In hot water with hotwater tank

[Adam39601]

Hello, I need some help. I just got into the camping in camper stuff, little lady is not fond of a tent. So got a 06 Gulfstream kingsport. Had to replace hoth20 tank . Can any on tell me what an where the 4 wires go to on tank. I know they are the 12v part but not sure .any help would be great. Thanks

[Bike Dr]

hey adam, i guess the 1st ? is what you have meaning gas or electric or both? and 2nd how was it wired when you removed the old one? whats the make and model of the water heater to better assit you in getting you out of hot water with the misses unless you fix it!! lol

[Adam39601]

Ok what was in it originally was a atwood 6 gal gas/electric , I put in a geriad tankless in just gas with 12v to spark start. The picture is how it was wired with the tank. I traced the wires from the switch to the tank.

[Bike Dr]

okay perfect! that's my next upgrade, now not all of the wires from the old heater are needed, some models are 120v plug in so you shouldn't need 12v, if its not wired use the black, white, and ground... that's 120v system!!make sure you know your voltage for what your unit calls for. If it is 12v signal do not put 120v to it,, the units will not run unless they have flow, run the water to start the tankless. it may need to try a few times for initial startup to purge the lp line of any air.. i hope this helps


ps i should have mentioned if the unit is 12v, then you should not need 120v wires just cap them off

[Adam39601]

Thanks that is what I was thinking, the new tank just has +12wire an-12 wire an two wire that go to the control box. So I was just going to put a switch from the old switch spot with a new one ..... should I use the -12 line for my switch line

[Bike Dr]

yes sir you are now a professional! i mention both styles because i install them as part of my profession, so may have went a little overboard with info..you will love it endless hot water is a wonderful thing. enjoy now you are out of hot water!!! happy camping

[Adam39601]

Thanks for help

[THenne1713]

Two are 12vdc going to a switch; (maybe Red/Black?) most all controls are 12v, e.g. LP-Gas

If you also have 120vac elements/ controls, for when plugged in, or running GENerator, suspect that is the OTHER two wires (maybe black/white?) Good luck.