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JaiMaai

Help me fix my fan.

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I have a Hatari fan that stopped working. I'm sure it's a relatively simple fix but I'm currently stuck.

 

1. There is no obvious evidence of the windings burning out.

2. The thermal fuse has not blown.

3. The fan turns freely when turned by hand so I don't think it needs oiled but maybe it does.

4. The fan would turn VERY slowly if started by hand.

 

Based on these factors I changed the capacitor (1.8 microfarad 400 V) but the fan still has a problem. It still won't work properly. If you give the fan a hand start then it will run, a lot faster than before I changed the cap, but it's not fixed.

 

Any ideas. I want to fix this because I want to learn about how motors work better. It's been a long time since I studied the theory at Uni and I want to get some practice in.....

 

If I have to buy a new one eventually then so be it but fixing myself is better just so I know I did it.

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had this problem myself you have addressed the two usual problems  cap and bearing lube    after that i have never found any further fixes    dont know  unless of course you delve into rotors etc its cheaper to buy new    by the way high price does not buy you extra quality   but it does get you brand names if your into that

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There is a slight resistance to turning the rotor by hand but it's by no means stiff so I'm guessing that's normal? Changing the capacitor made a big improvement but it's still not right.

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There shoild not be any resistance atall. Light as a feather there two bearings in most lube both

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Ok. I'll try that in the morning. Thanks.

Having a beer watching the football just now

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34 minutes ago, Suradit69 said:

There's a university course in fixing cheap fans?

 

Put the fan in/near your bin and spend less than THB 1000/US$30/€ 37 for a new one ... or are you living off income in pounds sterling?

Why bother with the last part of your reply - did you make the effort to read all his post -

Quote
19 hours ago, JaiMaai said:

If I have to buy a new one eventually then so be it but fixing myself is better just so I know I did it.

 

He wasn't even having a go at anything Thai either.........:shock1:

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Can try spraying the windings with contact cleaner, which costs about the same as a new fan. Good luck

 

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Posted (edited)
32 minutes ago, topt said:

He wasn't even having a go at anything Thai either.........:shock1:

I was making a suggestion to save him the bother despite his quest for personal achievement in appliance maintenance, admirably though that may be. 

 

Not sure what relevance fan engineering or the life span of electrical appliances has to do with "having a go at anything Thai."  Built-in obsolescence in industrial design ... designing a product with an artificially limited useful lifespan ... is hardly a Thai innovation.

 

Some of our farang brotherhood with faltering homeland economies and plummeting currency exchange rates might, understandably, feel compelled to be extraordinarily frugal.

 

Yes, I did read the whole post. My reaction was both visceral and informed, though obviously disturbing to some especially sensitive readers. Sorry to have caused you a tizzy.

Edited by Suradit69
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3 minutes ago, Suradit69 said:

I was making a suggestion to save him the bother despite his quest for personal achievement in appliance maintenance, admirably though that may be. 

 

Not sure what relevance fan engineering or the life span of electrical appliances has to do with "having a go at anything Thai."  Built-in obsolescence in industrial design ... designing a product with an artificially limited useful lifespan ... is hardly a Thai innovation.

 

Some of our farang brotherhood with faltering homeland economies and plummeting currency exchange rates might, understandably, feel compelled to be extraordinarily frugal.

 

Yes, I did read the whole post. My reaction was both visceral and informed, though obviously disturbing to some.

always some <deleted> rather like me to upset the apple cart

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In my house, fans run 24h/day. The first one I bought ran only one year. I used to clean grids and propeller every month.

Now I clean the fans every 2 weeks and every 2 months I open the motor cover and do a bit of silicon spray in both bearings (front and rear). They are running now for almost 2 years without any problem and very quiet.

 

You could make a try with a 3.3 microF capacitor or add another 1.8 in parallel.

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JaiMaii, if you could let us know if the fan was repaired, and how, it would be appreciated by many on here, I'm sure.

 

It's clear that your post is about finding an answer to a problem as well as learning something new.   It's not about saving some money, although there's nothing wrong with that.

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It's not fixed yet. Changing the capacitor has improved it but it's still not turning 100% freely. I'm going to try some oil or grease on the bearings next but I didn't have the time today. If that doesn't work then I'm going to give up.

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When I had a similar problem I simply bought a new motor in Tuk Com basement for around a couple of hundred Baht  and stuck it in.

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20 hours ago, JaiMaai said:

 

I have a Hatari fan that stopped working. I'm sure it's a relatively simple fix but I'm currently stuck.

 

1. There is no obvious evidence of the windings burning out.

2. The thermal fuse has not blown.

3. The fan turns freely when turned by hand so I don't think it needs oiled but maybe it does.

4. The fan would turn VERY slowly if started by hand.

 

Based on these factors I changed the capacitor (1.8 microfarad 400 V) but the fan still has a problem. It still won't work properly. If you give the fan a hand start then it will run, a lot faster than before I changed the cap, but it's not fixed.

 

Any ideas. I want to fix this because I want to learn about how motors work better. It's been a long time since I studied the theory at Uni and I want to get some practice in.....

 

If I have to buy a new one eventually then so be it but fixing myself is better just so I know I did it.

 

To fix, please pay 1,000 baht and buy new.

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