I had an E-6 Error. The fan had moved too far AWAY from the control box which has a sensor to detect the magnets in the back of the fan so it knows how fast it is spinning. I got a socket and tapped the fan in looking at the intake end so it moved towards the control box. Needs to be about 1mm but not touching or rubbing.

Thanks brother, it really helps me to fix my heater’s issue. Great job

U save me sir! I just bought one and have the same problem! Now it works perfectly! A new sub from Argentina ;D

Thank you for mentioning the sensor part! Hopefully that’ll help my solution

Thanks for the diagnosis...for those who are having the problem You can fix it much easier by just pushing the fan away from the fixing a little..

Thanks a million my fan was stuck fast!!!!

Just had this issue on mine. Turns out a piece of cardboard was stuck in the fan blade, probably from manufacturing. It was stopping it from spinning causing the code. Fished it out and it’s working great at heating my garage/shop now.

Hey ty very much for an awesome explanation. You helped us alot. Appreciate!

I got that code. but the fan moves freely. When it first "starts up".. The fan doesn't move at all. it just throws the code without moving. fan can spin by hand. When that happens, the screen does show that it is spinning. Ideas?

Thanks for your suggestions however, my E-06 isn’t scraping when I spin it with my hand. I tried to get it going by spinning it after depressing the On button and it almost kept going. But just ended up dieing again! . BTW, when I spin it by hand AFTER depressing the On button, then and only then do I hear a little tiny bit of scraping. As if the On button cause something to push out that wud make it scrape? Any ideas are very much appreciated. FYI, I primed it so I don’t think that’s an issue. And I’m about to purchase another motherboard cuz I read (somewhere) that helped someone.

The impeller can be reposition on the motor shaft (with a bit of force) no need for cutting anything