Hello and excuse me for my poor english (I write from Italy). I have a problem with my old Ormerod 2 (528.2): I finally decided to update firmware (now 1.26.1) and web interface (1.22.6)..... but when I restarted the printer, bed and hotend show 2000° (open circuit) ! I test the thermistors (both 122k) and also wires appear ok. Pheraps a bad config.g or a vssa fuse problem? This is my config heaters section: ; Heaters M305 P0 T10000 B3988 R4700 ; set thermistor + ADC parameters for heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1 M143 H1 S280 ; set temperature limit for heater 1 to 280C Thanks https://reprap.org/forum/read.php?4,888978,888978#msg-888978 Sat, 18 Apr 2026 00:21:19 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,888978,888991#msg-888991 https://reprap.org/forum/read.php?4,888978,888991#msg-888991 Thanks
I post my question in hardware and wiring section.
(tu)]]> SM180 Reprappers Tue, 05 Apr 2022 03:11:27 -0400 https://reprap.org/forum/read.php?4,888978,888987#msg-888987 https://reprap.org/forum/read.php?4,888978,888987#msg-888987 forum.duet3d.com].]]> dc42 Reprappers Mon, 04 Apr 2022 15:52:01 -0400 https://reprap.org/forum/read.php?4,888978,888978#msg-888978 https://reprap.org/forum/read.php?4,888978,888978#msg-888978 I have a problem with my old Ormerod 2 (528.2): I finally decided to update firmware (now 1.26.1) and web interface (1.22.6)..... but when I restarted the printer, bed and hotend show 2000° (open circuit) !
I test the thermistors (both 122k) and also wires appear ok. Pheraps a bad config.g or a vssa fuse problem?
This is my config heaters section:

; Heaters
M305 P0 T10000 B3988 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C

Thanks]]> SM180 Reprappers Mon, 04 Apr 2022 02:18:40 -0400