@jay_s_uk , @Phaedrux and @chrishamm thank you so much for all the suggestions and help. Phaedrux, it turned out that I actually was not using reprap firmware 3 but instead had been using 2.03, I must have not completed the update on the firmware. It all works now which i'm very happy about. Thank you all for your time and help.

@jay_s_uk , @Phaedrux and @chrishamm thank you so much for all the suggestions and help. Phaedrux, it turned out that I actually was not using reprap firmware 3 but instead had been using 2.03, I must have not completed the update on the firmware. It all works now which i'm very happy about. Thank you all for your time and help.

@jay_s_uk Sorry for the late reply, it reads 1.034K ohms.
Is this a good value or is there something wrong with the board?

@chrishamm Thanks, I have now corrected the C value error and the tool error but the temp is still currently displaying 2000 degrees.

I have attached the updated config file.

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.0 on Thu Aug 05 2021 17:35:12 GMT+0100 (British Summer Time)

; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"My Printer" ; set printer name
M665 R137.2 L304 B125 H244.50 ; Set delta radius, diagonal rod length, printable radius and homed height
M666 X0 Y0 Z0 ; put your endstop adjustments here, or let auto calibration find them

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X160.00 Y160.00 Z160.00 E663.00 ; set steps per mm
M566 X1200.00 Y1200.00 Z1200.00 E1200.00 ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E1200.00 ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z1000.00 E1000.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E800 I50 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 Z0 S1 ; set minimum Z

; Endstops
M574 X2 S1 P"xstop" ; configure active-high endstop for high end on X via pin xstop
M574 Y2 S1 P"ystop" ; configure active-high endstop for high end on Y via pin ystop
M574 Z2 S1 P"zstop" ; configure active-high endstop for high end on Z via pin zstop

; Z-Probe
M558 P8 R-0.1 C"zprobe.in+zprobe.mod" F1200 H5 T6000 ; set Z probe type to effector and the dive height + speeds
G31 P100 X0 Y0 Z-0.1 ; set Z probe trigger value, offset and trigger height
M557 R100 S20 ; define mesh grid

; Heaters
M140 H-1 ; disable heated bed (overrides default heater mapping)
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8; sensor 1
M950 H1 C"e0heat" T1 ; create heater and map sensor 1
M143 H1 S270
M307 H1 B0 S1.00

; 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

; 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
T0 ; select first tool

@jay_s_uk Thanks, the heater has now showed up in the paneldue which is a step forwards, but temp is still showing 2000 degrees.

@jay_s_uk Here is my config file, I think ive assigned it to a tool but may have done it wrong.

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.0 on Thu Aug 05 2021 17:35:12 GMT+0100 (British Summer Time)

; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"My Printer" ; set printer name
M665 R137.2 L304 B125 H244.50 ; Set delta radius, diagonal rod length, printable radius and homed height
M666 X0 Y0 Z0 ; put your endstop adjustments here, or let auto calibration find them

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X160.00 Y160.00 Z160.00 E663.00 ; set steps per mm
M566 X1200.00 Y1200.00 Z1200.00 E1200.00 ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E1200.00 ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z1000.00 E1000.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 E800 I50 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 Z0 S1 ; set minimum Z

; Endstops
M574 X2 S1 P"xstop" ; configure active-high endstop for high end on X via pin xstop
M574 Y2 S1 P"ystop" ; configure active-high endstop for high end on Y via pin ystop
M574 Z2 S1 P"zstop" ; configure active-high endstop for high end on Z via pin zstop

; Z-Probe
M558 P8 R-0.1 C"zprobe.in+zprobe.mod" F1200 H5 T6000 ; set Z probe type to effector and the dive height + speeds
G31 P100 X0 Y0 Z-0.1 ; set Z probe trigger value, offset and trigger height
M557 R100 S20 ; define mesh grid

; Heaters
M140 H-1 ; disable heated bed (overrides default heater mapping)
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C 7.06e-8; sensor 1
M950 H1 C"e0heat" T1 ; create heater and map sensor 1
M143 H1 S270
M307 H1 B0 S1.00

; 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

; Tools
M563 P0 D0 H0 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
T0 ; select first tool

@chrishamm I am using reprap firmware version 3 and duet web control version 3.3.0

@matt7-0 Forgot to mention but I am not using a heated bed which further confused me about why my paneldue is still showing options for the heated bed but none for my hotend.

On the duet web control my hotend temperature is displayed to be 2000 degrees Celsius and no hotend temperature options are displayed on my panel due at all. I am using a duet 2 WIFI and my printer is a custom delta build. I have tested with another thermistor and it displayed the same result of 2000 degrees, I also checked all of my wiring and it was all correct and properly connected. Please could you help me find out what I've done wrong.
Attached are my pictures from the DWC and my paneldue as well as where my thermistor is plugged in and lastly, the heater part of my config.g file.