Noisy furnace February 11, 2024, 08:05:26 pm Hi. We've got an annoying squeel coming from the furnace in our 1999 LD 30' mid-bath. The blower works and heat is coming out. Then the sound just stopped. Where is the furnace motor so we can possibly service the blower and fan?The rig is going in to the dealer for repair or replacement of the black tank next week. Any other guidance is appreciated! Thanks.
Re: Noisy furnace Reply #1 – February 12, 2024, 02:52:18 am The furnace needs to be pulled for service. That is accomplished by pulling off the front vent panel, turning off the adjacent gas valve, removing the attaching screws, disconnecting the gas line, and pulling the unit out until you can remove the electrical connector. Once the unit is out, the squeaking is because the lubricant in the motor bushings has dried out and needs to be dissolved and replaced.Steve 3 Likes
Re: Noisy furnace Reply #2 – February 12, 2024, 03:30:47 am Hi Steve; With the LiF batteries I'm putting more hours on my heater fan motor bearings. No squealing yet, but I have wondered how long I can go without doing anything for the bearings. Is this really something that will last a few years? RonB
Re: Noisy furnace Reply #3 – February 12, 2024, 05:42:04 am My 2000 30IB had a terrible squealing from the furnace especially when it was initially turned on. I don't have access to the furnace model number anymore but if yours is the same model... This is the part numbers for the blower motor and wheel the tech replaced for me. For reference - It took the tech 4.5 hours of labor to do the job. Blower Wheel: Suburban Mfg 41-1278 Blower Motor: M.C. Enterprises 42-0001Hope this helps. 1 Likes
Re: Noisy furnace Reply #4 – February 12, 2024, 12:07:15 pm Some Suburban furnaces are accessed from an outside hatch while most are accessed from the inside. Depending on the motor's bearing wear, the fan motor may need replacement or oiling.For lubing small electrical motors this oiler comes in handy, it has a long, pull-out spout for getting to hard-to-reach spotsAmazon.com: Universal Sewing Machine Oil in Zoom Spout Oiler – Lily White...Larry 1 Likes As an Amazon Associate Lazy Daze Owners' Group earns from qualifying purchases.
Re: Noisy furnace Reply #5 – February 12, 2024, 12:23:29 pm "... our 1999 LD 30' mid-bath."Forgive me MAMAFREE for picking nits! The proper description for any 30' LD is "30' IB (Island Bed) or 30' TB (Twin Bed). Any reference to a "Mid-Bath" is for a 27' LD only! That's an honest mistake, you're learning. 1 Likes
Re: Noisy furnace Reply #6 – February 12, 2024, 09:01:29 pm Quote from: RonB - February 12, 2024, 03:30:47 amHi Steve; With the LiF batteries I'm putting more hours on my heater fan motor bearings. No squealing yet, but I have wondered how long I can go without doing anything for the bearings. Is this really something that will last a few years? RonBNo issues yet with our '04, but had the issue with our '83. The brass sleeve bearings develop sort of a hard 'shellac' that gums things up. Eyedropping a little alcohol on the shaft and working it to dissolve the deposits, following with light machine oil worked for me.Steve 3 Likes
Re: Noisy furnace Reply #7 – February 18, 2024, 05:15:22 pm Hi all. Thank you so much for all the info and suggestions. We've decided to add this to needed work when we drop her off at the dealer this week (black tank leak repair or replacement, electical panel buzzing/arcing, fried end of 30 amp cord). Hopefully these repairs won't break our bank!
Re: Noisy furnace Reply #8 – February 19, 2024, 10:06:34 am Quoteblack tank leak repair or replacementJust curious. What happened to your black tank to cause the leak?jor 1 Likes
Re: Noisy furnace Reply #9 – February 19, 2024, 11:38:31 am Hi JOR; Anybody can look through anybody else's past posts, by clicking on that persons profile (picture), and going to 'show posts'. MamaFree may have had some freeze damage on the ABS tank. RonB 1 Likes
Re: Noisy furnace Reply #10 – February 19, 2024, 05:33:41 pm QuotexAnybody can look through anybody else's past postsThanks, Ron.jor
Re: Noisy furnace Reply #11 – March 04, 2024, 10:40:41 pm Hi jor. RonB is correct; a cold Montana winter probably caused a crack.
