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You are here: Experts > Parenting/Family > Protecting your Home and Family > Security & Fire Protection Systems > DSC PC2550, False alarm
Expert: Dave Neuweiler - 11/1/2009
Question
QUESTION: I've had my system for 12yrs and have had no problems until lately. The problem that I am having is that the fire alarm keeps triggering the alarm. It goes off at all times during the day as well as night time. I tried replacing the stand by battery, but the problem remains. My system has not been monitored by any company for the last 5yrs. Can you please help?
ANSWER: Hello Manny, and thanks for writing.
You didn't mention what kind of fire protection you have, but it's most likely smoke detectors. If so, their age and likely lack of periodic cleaning is the cause of your false alarms.
Smoke detectors should be cleaned annually, and they have a useful life of about ten years. You should probably just replace them.
Now these detectors aren't the same as the ones you see at home improvement stores. If you can take one down and get the make and model number for me, I can help you locate replacements online.
Best regards,
Dave
---------- FOLLOW-UP ----------
QUESTION: Thank you for your quick response.
The smoke detector is an ESL Model 445C 4 wire detector.
I've never cleaned the detector, so I blew out the dust with a can of Dust Off aerosol and then reset the alarm system. It seems to have corrected my problem.
I would still like to know where I can purchase the smoke detector in case this happens again.
Thank you Dave.
Answer
Thanks, Manny.
Here's a link to one (of many) compatible smoke detectors:
http://www.alarmsystemstore.com/DSC-FSA-410B-4-wire-Photoelectric-Smoke-Detector...
And here's the installation manual, in case you want to see what's involved:
http://www.intek.co.nz/product4.aspx?ProductID=3877
There are many online sources; a Google search for "DIY 4 wire smoke detector" will turn some up.
In terms of compatibility, brand isn't important. It's the operating voltage, current draw, and connections.
Your control is 12 volt, so look at the voltage range for the detector (i.e. 8.5 to 33 volts).
With only one detector, you won't need to worry about current draw.
The 4-wire style has two wires for power, and two wires for the alarm circuit.
Best of luck, and if you have follow-up questions, just drop me a line.
Regards,
Dave
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