Honeywell Optima G4 Problem (cut sensor wire)

22 Jul 2019
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United Kingdom
I have a Honeywell Optima G4. I accidentally cut the wire that leads to the front door sensor (zone 1) during re-decorating the porch. I have re-attached the wire using a choc box however this has not fixed the problem. Strangely, the alarm did not activate when I initially cut the wire.

When I now try and set the alarm the LED lights under zones 3 and 4 light up when attempting to set the alarm (I have 4 zones) The alarm also beeps fast constantly and does not go silent.

Zone 3 used to be the French windows but is now not used and is permanently connected in the kitchen somewhere, zone 4 is the back garage door which is closed.

I have tried omitting zones 3 and 4 in the program menu, when I do and attempt to set the alarm the beeps sound slower but still do not stop even after closing the front door.

Do I need to factory reset the system or is this something that only an engineer can solve?
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Yes, zone 2 has PIR sensors in 3 rooms. I did a walk test and zone 2 LED lit up when I activated one of the sensors, I did not try the other 2 though.

Zone 1 is front door and garage but the LED light did not light up when I did a walk test and opened each door.
Possible blown fuse in control panel?
Need to check 20mm glass 1amp aux power fuse
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If it is the fuse, is it possible to access the control panel without triggering a tamper alarm?

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