WFCO Converter Issues

[eeyore7718]

I have a 2006 Keystone Zepplin that has a WFCO 3 stage converter in it. The fan runs constantly on it even when nothing is turned on. Is this normal? If not are they really hard to replace?

[KenBob]

According to WFCO, the fan will come on when there is a 15 amp load. Check the batteries and the connections. It may be possible a failing battery can send a signal to the converter to start charging. There is some troubleshooting steps in this manual.

http://www.wfcoelectronics.com/documentation/manuals/Manual%20-%20WF-8735%20WF-8740%20English.pdf

May not be your unit. May be able to find the manual at the site. Again, check the batteries and connections/wiring and try the troubleshooting guide before condemning the unit.