Furnace stopped working!!

[Twopooched]

We are clueless as to why our furnace stopped working. 07 Springdale. It clicks from the thermostat but doesn't come on. It worked great and then just stopped working. No were not out of gas. We looked but not sure what to try to fix.

[NH_Bulldog]

Like I wrote in your other post, without batteries connected you are overloading your converter and it cannot supply enough power to run everything. Think of your converter as a battery charger not a power supply source. Everything that needs 12v to run (like your furnace) normally draws out of the battery or batteries and the converter tops the battery off over a period of time.

[dutchmensport]

Originally Posted by NH_Bulldog

..., without batteries connected you are overloading your converter and it cannot supply enough power to run everything. ...

Agree with Bulldog!

[ChuckS]

Since you are running with NO batteries off shore power and the WFCO converter is suppling ALL DC voltage requirements If first use a multi meter and measure output of the converter at the disconnected battery leads or directly at the DC Bus on your power center

The OEM stock WFCO converter IS more than capable of supplying your 12 volts to your normal inside systems that need 12 volts DC to operate..
Suc( as the furnace

However DO NoT try to operate slide outs our leveling system without a battery... that will result in issues

Since all you are hearing is a “click” sound Id check the fuse for furnace with an ohm meter to verify it’s good and that 12 volts is in fact going to furnace control module

If that’s good then...if you have the skill sets.. you will have to check the furnace blower motor to see if it is getting 12 volts DC on its two power leads and verify blower motor isn’t seized

[travelin texans]

By removing the battery/ies you've also lost the protection of the LP/CO detector as it's typically connected directly to the batteries.
I agree you can run most 12 volt items with only the converter but will shorten it's life by doing so.

[sourdough]

You need to get a battery(s). Hopefully you haven't killed your converter.

[Twopooched]

We did have the battery connected and charged when the furnace quit working. We only recently disconnected batteries when we couldn't figure out why the water pump cycles randomly. Which didn't shut it off either.

[Twopooched]

Our detector is not 12 v. I think we had to replace AA batteries.

[Twopooched]

Please note our camper is a 2007

[flybouy]

First off welcome to to the forum. If you go up to the "USER CP" in the black bar at the top of the page and edit your signature you can can add the make, model and year of your trailer and tow vehicle. That will show up on every post you make and enable responders to better help you.

Yes you need the battery. The water pump runs on 12v dc and when you removed the battery the converter supplied it with 12v dc. You either have a bad switch or the previous owner wired it direct. Go to the power center and you will find a fuse for the water pump. Pull the fuse and the pump will stop.

The detector referenced earlier is a CO and LP leak detector that is wired into the 12v dc system. The smoke detector is typically AA or 9v dc battery powered like in your house.

There are 2 electrical systems in a camper. 12v dc (battery that's charged by the converter) and 120v ac that's supplied by shore power cord. The 12v dc powers the lights, Refrigerator control, water heater control, furnace control and fan, air conditioner control including thermostat) radio, tv antenna booster, CO/LP leak detector, Slide motors, Awning (if not manual), stabilizing jacks and tongue jack (if not manual), bathroom fan & any ceiling fan in a ceiling vent, range hood fan, and outdoor lights.

The 120v ac runs the 120v ac to 12v dc converter, the heating elements only in the refrigerator and water heater, the air conditioner compressor and fan, and all "standard" outlets like you have in your house. The television will be plugged into a standard 120v outlet that's typically behind it.

Hope this helps.

[Twopooched]

I will try again to find the fuse. Thanks.