Webasto is shot

Jcparmley · January 25, 2021, 04:50:36 PM

Good point Jim. I will pull it out and open it up. What can go wrong, right?

Quote from: Jim Blackwood on January 25, 2021, 02:37:22 PM
Rocket surgery it ain't.

The Webasto and the Eiberspacher look a lot alike. I had a thread about it on here if you can find it. I did a lot of research then pulled the head off the can and checked out the chamber and the jet and fan on mine and it was all good. There really isn't that much to go wrong. You shouldn't be afraid of it, what's the worst that can happen, it gets disabled right? Like it is now. Not likely you are going to make it worse. You will at least learn some things.

As mine is now it is controlled by cabin temp but it's a work in progress and I don't know if engine operating temp will be an issue or not. But that's why I suggested the solenoid valve so you can send heat where it is needed, and not where it isn't. That applies to the control too obviously. My timer was bad so I needed something to turn it on and this was the cheapest easiest quick fix. Just one wire tells it on or off.

Jim

lostagain · January 25, 2021, 04:52:52 PM

A DBW 2010 is a 12 volt unit. 45 kw isn't a whole lot of heat either. I would try to fix what you have.

chessie4905 · January 25, 2021, 06:21:00 PM

The idea of a spare or two is if it quits, easy to install another one. Like your water pump. If you already have a good WORKING Webasto, then disregard.

buswarrior · January 25, 2021, 08:28:58 PM

The control module on one of these is worth more than $500.

As noted, grab that school unit for spare parts, potential use, or pass to another busnut, but see about getting the big gun in yours working again.

The positive thing about sorting the wonky coolant boilers on these coaches, you'll know exactly how it is supposed to work, once you get it all traced, researched, maintenance and testing caught up...

And not be afraid of the damn thing again.

Thrash it to the ground

Happy coaching!
Buswarrior

RichardEntrekin · January 31, 2021, 04:38:18 PM

I am with the crowd that says tear into the Webasto you have. You will find the bearings are readily available at a fraction of the "authorized" service price. The wiring is horribly flimsy for the application.

Look at this link. https://www.wanderlodgeownersgroup.com/forums/showthread.php?t=32866

I made this change and replace a flaky Webasto controller with the Beckett. I also took the opportunity to rewire the internals with silicone insulated wiring. Prior to the change, I threw a lot of money at the hit or miss Webasto. After the controller change and wiring upgrade, it has never failed to light.

TwoFeathersRD · March 08, 2021, 06:25:53 PM

Our shop installs and sells Webasto products. We have yet to have one fail. We get great support from our rep that is not what I can say about many companies.

If someone wants a product from them. just give us a call as we do not come on here often. We are owners of three Silversides Buses. We are building two into RVs now as we are a custom builder. We will be using their products in those builds as we do in all our Van conversions.

freds · March 09, 2021, 09:22:24 AM

Quote from: lostagain on January 25, 2021, 04:52:52 PM
A DBW 2010 is a 12 volt unit. 45 kw isn't a whole lot of heat either. I would try to fix what you have.

45KW is a lot of heat!!! My Espar unit is 10KW and it gets by, would like to double it.

Also the Chinese knock offs are rated by the fuel consumption so a supposed 16KW heater is actually 8KW of output..

dtcerrato · March 09, 2021, 04:11:51 PM

8kw = 27,000btu

freds · March 09, 2021, 07:01:07 PM

I was watching a video today that was comparing Webasto products and Espar/Eberspaecher and the consensus was that Webasto solution was quieter and had better options for buying parts and controllers after the warranty period is over.

I have an Eberspaecher Hydronic/M/10 and I am currently jumping through lots of hoops as the controller has done a safety lockout and the Ebay diagnostic kit I purchased is not working...

However in it's defense it more and likely that the screw ups were on my part in using it for R&D of a DIY hydronic heating system.

As to the quieter part what I do hear the pump pulsing metered amounts of fuel to the burner. Thinking of remounting the pump on rubber mounts when it is working again.

Though it is sort of comforting to wake up at 3AM to hear it pulsing away before rolling over and going back to sleep.

windtrader · March 10, 2021, 10:48:31 AM

Webasto hydronic heating system was installed when I got my bus. Three season has not seen a lot of use since by RV guides says stay away from cold. LOL

At least how my system is designed and configured, it is not dead silent. You do hear the burner fire up and hear the woosh of a lot of heat flowing into the plumbing. The fan powered registers have three flow settings and you can hear them on high, medium a little, and on low very hard to hear.

It works fine but there is some kind of leak now which I am still sorting out. Embarrassed to admit I forgot where the overflow tank is.

If I was installing a new heatings system into an empty coach, I do Webasto again if cost were not a consideration. Others have different systems so there are other solutions.