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Mend Security Systems, Home Alarm Systems

Tamper lockout will not reset?

My Accenta/Optima alarm went off at random, after reseting it tamper lockout is now showing on the face plate ... [Read more]
Mend alarm going years ago
3

Accenta / Optima burglar alarm keeps going off when we set it. Help!?

3 years ago we had a honeywell accenta / optima alarm installed. in the last 2 weeks when we have tried to se... [Read more]
Mend alarm keypad 8ep416
1

Is the 8EP417A LCD RKP ok to use with my Accenta6?

I have an Accenta6 alarm that needs a new RKP. The one now is an LED keypad 8EP416 I believe. Can I replace it... [Read more]
Mend temperature wont down

temperature won't go down?

Hi my rf2 is permanatley on 24, when i try to lower it with the arrows it goes to some random numbers like 6.9... [Read more]
Mend working time started
1

Radiators not all working all the time???

We have a problem with our heating, we think it started after we bled some radiators and took one off to wash ... [Read more]
Mend error alarm set
1

chime programmed in error?

My Accenta alarm has been set in error to chime when passing zones. I would like to know how to deactivate thi... [Read more]
Mend combi boiler running help

my combi boiler is oil fired and it is running to often and is also short c?

Please help! Our boiler runs to frequently and short cycles, etc.we have a burhnam boiler (r6-110) with a beck... [Read more]
Mend accenta g3 set
2

Faulty home alarm Accenta G3?

My accenta G3 home alarm goes off ( activates) intermitantly when NOT set. Fault code just shows tamper alert... [Read more]
Mend stopped working moving
1

Oil-filled radiator fell over, stopped working?

Hi. I was moving some furniture in my bedroom and knocked over my Honeywell Oil-filled radiator. It now will n... [Read more]
Mend g3 alarm day

how can I fix my sl8 g3 alarm ?

I had a power cut and since then 2 of the 3 remote panels will not operate, there is not mains power or day li... [Read more]
Mend power operate day

how can I fix my sl8 g3 alarm ?

I had a power cut and since then 2 of the 3 remote panels will not operate, there is not mains power or day li... [Read more]
Mend box working fine
1

How can i marry my honeywell CM921 the the BDR91 relay box?

we have a Honeywell CM921 thermostat and a BDR91 relay box, for the past two years was working fine. However r... [Read more]
Mend heating pcb fitted

Ferrloi 25c no Heating after new PCB fitted?

Initial fault of F26 caused by frozen condensate pipe. F 26 couldn't be cleared so the PCB had to be changed. ... [Read more]
Mend honeywell controls boiler

F24 code on Honeywell Smartfit?

I have a code saying F24 on my Honeywell Smarfit, which is on the wall and controls the setting, timings for t... [Read more]
Mend change key pad
4

How to change the code on the key pad?

I have a 9827 control pad, I would like to change the key pad number because the old number on the pads which ... [Read more]
Mend thermostat programmer switching

I have a Honeywell CF wall mounted programmable thermostat thats gone rouge?

My programmer seems to have a mind of its own. It is switching the heating on much earlier than the programmed... [Read more]
Mend heating hot water
1

No heating and no hot water?

Hi.there. I have very odl Halstead Quattro Gold 47 333 04. It doesnt work. When I pressed restart button, sp... [Read more]
Mend pressure ace heating
1

high pressure on halsetad ace he 24?

do any of you men out there know how i can fix this? with the cold weather i have had heating on lots and have... [Read more]
Mend gas valve leak
1

Do I have a gas valve leak?

Replaced a Peerless MMW60 Honeywell gas control valve which ran for 23 years OK but diagnosed with an external... [Read more]
Mend lost work number
3

I need a user manual for a 9427 please?

I have lost my user manual and I changed the code but it didn't seem to work and now its showing the number 9 ... [Read more]

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