Can't turn off Heated Bed after upgrading to .91 (Works fine in .82) (8 replies)

I have been using .82 firmware with my Azteeg X3 and VIKI LCD since it came out. No issues.

Today, I upgraded the firmware to .91 using the configuration tool. I also upgraded Repetier Host to 1.04.

In .82 when I enabled the heated bed in Repetier Host, the LED on the X3 as well as on the Viki LCD would come on to let me know that the heated bed was on. I could also see the temperature increasing and the target temp. Likewise, when I disabled the heated bed in Repetier Host, the LED on the X3 as well as on the Viki LCD would go off to let me know that the heated bed was OFF. I could also see the temperature decreasing and NO target temp.

The extruder heater LED works in the same way.

That is how I expect it to work.

However, with .91 Firmware and Host 1.04 (Windows) I have problems when I click the button to disable the heated bed the LED on the VIKI LCD goes off but the Heated Bed remains on and the LED on the X3 remains on. The LCD shows a target temp of 0. The only way to prevent this runaway heater condition is to reset the X3 via the Host software or by pressing the reset switch.

Normally, with those smptoms, I would suspect a bad X3; however, if I reload the .82 firmware (which, thankfully, I saved) everything works great.

I have compared the PINS.H, UI.H and as best as I can tell they are equivalent.

Am I missing something? Or is this a bug?

I would appreciate any advice you can offer.

Thanks in advance!

Eric

FYI: I made a donation when I first installed.