Anet A8 Fan Issue

Phaedrux

M112

M112 is emergency stop. M122 is diagnostic info.

MdMx220

@Phaedrux
Apologies, trying to get moved into a new place.

	m122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.1 running on Duet WiFi 1.02 or later
Board ID: 08DJM-9178L-L2MS8-6JKDA-3SS6K-K8D2Q
Used output buffers: 12 of 24 (12 max)
=== RTOS ===
Static ram: 27980
Dynamic ram: 93888 of which 44 recycled
Exception stack ram used: 264
Never used ram: 8896
Tasks: NETWORK(ready,384) HEAT(blocked,1224) MAIN(running,1848) IDLE(ready,80)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:00:18 ago, cause: power up
Last software reset at 2021-01-04 17:24, reason: User, spinning module GCodes, available RAM 8688 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task MAIN
Error status: 0
MCU temperature: min 17.1, current 20.7, max 20.8
Supply voltage: min 23.9, current 24.1, max 24.2, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2021-01-04 17:49:09
Cache data hit count 29805571
Slowest loop: 4.73ms; fastest: 0.12ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 3.2ms, write time 0.0ms, max retries 0
=== Move ===
Hiccups: 0(0), FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: -1
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle 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
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 15.70ms; fastest: 0.00ms
Responder states: HTTP(2) HTTP(2) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8
- WiFi -
Network state is active
WiFi module is connected to access point 
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.23
WiFi MAC address ec:fa:bc:5b:42:63
WiFi Vcc 3.39, reset reason Unknown
WiFi flash size 4194304, free heap 21272
WiFi IP address 192.168.1.64
WiFi signal strength -62dBm, reconnections 0, sleep mode modem
Socket states: 2 2 0 0 0 0 0 0

Phaedrux

Which fan is connected where?

MdMx220

@Phaedrux
Extruder fan is always on

Parts cooling fan is F1

Phaedrux

M950 F0 C"fan0" Q500                                        ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1                                              ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                                        ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45                                           ; set fan 1 value. Thermostatic control is turned on
;;;;;;;;;;;;;; TOOLS ;;;;;;;;;;;;;;;;;;
M563 P0 D0 H1                                             ; define tool 0

You should use Fan0 for the part cooling fan and Fan1 for the hotend heatsink if possible. That would match your config and the default fan usage.

If that's not possible, you'd need to change your fan config up.

MdMx220

@Phaedrux
Wouldn't one fan or the other turn on, with the way the config is setup now?

MdMx220

@Phaedrux

Do I need to create the pin numbers using M574? I'm doubting this question, but it's a long shot for me right now.

Phaedrux

I would expect the always on fan ports to work. Are you sure the fan fuse is intact? Did you check it with a multimeter?

Your part cooling fan would only turn on when the heater reaches 45c.

@MdMx220 said in Anet A8 Fan Issue:

Do I need to create the pin numbers using M574?

No.

MdMx220

The fuse was checked with multimeter, It's not blown.

I am reading 7.6V across the fan pins. With an external 5V from a buck.

I probed my V_FAN pin, verified 12V from PS.

Phaedrux

And you checked the fan fuse and not the vin fuse?

What do you mean by external 5v from a buck?

Veti

@MdMx220 said in Anet A8 Fan Issue:

I am reading 7.6V across the fan pins. With an external 5V from a buck.
I probed my V_FAN pin, verified 12V from PS.

a buck converter is a step down converter. you can use 5v on a buck converter to output 12v