Question about Cfm 802 Ecofan Table

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My ecofan quit working. Blades rotate rough - Cfm 802 Ecofan Table

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Sounds like a bad thermoelectric module. This module is what generates the power to run the fan. You can get replacement modules for these fans on eBay.

Posted on Mar 16, 2010

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Ecofan not working


The problem is most likely a bad TEG module or possibly a bad fan motor. The most common problem is a failed TEG module. Caframo will not sell replacement TEG modules as they require you to return the fan to them for rebuild but the repair is quite easy. You can find the exact replacement on eBay or directly through Thermal Enterprises. They even have a troubleshooting and repair guide for the fan.

Feb 24, 2014 | Cfm 802 Ecofan Table

1 Answer

Why does a table fan slow down after some time?


Revolving blades in table fans pushes out air towards the front by creating a vacuum at the back of the induction motor. Other than providing air flow, the gush of air also cools the motor. Over time, esp if used in a polluted surrounding, dust collects inside the motor and causes friction in the shaft. If left for a prolonged period, this friction causes heat eventually drying up the lubrication, causing breakdown in the motor amature windings and also a leaky starting capacitor, thus slowing down rotation and also a complete failure.

2. Fans must be regularly taken apart, cleaned and lubricated. It is fairly easy if you are willing to learn. My India made Usha brand table fan is 48 years old and is still running smooth - just changed the start capacitor last year and my National ceiling fans are more than 35 years old.

3. In fact all moving parts in any equipment must be periodically taken apart, cleaned free of dust and grime and freshly lubricated. It will outrun your lifetime and serve the next few generations.

Best Regards,

Mahathev of Malaysia

May 29, 2010 | Cfm 802 Ecofan Table

1 Answer

What is the power system for ecofans - these are the fans / motors which run on electricity generated by temperature differentials in two different and adjacent metals. I would likt to build my own if...


The power source is a thermoelectric module (TEG). Failure of this module is the most frequent cause for fan problems. You can get replacement modules for these fans on eBay.

Mar 13, 2010 | Cfm 802 Ecofan Table

1 Answer

Our Eco fan does not turn. It fell on the wood stove once and bent the fram a bit , then it started working, now it doesn't at all. What is up?


It sounds like something is binding on it. Anything of this type (referred to as a heat engine or external combustion engine) need very low resistance. There may be a bent shaft or a small ding that is rubbing on one of the rotating parts. Good luck.

Jan 02, 2010 | Cfm 802 Ecofan Table

2 Answers

Have had this for 4 years, works great. Blades have stopped moving though still rotate smoothly by hand.


The problem could be with the thermoelectric module. You can easily test if this is the case by trying to run the fan off of any household battery. If the fan works off the battery then the problem is definitely with the thermoelectric module.

They are easily replaced by taking the two halves of the fan body apart. Just be sure to use CPU heat sink compound (thermal grease) on both sides of the new module before you reassemble the fan.

You can get the peltier modules from Thermal Enterprises by contacting them through email to thermoelectrics@aol.com or searching for Ecofan Repair on eBay. The CPU heat sink compound (thermal grease) is available at any "Best Buy", "Radio Shack" or electronics store.

Hope this helps.

Dec 13, 2009 | Cfm 802 Ecofan Table

2 Answers

Fan just stopped turning, even if the fire is going good, what could be wrong?


Bushings dried out at rotating shaft. Clean and Lubricate with a high temp. dry film lubricant.

Dec 07, 2009 | Cfm 802 Ecofan Table

2 Answers

The metal strip on the bottom, can it be replaced?


There are no replacement parts for this fan available, however I managed to get mine spinning like new after it had died. I took the two halves of the fan body apart, and scraped the heat sink compound off either side of the power plate. I then applied CPU heat sink compound that can be found at any computer or electronics store liberally to either side, and put it back together. The fan spins like new, spread the word!

Sep 27, 2009 | Cfm 802 Ecofan Table

1 Answer

I PURCHASED THIS HB CEILING FAN (52" KEMPER) ABOUT A YEAR AGO AND ITS WORKED GREAT. BUT ALL OF A SUDDEN IT JUST QUIT. I HAVE POWER TO THE FAN BUT IT WILL NOT WORK FROM THE REMOTE OR THE WALL BUTTONS. WHAT...


does the blades rotate?or just humming?either way,clean and check for possible capacitor blow-up.if not , then the motor is defective.have tech for mano y mano analysis.

May 15, 2009 | Hampton Bay AC414-LRU 52'' Kemper...

1 Answer

Ecofan.going.slow


The most likely problem is either mechanical binding (lack of lubrication) or a bad thermoelectric module. You can get replacement modules for these fans on eBay.

Feb 02, 2009 | Cfm 802 Ecofan Table

6 Answers

Ecofan only turns slowly


These fans can be rebuilt! Like many others, our fan died after being placed in the center of the stove top. I took the two halves of the fan body apart, and scraped the heat sink compound off either side of the power plate. I then applied CPU heat sink compound that can be found at any computer or electronics store liberally to either side, and put it back together. The fan spins like new, spread the word!

Nov 28, 2007 | Cfm 802 Ecofan Table

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