Thomas J Posted June 25, 2019 Share Posted June 25, 2019 I have a Mex Range Hood. It is apparently manufactured in Italy but I can't find any information on it over the internet. They are still sold here in Thailand. The push button board that activates the exhaust fan is damaged. Does anyone know of an Appliance parts supplier in Pattaya that might carry a replacement part for it? Link to comment Share on other sites More sharing options...
geoffbezoz Posted June 25, 2019 Share Posted June 25, 2019 Well, after some of your replies in the thread about 3BB speeds to be too surprised if nobody bothers to help you on this one. Link to comment Share on other sites More sharing options...
Thomas J Posted June 25, 2019 Author Share Posted June 25, 2019 12 minutes ago, geoffbezoz said: Well, after some of your replies in the thread about 3BB speeds to be too surprised if nobody bothers to help you on this one. I was very clear that nothing changed other than the phone call to 3BB and I got numerous replies that it could be due to virus, stealing signal, heated router, etc. After reading about 6 of those responses all of which ignored the original thread it does get irritating. Link to comment Share on other sites More sharing options...
Kwasaki Posted June 25, 2019 Share Posted June 25, 2019 Do they not have a head office in Thailand ? maybe go back to the supplier where you bought it. Link to comment Share on other sites More sharing options...
ProbPossConf Posted June 25, 2019 Share Posted June 25, 2019 MEX service center in Bangkok. Telephone nbr: 02-817-8999. You should get the part number before calling. Ask your installer or just go to HomePro or any other major kitchen showrooms who will have a parts catalog. Link to comment Share on other sites More sharing options...
Crossy Posted June 25, 2019 Share Posted June 25, 2019 Ours isn't Mex, but the control board also failed. Turned out to be the transformer open-circuit, replacement was a couple of bucks from aliExpress. If you've got it apart check the obvious like fuses and the transformer, it could be an easy fix. Link to comment Share on other sites More sharing options...
Thomas J Posted June 26, 2019 Author Share Posted June 26, 2019 22 hours ago, ProbPossConf said: MEX service center in Bangkok. Telephone nbr: 02-817-8999. You should get the part number before calling. Ask your installer or just go to HomePro or any other major kitchen showrooms who will have a parts catalog. Thank you so much. Link to comment Share on other sites More sharing options...
Thomas J Posted June 26, 2019 Author Share Posted June 26, 2019 14 hours ago, Crossy said: Ours isn't Mex, but the control board also failed. Turned out to be the transformer open-circuit, replacement was a couple of bucks from aliExpress. If you've got it apart check the obvious like fuses and the transformer, it could be an easy fix. Thank You. This one has a circuit board inside. There is an area along on of the runs on the board that you can see a burn on. I know some people have silver soldered those area to repair, but if I could find a replacement board or entire switch, I think I would be better off. Link to comment Share on other sites More sharing options...
sometimewoodworker Posted June 26, 2019 Share Posted June 26, 2019 10 hours ago, Thomas J said: Thank You. This one has a circuit board inside. There is an area along on of the runs on the board that you can see a burn on. I know some people have silver soldered those area to repair, but if I could find a replacement board or entire switch, I think I would be better off. Where is the fault? Link to comment Share on other sites More sharing options...
Thomas J Posted June 27, 2019 Author Share Posted June 27, 2019 4 hours ago, sometimewoodworker said: Where is the fault? If you see the electric runs between the silver solder it is on the reverse side. One burn close to a solder point. Link to comment Share on other sites More sharing options...
sometimewoodworker Posted June 27, 2019 Share Posted June 27, 2019 2 hours ago, Thomas J said: If you see the electric runs between the silver solder it is on the reverse side. One burn close to a solder point. Well all the solder joints (possibly lead tin, not silver as that's usually a high temperature one) look perfectly OK, the discolouration round the joints are flux residue. There could be a dry joint 3rd up on the left (try reflowing that one with lead solder), but none of the PCB tracks look damaged and no burn that is visible in that picture. Link to comment Share on other sites More sharing options...
Fruit Trader Posted June 27, 2019 Share Posted June 27, 2019 As the operational fault has not been disclosed I guess the OP has checked the motor and found fault on the switch PCB. Cant see any obvious damage on the PCB though. Like many kitchen appliances, parts are often common across brands. Always search the part number first. 08080275 Link to comment Share on other sites More sharing options...
