replacing the propane detector

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replacing the propane detector

October 25, 2023, 10:10:01 am

My propane detector is 5 years old and has started making it's incredibly obnoxious noise every 72 hours. I bought a new detector on Amazon (Amazon.com: MTI Industries 40442PBR 12V Propane/Gas Detector, Brown : Tools...)
Here's my question- has anyone replaced this detector without disconnecting the batteries? I've replaced my batteries with AGM's, and the cabling is SO tight on the batteries that it's nearly impossible to disconnect them. I'm thinking as long as I don't let the positive and ground wires of the detector wiring touch each other, I'll be ok. Thoughts?
There isn't a factory disconnect switch for the batteries, right? I have a 2003 26.5 MB
Thanks!!

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Re: replacing the propane detector

Reply #1 – October 25, 2023, 10:17:35 am

Pull the fuse in the panel under the flip-up counter extension. On my 2003, it was originally a 7.5amp fuse in spot 8. That changed when I upgraded the convertor.

The factory offered a battery cut-off as an option. If you have it, it will be a red T-handle located between the 2 batteries.

Rich

Re: replacing the propane detector

Reply #2 – October 25, 2023, 10:23:49 am

Thanks, Rich!!

Re: replacing the propane detector

Reply #3 – October 25, 2023, 11:32:52 am

Hi Laura; Not to worry. it's just low power 12v dc. There is a fuse inline with the power wire, just inches from the detector. Easily accessible when you pull out the old detector. Your 2003 detector should have been changed out quite a few times by now. You can remove that fuse while doing the exchange with the new one. No need to remove any other fuses. I've found (sadly) many people just remove that fuse (at the detector) and never get around 'tuit' replacing the detector. I cut the wires off close to the old detector and use wire nuts to connect the new one to those 'stubs'. You'll be in there again in 5 more years anyway. RonB

Re: replacing the propane detector

Reply #4 – October 25, 2023, 04:49:37 pm

Laura, one other thing I have learned to do before working on electrical stuff is to pull the fuse for the solar system. I do have the battery disconnect switch but the solar system was still feeding power to the DC system.

Steve K

Re: replacing the propane detector

Reply #5 – October 26, 2023, 02:25:05 am

If you pull the fuse to disconnect the detector from 12v dc, there is no need to turn anything else off. I've changed many and not turned off anything. RonB

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