Community Forums

Lakas · 11-29-2013, 02:20 PM

I started my 1998 Discovery this morning the air buzzer kept sounding and I observed the gauge was on 0 and not moving. I gave it a little gas and the next thing that happened was a small explosion. I shut it down went to the rear of the coach and behind the rear wheels was a filter looking item had blown apart. I am new to RVing

I have no idea the name of the item. Lucky it is sitting in the backyard and not on the side of the road.

Any information would be greatly appreciated.

Randy

Ron & Kerrie · 11-29-2013, 02:22 PM

It might be the water/ fuel separator filter?

mahon1993 · 11-29-2013, 02:28 PM

If you could a picture would really help.

dennis45 · 11-29-2013, 02:36 PM

If it was a Low Air Buzzer, I suspect what you heard and are seeing is a burst Air Dryer Filter. Are you in a cold climate? If so, it may have frozen and caused the filter to burst.
If that is in fact the case, it should not be a big deal to have a mechanic come out and replace it for you if you are not familiar with the process. While he's at it, ask him to explain how the system works and how to maintain it.

palehorse89 · 11-29-2013, 02:52 PM

Little white colored balls all over? sounds like the governor on your air dryer did not release the air pressure at the cut off point, it would of taken a lot of pressure to do this to that filter! You are going to want someone to check out your entire braking system if this is what happened. Your air compressor kept building air and did not shut off at approximately 125 psi and kept building air till the filter blew out. There must be a lot of moisture in your system if I had to guess.

greystroke · 11-29-2013, 03:06 PM

Agree, it probably the filter. Post a pix and we can help you with it.

dennis45 · 11-29-2013, 03:39 PM

Quote:

Originally Posted by palehorse89

Little white colored balls all over? sounds like the governor on your air dryer did not release the air pressure at the cut off point, it would of taken a lot of pressure to do this to that filter! You are going to want someone to check out your entire braking system if this is what happened. Your air compressor kept building air and did not shut off at approximately 125 psi and kept building air till the filter blew out. There must be a lot of moisture in your system if I had to guess.

I think you nailed it Palehorse......

You get the T Shirt.

Lakas · 11-29-2013, 09:54 PM

Thanks everyone! It did have little white balls inside. It not only blew the filter off, the top piece that the filter connects to is broken. It was very cold this morning @ 20 degrees.

Guess I will have to find the part and go from there.

Thank you all.

Randy

greystroke · 11-30-2013, 05:00 AM

Depending on your model, you may get kits right from your local NAPA dealer. I can get mine there.

H. Miller · 11-30-2013, 06:34 AM

It will be much cheaper from a truck facility than an RV place...

ImagineIF · 11-30-2013, 06:50 AM

Definately the air dryer that went bang. Now you have to figure outthe extent of damage. I too would say the fault was a result of ice in the line. Given your pressure gauge didn't come off zero, the damage should be limited to the air compressor to the dryer and with limited possibility, the wet tank. It sounds like the dryer's cutout valve did not work. This is the one that makes the air escaping sound. It also appears as though the air compressor doesn't have an overpressure relief valve. They don't all have them.

Gil

rkainsworth · 11-30-2013, 12:27 PM

I am having my air drier and filter replaced at a truck repair shop this week. Both are the originals in a 99 Freightliner chassis, and the drier was not working. I'm in Connecticut, so probably pay more than the rest of country, but total cost labor and parts is $703. Good luck.
Rich

R2Home · 11-30-2013, 01:40 PM

Air dryer filter need to ne replaced about every two years depending on how much you driver. If you are on the road all of the time it is not a bad idea to replace them yearly. It is better to replace the air dyer filter then to have the brake system go not when you most need it.

Lakas · 11-30-2013, 04:47 PM

When the filter part blew it flew into the floor along with several wires. I see a couple of connectors that look broke. The furnace was running when all this happened and now the furnace is blowing just cold air. Are any of the wring to the furnace in that area?

Thanks for all your help.

Randy