Re: Heating failed

Hello, Im having the same issue. I've been printing all weekend with no issues whatsoever but I was wiping the glue off of my glass bed with a damp rag and I tried to print right afterwards. Now, my LCD readout is just saying "Heating failed PRINTER HALTED Please reset", whenever I attempt to print.

I exported the Gcode terminal and right when the error message pops up on the LCD control screen, I see this in the G Code terminal:

<-ok T:27.4 /0.0 B:28.5 /70.0 @:0 B@:127 [60.013]

<-Error:Heating failed, system stopped! Heater_ID: bed [60.227]

<-Error:Printer halted. kill() called! [60.227]

I looked around on some other forums and read this:
https://github.com/MarlinFirmware/Marlin/issues/2323

Last comment in the thread was:

Ok, I solved the problem, Cartridge Heater was getting broken.
After replacement, the temperature rises quickly.

I dont want to go and start tearing the printer apart. How can I determine definitively if the heater cartridge id indeed the problem?

Thanks in advance.