I installed a scantronic 500r about 7 years ago .yhats the only one ive ever fitted . the customer has come back after the e/e zone went faulty I.E he broke it. i took anothee 535r that i had left over and deleted the existing zones one to reinstate the new one . when i go into programming zone 1 with code 81 and selecting the zone i get no double beep when i activate the tamper. any ideas??

Did you delete the old one properly?

Remember the radio frequency has changed since 7 years ago so is the 535 new or old frequency.?

You could try adding it to an unused zone.

Did you delete the old one properly?

Remember the radio frequency has changed since 7 years ago so is the 535 new or old frequency.?

You could try adding it to an unused zone.

I put in the code 82 thenpressed the zone i wanted to deleted (zone 1) the the led went out on the board. then tried code 81 the re-instate the zones and nothing happend??

I put in the code 82 thenpressed the zone i wanted to deleted (zone 1) the the led went out on the board. then tried code 81 the re-instate the zones and nothing happend??

And yes the 535 is the one i bought with the panel ..found it in a box from that time