SHURFLO COMFORT AIR CEILING FAN

I will add this to the discussion:

I have 3 vents on my Bigfoot roof. One has a fantastic fan. Never a problem.

The vent in the bathroom is where I wanted the Shurflo fan.

I removed the old standard vent and installed the new Shurflo fan.

As any of you know that have removed a vent on the roof for any reason is a chore!

Now that it was installed, what do you do if you have a problem?

Geezzzzzzzzzzzzzzzzzzzzzzz can not remove it and send it in!

And I can not remove the Shurflo vent and exchange it for a new one!

Give me the parts! NO NO NO said Shurflo.

So in my case, I trouble shot the 3 problems I had...

1. squeak/chirp
2. Intermittent stalling at low speed turning on.
3. Thermal shutdown

Squeak/chirp =Bearings
2 Intermittent stalling= motor problem
I argued with the tech.. He said bad voltage.. I said no... I have been in the electronics and mechanical engineering field for 47 years I know what I am talking about.



3. Motor thermalling out... Too hot... 100deg outside and the motor while running medium speed would shut off... Argued with the tech...
Gave up talking... The Smoked glass vent cover allows heat transfer... I measured 170deg on the motor.. The vent cover needs to be white.

So after well over a year the cat is out of the bag.

Jim

qtla9111 wrote:
Hmm, it started out looking like a good deal. Since then it has been downhill all the way. I guess it'll have to be a Fantastic Fan.

Thanks everyone.

I believe that Shurflo is in trouble because of the bad motor issue and may not even understand what the problem is. Bummer..

Like I said, I had discussions with the tech at Shurflo and he had no clue and was rather defensive.

I prefer the Shurflo fan over the fantastic fan. The variable speed is great.

My fantastic fan has always had a mild oscillation of an airflow sound when running on low.. That sucks too.

The Surflo fan blades are designed for silence and when running without the chirp squeak is great.



Jim

Hmm, it started out looking like a good deal. Since then it has been downhill all the way. I guess it'll have to be a Fantastic Fan.

Thanks everyone.

fj12ryder wrote:
CCW? CW? The chirp sounds like the noise mine made, it almost sounded like there was something caught in the fan and was hitting the blades. That is what I checked for first.

Yep that's it.. My fan turns either direction. CCW or CW.

Chirp/ squeak...Definitely bearings... Needle/roller bearings are for non thrust in and out... A fan puts either a pull or push on the stator.. So a method of keeping the stator from moving in and out. Needle/roller bearings can not handle in and out thrust. The Race and rollers will rub/squeak and wear.

I need to order bearings for my original motor to fix. Gave up on Shurflo!

Jim

CCW? CW? The chirp sounds like the noise mine made, it almost sounded like there was something caught in the fan and was hitting the blades. That is what I checked for first.

fj12ryder wrote:
We have one in our 2010 Fuzion and I'm less than impressed. It's much noisier than the Fantastic Fan we had in our Big Sky.

I took the motor out to see if there was anything to be done about the noise. I could find no replacement motor anywhere and several forums I found commented that the motors are all but impossible to find. I gave on replacing it and took it partially apart, lubed and greased it, and put it back together. It's quieter now, but still noisier than the Fantastic Fan.

Same issue with mine.. although not the fancy one. New about 1 year ago. Right out of the box it started to have problems. A dry bearing kind of chirp, intermittent in nature.. The motor would also stall sometimes when starting. I have to turn the fan a bit to make it start. It also would thermal out when the temperature was 100deg outside and the vent cover was in the sun.


I contacted Shurflow... After much discussion they sent me a new motor.

The tech there had no idea how the variable speed worked...
I reversed engineered the circuit. It used a variable DC square wave to control the speed. Nice, excellent, feature.

In the meantime I took the motor apart....I found that the front and rear bearing was needle type.

It is my understanding that if you have a fan attached and you want to run the motor CCW and CW then you need one of the bearings to be ball type to control the thrust.

The new motor I got also chirps and stalls...

I am disgusted with the fan....but use it... I am going to get a replacement ball type bearing for the front fan shaft..

A close friend has had his Shurflo fan for years... No problem no noise.

Jim

We have one in our 2010 Fuzion and I'm less than impressed. It's much noisier than the Fantastic Fan we had in our Big Sky.

I took the motor out to see if there was anything to be done about the noise. I could find no replacement motor anywhere and several forums I found commented that the motors are all but impossible to find. I gave on replacing it and took it partially apart, lubed and greased it, and put it back together. It's quieter now, but still noisier than the Fantastic Fan.

I've had the Silver version installed for 5 years or so. Runs VERY quietly and still moves a lot of air. It's variable speed but not reversible. I consider it to be a great investment. I have no direct experience with the Fantastic Fans.