New CD22 owner needs advice on Wallas Fan Noise

browntdb

I recently purchased a 2000 CD 22. It is a wonderful vessel. I fired up the Wallas for the first time today while working inside. The Wallas seems to be operating properly, the fan stays off when the top is raised and then starts up when the lid is lowered. My question is what is the normal fan noise that one should hear. I am hearing a repeating "cheep, cheep cheep, sound coming from the fan. I can't imagine trying to sleep in winter weather on the water with that amount of noise. I had expected perhaps a high speed fan noise that was uniform in nature, but not what I am hearing.

I would appreciate any feedback I could get, and if the Wallas needs some fan repair, how best to get that done.

Thanks!

Terry

Captains Cat · Posted: Fri Jan 18, 2013 8:45 pm Post subject:

Hopefully Mac from Scan will respond. He's here often to help often. That's not a normal sound!

Charlie

Dreamer · Posted: Fri Jan 18, 2013 10:35 pm Post subject:

If the noise is every 5 seconds or so, you may be hearing the diesel fuel being dripped into the combustion chamber. If so, normal.

tsturm

20dauntless · Posted: Fri Jan 18, 2013 11:12 pm Post subject:

My Wallas often makes annoying rattling noises. The noise typically emanates from the "cage" around the bottom of the unit. A bit of fiddling will (temporarily) eliminate the noise.

If it's a really loud sound, check to make sure nothing is physically touching the heater fan. I've had bags of food in the cabinet below the Wallas move around and end up touching the fan. That noise gets your attention quickly but is easy to stop.

Otherwise, call Scan Marine, they're quite helpful in my experience.

Sunbeam · Posted: Fri Jan 18, 2013 11:23 pm Post subject:

Another option (if it comes to that): My 22 came with a Wallas that had really never been used, but which was ten years old. There was old fuel in the fuel jug and I really had no idea whether there was any in the stove or not (i.e gunking things up). I had enough other projects going, and the Wallas is complicated seeming enough (to me anyway) that I just decided to take it out and ship it to Scan Marine in Seattle (yes, apparently there is something on this earth that I don't feel I have to do myself Rolling Eyes

). It took about 10-20 minutes to remove, and was not difficult. (I tossed the fuel jug because it looked kind of fuel saturated and I figured I'd just have Scan send a new one).

Anyway, the folks at Scan went through it, looked it over, fired it up and tested it, and then gave it a clean bill of health (and said it may never have been used). Sweet! Now I'm trying to decide whether to have them ship it back to me or whether to sell it and go with a different system for cooking/heating; but either way I know it's in good shape.

Just an option,
Sunbeam

Aiviq · Posted: Sun Jan 20, 2013 7:15 am Post subject:

I never liked the fan noise with the lid down. What I do when using the stove as a heater is I got a "heat activated" fan that is designed to circulate heat on top of a wood stove. I put that on on a burner, and aim the fan to blow over the other burner. It circulates the warmed air around the cabin silently. You can see a picture of the fan in my album "inside passage trip 2005".

browntdb · Posted: Sun Jan 20, 2013 12:43 pm Post subject:

Aiviq,

Thanks for the information on the eco fan. How does it work compared to the fan on the Wallas stove in circulating air and heating the cabin?

As an additional note on my original post. I listened again to my fan on my Wallas, and it may just be normal noise. It is more like a ticking sound. Almost like sometihing is touching the fan as it rotates and puts out a repeating ticking noise. There is nothing touching the fan that I can see.

Bill K · Posted: Sun Jan 20, 2013 1:34 pm Post subject:

You might want to see if there is someway to oil the bearing's

Bill Kelleher

Sea Wolf · Posted: Sun Jan 20, 2013 1:44 pm Post subject:

brntdb-

You said "puts out a repeating ticking noise".

I'll bet it's either the diesel fuel hitting the drip pan, or the fuel pump ticking away.

It could also be a "hiccup" or sudden surge in the fan speed caused by the fuel pump clicking on and dropping the fan rpm due to the lowered remaining voltage available to power the fan.

Will be interesting to hear what the Wallas tech thinks!

Joe. Teeth

browntdb · Posted: Sun Jan 20, 2013 6:10 pm Post subject:

Yes, I will call them tomorrow. I do see on the Scan Marine website that there is a Technical Note on the 95D about noise and eventually causing PC board failure. It may be that the fan needs replaced but will see. If I need to pull the unit, I will probably be back seeking advice on the best way to remove the unit. I don't think the unit has been used all that much. At a minimum, probably should get new fuel for it. It is a Kerosene model I believe

Thanks,

Terry