How to mend Boiler Optimax He31c

My Optima XM won't accept security codes- day and power buttons light up?

Optima XM Alarm panel dead?

How can I fix my optima 2 alarm?

I have optima optima xm alarm plus panic alarm unit operated by red plastic?

Optima plus 2 small keypad?

optima xm 4 zone?

optima 2 plus failure?

replacement alarm ?

Optima 2 plus, Reset alarm code when current code not known?

How do I prevent my Optima Plus alarm system going off!?

Disconnecting an Optima XM system?

Optima alarm atuck on attack?

Help! Optima reset?

Few alarm problems?

No green light in optima XM burglar alarm?

Unable to set Optima alarm?

How do I reset optima xm alarm, showing. Attack?

Optima xl6?

Have an opima plus 2 alarm, which we inherited with the house. Had a power ?

How do i increase the keyboard sounds and exit entry sounds?

What does the Optima 2 plus control panel FUSE look like?

Can anyone help?

optima xm6?

How do a stop my optima alarm system from constantly chiming ?

I want to replace my optima panel 8EP396A?

blue light flashing?

Optima 2 plus house alarm?

how to change battery?

spare part?

How can I reset my optima compact alarm?