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-   -   burn marks on side of coach (https://www.irv2.com/forums/f258/burn-marks-on-side-of-coach-6961.html)

chuckdoyle 01-31-2005 09:06 AM

We own a 2004 Alfa SeeYa, on the last few outings I've noticed burn marks right above the waterheater vent. I had previously wiped them off but now they are very hard to get off. seem to be burning in. I observed that the water heater is very hot and loud at this area, when I opened the outer swing down door I noticed that the loud noise went away. I then removed the small restrictive plate that was inside there, and for 2 days the marks didn't seem to get any worse. does anyone know why this vent is so restrictive? am I doing harm without this plate being there? can I cut out some of the material? or does it have to be there for back pressure or something? Also the CO2 alarm went off inside a few times before I removed this plate. didn't go off after I removed it. Strange?
Chuck

chuckdoyle 01-31-2005 09:06 AM

We own a 2004 Alfa SeeYa, on the last few outings I've noticed burn marks right above the waterheater vent. I had previously wiped them off but now they are very hard to get off. seem to be burning in. I observed that the water heater is very hot and loud at this area, when I opened the outer swing down door I noticed that the loud noise went away. I then removed the small restrictive plate that was inside there, and for 2 days the marks didn't seem to get any worse. does anyone know why this vent is so restrictive? am I doing harm without this plate being there? can I cut out some of the material? or does it have to be there for back pressure or something? Also the CO2 alarm went off inside a few times before I removed this plate. didn't go off after I removed it. Strange?
Chuck

TXiceman 01-31-2005 09:51 AM

It sounds like you do not have the air/fuel mixture set right. You should be able to adjust the shuut and get the flame to burning clean, provided you have a clean burner tube. I'm not sure of the brand of water heater you have, but the you should have a manual on the heater. It should describe how to adjust the burner. You want a nice blue flame with just a ting of yellow in the tips. It should be making a nice steady roar when burning.

If you do not field comfortable making the adjustment, any compitent RV dealer should be able to do this for you. They may need to check your propane pressure regulator if they have trouble adjusting it.

The black is just soot from a incomplete burn. It will eventually sstain the side of the coach. Simple Green does a god job of cutting this.

Ken

DriVer 01-31-2005 04:36 PM

This isn't unique to Alfa by the way. Since I've been traveling, we've seen a few brand new RVs both motorized and towable that displayed a sooty deposit above the heater compartment. I believe this is caused my an air/fuel mixture that's too rich. https://irv2.infopop.cc/groupee_commo.../icon_wink.gif

A simple adjustment should fix this problem rather quickly.

billmo99 02-01-2005 10:13 AM

I had the same thing, and found that the burn tube was full of Lady Bugs!!!!

Bushman512003 02-02-2005 06:20 AM

After You clean the burner tube or reset air to gas(propane) go to a window or hardware store buy a piece of metal window screen and install on the heater door vents.Keeps out the bugs no more problems with the heater.Been there....John

RUFINIT 02-08-2005 02:22 PM

Chuck, I would assume your coach is under warranty. Why not have it checked out, and adjusted professionally, so there will be no damage, or worse yet a fire.

Just a thought.


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