Taking Apart The Wallas 95 DU

SeaSpray · Posted: Sun Apr 20, 2008 4:55 pm Post subject:

Hi Pat,

Last Sept. while cruising the SJ and Gulf islands I had a similar problem. When I replaced the 2amp fuse with a 5amp the stove worked fine for dinner. The next morning I started it and went out to the dock. When I stepped back in the cabin was filling with smoke. I had to pull off the power lines to stop the burning of the components on the main circuit board. Scanmar said it should not have done this even with the 5amp but I won't do that again.

I stopped at Scanmar and they replaced the circuit board at no cost and I was very relieved. I would suggest leaving the fuel line on and sending the control knob on/off switch assembly. They run the stove after repair to test it and this will test the entire system.

I was on my way home when I stopped and they fixed it while I waited - again great service that I was thankful for. I re-installed the stove and tested it before leaving. It worked fine but I did not wait for it to completely shut off before I went on down the road. About 2 hours later when I stopped the fan was still running and it had not shut off completely. I call the tech. and he said it had tested fine and it could only be the on/off assembly that I had left in the boat. I did not have the time to go back so I went on home.

At home I checked the on/off assembly which is just a variable resistor and switch and it looked fine. I tested the stove again and it worked fine and has ever since.

Good Luck,

Steve

Dreamer · Posted: Sun Apr 20, 2008 11:39 pm Post subject:

Tom and Rene,

That's an awesome piece of work, Thanks. I printed it out and it will go in my on-board file of equipment manuals. Roger

Pat Anderson · Posted: Tue Apr 22, 2008 9:34 am Post subject:

Well, I got the Wallas out without destroying it, Patty hauled 'er into Scan Marine yesterday, we'll have it back by the end of the week. The boat goes down to LUSR as soon as we can get her down there for electrical troubleshooting, since Bob Austin does not live next door. I have every confidence in Aaron and crew at LUSR, as Patty says, "It's only money"...

Pat Anderson · Posted: Fri Apr 25, 2008 9:44 am Post subject:

Scan Marine turned the Wallas around in a couple of days, Patty brought it home yesterday. Bill was $278 for the service and N/C for the circuit board, which was replaced under warranty. It would have been $591 if not under warranty (plus the $278 I guess), so kind of dodged a bullet. Now the boat is in at LUSR Fife for the electrical troubleshooting, so I can't stick the Wallas back in to try 'er out...but hopefully we'll have Daydream back soon, Friday Harbor is coming up quick!

Dora~Jean · Posted: Fri Apr 25, 2008 10:39 am Post subject:

Pat, any reason why the failure? Bad circuit board component, voltage, pump overload (causing board failure)? Doesn't seem reasonable to just replace the circuit board.

Pat Anderson · Posted: Fri Apr 25, 2008 3:31 pm Post subject:

Patty here. The boys at Scan Marine told me these stoves need regular maintenance---every 1000 hours. They also said they are meant to be run on diesel, not kerosene or Kleen Heat, and especially not with kerosene that has been stored a year or more. Beware of bargain kerosene. They also said our stove had quite a bit of salt on it and they recommended we spray the entire bottom with a product called Boeshield made by Boeing. It seems our stove needed some maintenance at the same time we were having our electrical issues and it was just a coincidence. I'm glad they replaced the circuit board while it was still under warranty

Doryman · Posted: Fri Apr 25, 2008 3:35 pm Post subject:

Pat Anderson · Posted: Fri Apr 25, 2008 5:06 pm Post subject:

Patty here. The nature of the maintenance is too technical for me but it involves cleaning the carburetor (right?), cleaning out soot build up, and I don't know what else. The boys told me the regular maintenance reference is "in the manual."

charless · Posted: Tue Aug 07, 2012 7:13 pm Post subject: Thanks Tom and Rene

Sorry we didn't get to meet when we were in Portland in June. Hope your transom project is progressing.

I made a copy of your manual on the Wallas and took it with us when we trailed "Vagabundo" to the San Juan's in July. I carried a propane stove since our Wallas was failing to work most of the time.

The first rainy day after we launched in Anacortes I got out the copy of your manual, took a deep breath, and following your helpful descriptions, took the burner apart.

The burner, glow plug, temperature sensor, etc. looked fairly clean to me. I removed and re-inserted every electrical plug I could find, blew out the fuel line and installed fresh red diesel.

I thought Scan Marine might be my next stop. However, the stove worked PERFECTLY for cooking and heating for the next three weeks! I have no idea what I did but your manual gave me the confidence to take it apart.

Thank you.

Charless and Marjorie

Chris Bulovsky · Posted: Tue Aug 07, 2012 10:10 pm Post subject:

I'm exhausted just reading this. I am so thankful I don't own one.

Way to go for doing it yourself! I admire that. I would probably fix one with a hammer. Your a better man than I. Thumbs Up

ShellBack · Posted: Wed Aug 08, 2012 10:16 am Post subject:

Thanks very much for the manual. It was done up great and clear. I work in the Appliance Service industry and the manufactures should take lessons from you. Thanks Again. Terry Very Happy

Duke · Posted: Wed Aug 08, 2012 11:02 pm Post subject: Wallas Stove

Super job on your Wallas experience!!! Thanks for sharing!!!

primative · Posted: Fri Aug 10, 2012 2:50 pm Post subject:

Charless and Marjorie
WAY TO Go! I'm glad it worked out for you. Sounds like you were not sure what fixed the problem but fuel was maybe a factor.I'm curious, your boat is a 98, is the stove of that year, (85DU)?

My transom repair is complete, motor, and kicker reinstalled. Now finishing details, reinstalling up-grading some equip.. Oh the devil and his details. Should finish GPS and transducer mounting this wk. end..

Thank You one and all for your kind comments
Tom