volts which can be a drain on the 12 volt system. I believe that most will say that does not amount to much, but that is exactly what the OP is looking for in his search for relatively small drain to start with.