PID tune not saving Duet maestro RepRap 3.0

[cianforstuff]

Hi guys,

Picked up a Maestro a few weeks ago and enjoying the RepRap experience to date, however, I'm struggling to get the PID for my bed to save.

Id run the autotune, that would be successful, id then try to save it. After the tune, I can let it cool down then start a print job with no issue, however, if I power down the printer and try to start a job I get there dreaded

"Error: Heating fault on heater 0, temperature rising much more slowly than the expected 1.8°C/sec"

I'm using the following firmware and bord :

• Board: Duet Maestro 1.0 (duetmaestro100)

• list itemFirmware: RepRapFirmware for Duet 2 Maestro 3.0 (2020-01-03b3)

I'm sure someone has hade a similar problem if there is a thread similar point me that direction
if any further info is needed let me know

Thanks in advance
Cian

[PCR]

Do you have a M501 in the config.g?

[cianforstuff]

I don't.
I've been blindly following a range of form posted and blogs so could have removed it, is it need or not if so why?

[Veti]

you either enable saving with M501 and save with M500 after tuning
or you add the parameter manually to config.g