Community Forums

forfun4149 · 08-11-2016, 01:42 PM

Hi again- Got 50 amp power hooked up and starting to find a couple of problems 1st the positive cable sparks when touched to battery terminal and batteries drain down in a couple of hours, where do I start checking?
2nd the thermostat does not light up but has 12 volts across the fuse, so I cant use a/c, does this mean the therm. is bad ? Any help is needed

MtnTrek · 08-11-2016, 03:27 PM

Welcome,

Typically battery terminal cables always spark some, even under minimal parasitic loads. You're removing the Pos. cable because?
How many and what type of batteries do you have, 12V, 6V?
With a 2004 trailer you should be on at least a second set of batteries.
1) check the labels on the top of the batteries for mfgs date markings. You very well may be due for your 3rd set? Old poorly managed batteries die quickly.
2) Check the output of your converter / inverter for 13V-15V.

Not all thermostats are illuminated you'll need to provide more info as to the make / model of your specific equip.

Best of luck.

Franka548 · 08-12-2016, 05:57 AM

forfun4149,
If you are plugged in to 50 amp, the inverter/converter will be feeding 12volts to the batteries to keep them charged. Are the batteries draining down while you are plugged in? Or when they are unhooked? You might want to get them checked to make sure that they are ok or not, you will have to have a load test done on them. Also make sure the cables are on the correct battery post. If you don't know what I mean, or can't figure it out, have someone that knows check them out.
The thermostat should light up when you go to change the temperature, it goes out shortly after that. If you have no digital numbers showing, then you might need a thermostat.
Frank

forfun4149 · 08-12-2016, 07:38 AM

Thanks for info, I am plugged into 50 amp [ just had wired up] yes batteries are draining down while plugged in. Both batteries are new interstate deep cycle, the cables are right. This spark is strong that happens when you hook up battery and can hear a clicking sound when doing so. I will have my son help me look for that asap. Thanks Frank, sounds like at least a thermostat. Opie

MtnTrek · 08-12-2016, 01:53 PM

OP,
batteries will not charge properly on only 12V. At rest, 12.2 volt batteries are 50% discharged.
Yeah swapping parts is one way to trouble shoot. So much for mystic tech support.

Be well.

forfun4149 · 08-13-2016, 07:19 AM

Please do not get me wrong as there is the inverter that I have not been able to check yet and just got info on the thermostat it is Coleman mach comfort php.