Thomas J Posted June 27, 2019 Author Share Posted June 27, 2019 1 hour ago, sometimewoodworker said: Well all the solder joints (possibly lead tin, not silver as that's usually a high temperature one) look perfectly OK, the discolouration round the joints are flux residue. There could be a dry joint 3rd up on the left (try reflowing that one with lead solder), but none of the PCB tracks look damaged and no burn that is visible in that picture. I took the picture to get the part number. The reverse side has a black burn mark around one of the solder points on the reverse side. I can only assume that is the problem since it does not work and so I can't test any of the switches. Since none of the switches work I suspect it is the circuit board. I have heard about reflowing by here in Thailand getting anyone who is skilled at repair is a challenge. Link to comment Share on other sites More sharing options...
bankruatsteve Posted June 27, 2019 Share Posted June 27, 2019 29 minutes ago, Thomas J said: I took the picture to get the part number. The reverse side has a black burn mark around one of the solder points on the reverse side. I can only assume that is the problem since it does not work and so I can't test any of the switches. Since none of the switches work I suspect it is the circuit board. I have heard about reflowing by here in Thailand getting anyone who is skilled at repair is a challenge. It appears to be a very simple circuit maybe a photo of the component side would help with ideas. Link to comment Share on other sites More sharing options...
sometimewoodworker Posted June 27, 2019 Share Posted June 27, 2019 1 hour ago, Thomas J said: I took the picture to get the part number. The reverse side has a black burn mark around one of the solder points on the reverse side. I can only assume that is the problem since it does not work and so I can't test any of the switches. Since none of the switches work I suspect it is the circuit board. I have heard about reflowing by here in Thailand getting anyone who is skilled at repair is a challenge. Humm, it would help if you posted a picture that actually shows the place that could be a problem rather than a side that shows as probable perfect wouldn't it? FWIW circuit boards can be damaged but seldom are, usually it's the components that fail Reflowing a solder joint is hardly rocket science and requires very little skill. Even I am capable of doing it. ???? so it can't be very difficult. The switches may be able to be tested with a very cheap multimeter, set to resistance. Link to comment Share on other sites More sharing options...
Thomas J Posted June 27, 2019 Author Share Posted June 27, 2019 3 minutes ago, sometimewoodworker said: Humm, it would help if you posted a picture that actually shows the place that could be a problem rather than a side that shows as probable perfect wouldn't it? FWIW circuit boards can be damaged but seldom are, usually it's the components that fail Reflowing a solder joint is hardly rocket science and requires very little skill. Even I am capable of doing it. ???? so it can't be very difficult. The switches may be able to be tested with a very cheap multimeter, set to resistance. I have already had the technician "repair" the PCM track by soldering it and reinstall it. It works but not well. A new switch is only about $600 THB so easier to buy new than screw around with it. The trouble is finding a repair place that sells it. Link to comment Share on other sites More sharing options...
Crossy Posted June 27, 2019 Share Posted June 27, 2019 That's a very simple board, I doubt it's really defective. Your local man should be able to test and source the switches anyway. You say it "works but not well", define "not well", if the fan is running slow it's more likely the motor capacitor (an easy and cheap fix) than the switch. Link to comment Share on other sites More sharing options...
Thomas J Posted June 27, 2019 Author Share Posted June 27, 2019 47 minutes ago, Crossy said: That's a very simple board, I doubt it's really defective. Your local man should be able to test and source the switches anyway. You say it "works but not well", define "not well", if the fan is running slow it's more likely the motor capacitor (an easy and cheap fix) than the switch. You have to jiggle the switch to get it to turn on. The real question is that the cost for a new switch is only about $500 baht. I just need to know if there is an appliance parts place in Pattaya. The remainder of the suggestions may or not be true, but they just aren't worth the effort to try and repair a cheap part. Link to comment Share on other sites More sharing options...
Crossy Posted June 27, 2019 Share Posted June 27, 2019 OK, you have a faulty switch. If 600 Baht is cheap to you then go for it. New switch, maybe 20 Baht + 100 to fit it. Or you could swap the jiggly switch with one of the others that you don't use. I'm sure there's an Amorn in Pattaya, try them (they may have the switch too). Link to comment Share on other sites More sharing options...
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