@diy-o-sphere @Phaedrux you were correct. Bent Pin. The simple things :). All is good now. Thank you both. Now off to do some printing.

@phaedrux said in Ender 3 Maestro BlTouch not homing:

M98 P"config.g"

As soon as I turn on the printer the BLtouch immediately starts the fast flashing (LED). The BLtouch never drops and retracts the PIN for self test.

--M98 P"config.g"---
M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Error: bad model parameters

Thanks again.

@phaedrux Thank you for the quick response.
M401 and M402 do nothing.
The BL touch flashes red (the whole body).
--M122--
M122
=== Diagnostics ===
RepRapFirmware for Duet 2 Maestro version 3.2 running on Duet Maestro 1.0
Board ID: 08DJM-956GU-P23TJ-6J9D0-3SD6P-9B0YU
Used output buffers: 3 of 24 (11 max)
=== RTOS ===
Static ram: 22292
Dynamic ram: 73032 of which 76 recycled
Never used RAM 19432, free system stack 162 words
Tasks: NETWORK(ready,206) HEAT(blocked,340) TMC(blocked,117) MAIN(running,477) IDLE(ready,20)
Owned mutexes:
=== Platform ===
Last reset 00:03:13 ago, cause: power up
Last software reset at 2021-04-25 21:11, reason: User, GCodes spinning, available RAM 19676, slot 0
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00000000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
MCU temperature: min 30.7, current 39.1, max 39.5
Supply voltage: min 0.0, current 23.8, max 23.9, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: position 1200, standstill, read errors 0, write errors 0, ifcnt 11, reads 32204, writes 11, timeouts 0, DMA errors 0
Driver 1: position 4800, standstill, read errors 0, write errors 0, ifcnt 11, reads 32204, writes 11, timeouts 0, DMA errors 0
Driver 2: position 2000, standstill, read errors 0, write errors 0, ifcnt 11, reads 32204, writes 11, timeouts 0, DMA errors 0
Driver 3: position 0, standstill, read errors 0, write errors 0, ifcnt 8, reads 32207, writes 8, timeouts 0, DMA errors 0
Driver 4: position 0, standstill, read errors 0, write errors 0, ifcnt 6, reads 32209, writes 6, timeouts 0, DMA errors 0
Driver 5: position 0, assumed not present
Driver 6: position 0, assumed not present
Date/time: 2021-04-29 17:08:28
Slowest loop: 21.79ms; fastest: 0.15ms
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: 15.0MBytes/sec
SD card longest read time 9.9ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, maxWait 91255ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 12, completed moves 12, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = 0 -1, chamberHeaters = -1 -1
=== 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
LCD 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: 10.75ms; fastest: 0.02ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8
Interface state active, link 100Mbps full duplex

--M98 P"config.g--
M98 P"config.g
Error: M98: control character in string

--M98 P config.g---
M98 P config.g
Warning: Macro file config.g not found

--homeall.g--
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sun Apr 11 2021 16:56:44 GMT-0700 (Pacific Daylight Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-240 Y-240 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-240 Y-240 F240 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X15 Y60 F6000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Hi, this is my first post to a forum ever, so apologies in advance.
I upgraded my duet 2 maestro to rrf 3 (RepRapFirmware for Duet 2 Maestro 3.2 (2021-01-05).

Now when I try and home Z, I get the following error. "G28Z Error:Z Probe already triggered at start of probing move" Homing Failed.

I am including my config. I worked quite a bit, and tried several things, so I apologize that the config has a bunch commented out (other tries). I am also including my deploy and retract. Thanks in advance.

--config--
; Configuration file for Duet Maestro (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sun Apr 11 2021 16:56:43 GMT-0700 (Pacific Daylight Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Ender" ; set printer name
M918 P1 E4 F2000000 ; configure direct-connect display

; Network
M552 P192.168.0.13 S1 ; enable network and set IP address
M553 P255.255.255.0 ; set netmask
M554 P192.168.0.1 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S0 ; physical drive 0 goes backwards
M569 P1 S0 ; physical drive 1 goes backwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S0 ; physical drive 3 goes backwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E93.00 ; set steps per mm
M566 X1200.00 Y1200.00 Z24.00 E300.00 ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 E5000.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E1000 I50 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X235 Y235 Z260 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
M574 Z1 S2 ; configure Z-probe endstop for low end on Z

; Z-Probe
M950 S0 C"^zprobe.mod" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y-45 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X15:215 Y15:195 S20 ; define mesh grid

; Heaters
;M307 H7 A-1 C-1 D-1 ; (FOR BLTOUCH)Disable the 7th Heater to free up PWM channel 5 on the Duex board.
M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
;M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M307 H0 A2.429 C140 D5.5 V0 B0 ;Heater 0 model: heating rate 2.429, cooling time constant 140.0, dead time 5.50, max PWM 1.00, calibration voltage 0.0, mode bang-bang
M140 H0 ; map heated bed to heater 0
M143 H0 S150 ; set temperature limit for heater 0 to 150C
M308 S1 P"e0temp" Y"thermistor" T100000 B4092 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
;M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M307 H1 R2.781 C145.9:145.5 D4.10 S1.00 V23.5
M143 H1 S275 ; set temperature limit for heater 1 to 275C

; Fans
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
M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency
M106 P2 S1 H1:0 T45 ; set fan 2 value. Thermostatic control is turned on

; Tools
M563 P0 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

; Custom settings are not defined

; Miscellaneous
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

--deploy--
; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sun Apr 11 2021 16:56:43 GMT-0700 (Pacific Daylight Time)
M280 P0 S10 ; deploy BLTouch

--retract--
; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sun Apr 11 2021 16:56:43 GMT-0700 (Pacific Daylight Time)
M280 P0 S90 ; retract BLTouch