Pyronix bell box

[Reddibaggie]

Just fitted the pyronix delta plus bell box yesterday replacing an old unnamed box, wiring was quite simple, I just did away with the pos strobe wire and put the link wire from - to T.
Thing is, when wiring it, leds were flashing side to side at the bottom, then as soon as I shut the cover everything flashes constantly. And I have no backlight, just constant flashing. Is this what it’s supposed to do or am I missing something.

 

[Handymanjo]

Possible tamper fault.
Post photo of bell box wiring and control panel pcb bell wiring this will help with fault finding.

 

[sparkymarka]

Are you saying the strobe Is flashing ? What panel is it , and have you reset the panel ?