Disclaimer : This fault finding tool is provided for general advice only. It does not guarantee to correctly identify the cause of any particular fault, it is merely intended to give an indication of the likely causes and give general advice accordingly. We will not accept liability for any claim arising from the misuse or misinterpretation of this advice. We do not advice anyone to undertake repairs who is not competent and experienced in this field, and where we suggest causes of faults that only an engineer should attend, this is clearly identified. Only attempt a repair to your fire alarm if you are competent, insured, certified and experienced in this field.