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Old 07-12-2018, 07:28 AM   #1
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Chirping noise coming from bedroom ceiling

Hope someone can help me on this. Just got our Alpine Coach back from being serviced yesterday and there is a chirping sound coming from the bedroom ceiling where I believe it is the smoke/carbon monoxide detector?!? How would I check this to see if there is a battery that needs replaced. This is our third Summer with this Coach but have only been able to use it sparingly. I assume that this is hard wired with a battery backup? Not sure. Any help is appreciated.

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Old 07-12-2018, 07:31 AM   #2
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Check for a small plastic 'pin' stuck into the side of the smoke detector though the ceiling mount.
The pin runs parallel to the ceiling. All you can see when it's installed is just the nub at the end, maybe 1/4 round. That pulls straight out and then you can remove the detector from the mount - no tools required.

2013 Winnebago Sightseer 36V
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Old 07-12-2018, 08:43 AM   #3
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Location: Alaska
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Chirp means it is time for a new battery. Alpine smoke detectors are a type residential unit. Nothing special.
Tim & Ruth
Alpine Coach 1999 40FDS, 350 ISC
Project Restoration
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Old 07-12-2018, 01:18 PM   #4
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...propane and co2 detectors are hard wired to chassis bats; smoke detector[s] is not so need to check the bat--usually 9v. Hard-wired detectors have a useful life of something like 5-6 years before replacement. Don't know if they chirp when they are about to fail???? Also, it would help us help you if you included the year and model of your Alpine in yr posts or as part of your sig block......safe travels
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2003 40' MDTS
Garden Ridge, Texas
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Old 07-12-2018, 03:38 PM   #5
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Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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Old 07-12-2018, 09:45 PM   #6
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Chirping noise coming from bedroom ceiling


Please add the coach year and model, length (it looks like you have a 36’, which actually measures 36’ 11”) to your profile and include that info in your postings. As AK1 stated, WRV used standard residential smoke detectors that chirps when the battery is low, so all you need to do is replace the 9V battery in BOTH detectors. You might also consider replacing them with the newer smoke/CO detectors, they usually have 10 year batteries. If you stay with the original detectors (there are normally 2, one in the bedroom and one above the driver’s seat) you should replace the batteries annually. These batteries take a lot more abuse than if it was in your home (the temperatures in your coach can go really high in the summer) so they should be replaced each year.
Dave, Bobbi and Fenway
2005 38' FDTS Alpine Limited, 2016 Jeep Grand Cherokee Limited
Cape Cod, MA
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Old 07-12-2018, 10:04 PM   #7
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If I have had my coach in storage with the battery switch off for a while, the Safe-T-Alert carbon monoxide detector will chirp when I first turn the switch back on. But after I have had the power on for a while (an hour or so), it stops. But it is on the cabinet wall, not the ceiling.

If that is what you have making the chirp, those are not fixable. Just replaceable. Two screws hold it on, and then 12 volt wiring behind it. Do a Google search for MTI 65-541-WT. It has a 5 year life, then needs to be replaced.

Jim A
'04 Alpine Coach 36' MDDS
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