I have a 50w cartridge connected to a duet smart effector, to the H+ and H- input. I have tested the cables with a volt meter. I've also tried with a different cartridge. Here's my config and M122 ; Heaters M308 S0 P"temp1" Y"thermistor" T118000 B3950 ; configure sensor 0 as thermistor on pin temp1 M950 H0 C"out1" T0 ; create bed heater output on out1 and map it to sensor 0 M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"temp0" Y"pt1000" ; configure sensor 1 as PT1000 on pin temp0 M950 H1 C"out2" T1 ; create nozzle heater output on out2 and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S350 ; set temperature limit for heater 1 to 350C ; Fans M950 F1 C"out9" Q400 ; create fan 1 on pin out9 and set its frequency M106 P1 S0 H1 T50 ; set fan 1 value. Thermostatic control is turned on M950 F2 C"out6" Q500 ; create fan 2 on pin out6 and set its frequency M106 P2 S0.5 H-1 ; set fan 2 value. Thermostatic control is turned off ; Tools M563 P0 S"DragonHF" D0 H1 F0 ; define tool 0 G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C M112 M122 === Diagnostics === RepRapFirmware for Duet 3 MB6HC version 3.4.1 (2022-06-01 21:09:01) running on Duet 3 MB6HC v1.01 or later (SBC mode) Board ID: 08DJM-9P63L-DJ3S0-7JKF0-3S86T-TAJR8 Used output buffers: 1 of 40 (12 max) === RTOS === Static ram: 151000 Dynamic ram: 64368 of which 24 recycled Never used RAM 135160, free system stack 156 words Tasks: SBC(ready,0.5%,476) HEAT(notifyWait,0.0%,318) Move(notifyWait,0.0%,267) CanReceiv(notifyWait,0.0%,944) CanSender(notifyWait,0.0%,356) CanClock(delaying,0.0%,333) TMC(notifyWait,7.7%,92) MAIN(running,91.4%,1231) IDLE(ready,0.3%,30), total 100.0% Owned mutexes: HTTP(MAIN) === Platform === Last reset 00:04:55 ago, cause: software Last software reset at 2022-06-20 00:17, reason: User, GCodes spinning, available RAM 135280, slot 2 Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00400000 BFAR 0x00000000 SP 0x00000000 Task SBC Freestk 0 n/a Error status: 0x00 Aux0 errors 0,0,0 Step timer max interval 134 MCU temperature: min 37.2, current 37.4, max 37.9 Supply voltage: min 23.9, current 24.0, max 24.0, under voltage events: 0, over voltage events: 0, power good: yes 12V rail voltage: min 12.2, current 12.2, max 12.3, under voltage events: 0 Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0 Events: 1 queued, 1 completed Driver 0: standstill, SG min 0, mspos 840, reads 11182, writes 19 timeouts 0 Driver 1: standstill, SG min 0, mspos 904, reads 11182, writes 19 timeouts 0 Driver 2: standstill, SG min 0, mspos 24, reads 11182, writes 19 timeouts 0 Driver 3: standstill, SG min 0, mspos 8, reads 11187, writes 14 timeouts 0 Driver 4: standstill, SG min 0, mspos 8, reads 11190, writes 11 timeouts 0 Driver 5: standstill, SG min 0, mspos 8, reads 11190, writes 11 timeouts 0 Date/time: 2022-06-20 00:22:05 Slowest loop: 37.38ms; fastest: 0.04ms === Storage === Free file entries: 10 SD card 0 not detected, interface speed: 37.5MBytes/sec SD card longest read time 0.0ms, write time 0.0ms, max retries 0 === Move === DMs created 125, segments created 5, maxWait 23082ms, bed compensation in use: none, comp offset 0.000 === MainDDARing === Scheduled moves 5, completed 5, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === AuxDDARing === Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0 === GCodes === Segments left: 0 Movement lock held by null HTTP* is doing "M122" in state(s) 0 Telnet is idle in state(s) 0 File is idle in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger* is idle in state(s) 0 Queue is idle in state(s) 0 LCD is idle in state(s) 0 SBC is idle in state(s) 0 Daemon is idle in state(s) 0 Aux2 is idle in state(s) 0 Autopause is idle in state(s) 0 Code queue is empty === CAN === Messages queued 2639, received 0, lost 0, boc 0 Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 50 (min 50), ts 1477/0/0 Tx timeouts 0,0,1476,0,0,1161 last cancelled message type 30 dest 127 === SBC interface === Transfer state: 5, failed transfers: 0, checksum errors: 0 RX/TX seq numbers: 12038/12038 SPI underruns 0, overruns 0 State: 5, disconnects: 0, timeouts: 0 total, 0 by SBC, IAP RAM available 0x2b880 Buffer RX/TX: 0/0-0, open files: 0 === Duet Control Server === Duet Control Server v3.4.1 Code buffer space: 4096 Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 0 Full transfers per second: 41.00, max time between full transfers: 241.3ms, max pin wait times: 76.3ms/18.8ms Codes per second: 0.25 Maximum length of RX/TX data transfers: 3080/992 Whenever I try to heat it, I just get: Error: Heater 1 fault: temperature rising too slowly: expected 2.32°C/sec measured 0.00°C/sec

@fcwilt Did that now and discovered the issue. Yet another poor crimp by me. It threw me off since it worked the first time I tested it. Now the heater works

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Hotend temperature not rising at all

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fcwilt @Velvia
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@velvia said in Hotend temperature not rising at all:

@fcwilt Thank you for all the help!

Any time.

Frederick
Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6
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