Electrical problem
Voltage drop due to undersized electrical system ?
Do your headlights also dim when you do this ?
EDIT:
You could add a capacitor like they do in high draw stereo system to help with the surge ?
I have twin fans which used to come on at same time with the same results as you, and now running a Davies Craig controller that turn on one at a time....much less draw at one time.
Last edited by Doug G; Mar 30, 2019 at 06:10 AM. Reason: add-on
Last edited by chines72; Mar 30, 2019 at 03:02 PM.





