Panel recently locked out (with a zone fault and PA red light although I don't have a PA installed).

I cleared it by powering down and powering up again. All is well except that the strobes on both bell boxes no longer work either in alarm condition or when tested.

I have checked fuses and all seem OK - any ideas anyone please.

Panel recently locked out (with a zone fault and PA red light although I don't have a PA installed).

I cleared it by powering down and powering up again. All is well except that the strobes on both bell boxes no longer work either in alarm condition or when tested.

I have checked fuses and all seem OK - any ideas anyone please.

Have you tested the output for the strobe with a multimeter to see it changed state i.e +12vdc going 0vdc or vice a versa??

Panel recently locked out (with a zone fault and PA red light although I don't have a PA installed).

I cleared it by powering down and powering up again. All is well except that the strobes on both bell boxes no longer work either in alarm condition or when tested.

I have checked fuses and all seem OK - any ideas anyone please.

1. have you checked the voltage from the output
   
2. have you checked the current from the output?
   
3. try applying 12 Vdc directly to the strobes.
   

Just a word of warning - the strobe in the bell-box can hold a high charge through the capacitor. Avoid touching any components around the strobe in the bell box itself. As per the advice above, connect the wires in the Strobe+ and Strobe - terminals directly to a 12V source to test the strobes themselves.

D7