Re: Noisy furnace Reply #12 – March 04, 2024, 10:50:16 pm Does anyone know what amp we should ask the shop to install when replacing the coach converter in our 1999 30 IB? They say it is blown. The main reason we took it in was for the black tank leak...they cannot find the leak. It is either on the upper part of tank or it is between the toilet and tank. Hope they figure it out, as there is definitely a very stinky leak. Maybe they just don't want to work on it???
Re: Noisy furnace Reply #13 – March 05, 2024, 12:15:25 pm As an owner of a '99, losing ypur converter wasn't much of a loss!. Much better ones exist now. 3 years ago I got a Progressive Dynamics 4655VL. It has been good. I used it with regular lead acid batteries for 6 months before I converted to Lithium. The VL has a removable jumper to do the conversion. 55 Amp is good. I might go to 65 Amp now. Last I heard the 75 amp has a fan that runs all the time. That bothers some people. Your converter is out in the open. You don't need the remote pendant. Previous posts detail this change, and Best Converters seems ok to buy from. Your techs don't want to work on your leak, or don't know how. (IMO) RonB 1 Likes
Re: Noisy furnace Reply #14 – March 09, 2024, 06:29:11 pm Thanks RonB. We really pushed Bish's to find the leak. They filled up the black tank and no leakage. They say the leak is in the sink/piping above the black tank, and that isnt causing damage and leaving it should be fine. Or fix it for at least another $2,500. Does anyone have a schematic of the piping system? (Need to ask them if it is bath or kitchen sink)We may try to put some dye down the sink and capture in a pan, just to confirm the leak. Is there a liquid product we can pour in to seal cracks in the pipe? Like for radiators. Thanks, as always, for your help.
Re: Noisy furnace Reply #15 – March 10, 2024, 04:24:39 pm Hi MamaF; If your pipes were perfectly clean including the crack you might be able to seal it. Better to find the problem though. Try putting red dye (food coloring) in the fresh water, pump into a container to get the color up to the faucet and let it sit. If no color or leak shows up, then it isn't fresh water. The other drain pipes contain very little water, just at the traps. Only the toilet ends up in the black tank. Sinks and shower (gray water) ends up in the gray water tank. If the GW tank is full, motion could slosh water back into the pipes. Same for the black tank. Run red water into the hot water tank also. (don't let it into the drain system yet.) That filling the black tank doesn't reveal a leak, doesn't mean that a leak isn't in the piping leading to the tanks. Also the fresh water can leak at the entry fill where the elbow is connected and slosh around to leak and drip to the bottom and drip underneath. While you have red dye only in the FW tank, take a drive to see if you get 'red' leaks elsewhere. Then pour red water in the shower. Then sink, then other sink. etc.RonB 1 Likes
Re: Noisy furnace Reply #16 – March 10, 2024, 06:26:53 pm Hi RonB. The dye method would help us find the problem - although the tech said he found where it is coming from. I am feeling stuck (and broke) because I can't fathom it costing another $2,500 in labor alone unless they'd have to remove the black tank completely. I was hoping for a schematic, which might allow me to talk intelligently with the technician. Haha Leaving the leak as-is is only delaying a problem down the road. Sheesh, if only I were born rich instead of beautiful!(kidding) 1 Likes
Re: Noisy furnace Reply #17 – March 11, 2024, 01:16:03 am About the symptom listed above, 'stinky black tank smell' have you replaced the gasket at the base of the toilet? A '99 would need that about now. I replaced mine about 6 months ago. Sort of hard to find because it is the source of the problem, but might smell and not be easily detectable. Fill the black tank with red water from the fresh tank all the way up to toilet bowl. Take out the one screw holding the shroud cover on, so you can get a better look at possible leaks. Replacement isn't hard, about $20, unless there are other problems found. Sealand 510. Don't let anybody talk you into replacing it. Newer ones have a changed footprint and mounting flange issue. RonB 4 Likes
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Topic: Noisy furnace (Read 762 times)
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