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View attachment 50021
Regards,
Harald
I'll post again when I do the final installation and testing of the new part. I can't upload yet, waiting on admin.
View attachment 48987 Hi all: I am in the process of doing this same repair. It should be noted that removal of the board is imperative to properly servicing the transformer unless you like grappling around under the chair to remove the wire ties, retaining nut and transformer lead connectors to remove the transformer. The connectors come off with little tabs that must be raised while pulling them apart; similarly with the motor connections on back of the board. There is also 4 screws holding board to bottom of chair chassis-I found that pulling the pin off the recliner arm servo underneath permitted the chair back to be moved forward to access board cover and mounting screws. I would also suggest that one buy the barrel-type thermal cutoff as it is rated for 10 amps while the flat type only 2 or 3. This may make a big difference on warmer days or heavy chair usage. I also plan to drill some holes in the side of the board cover to allow some heat to escape from the transformer. I would suggest only the sides because dust or other debris may be able to fall in from above. I also had to undo one secondary winding and unravel it a few times to create enough room to get at the remains of the fuse. This must go back just like it was. Heat shrink around the winding solder joints should prevent any shorts after retaping it up. I am also going to bench-test the tranny before re-installing. Apparently my replacement parts (I bought 2 round ones from guy in the link above) are already in the country so I'm just waiting for them to arrive. I will try to post some pics and commentary of re-assembly (minus the cursing and expletives I'm sure will occur) when the time comes.
Once you received the part did the repair go well? Your description of the work is what I hope to use to repair my chair! If there are any pictures of the "after" please update us. Thanks!
Thanks, this worked for me!Hello, I have fixed a few of these chairs and I know the problem that you are having. The problem is the Torodial step down transformer has blown the thermal fuse. It is a $2 fix, but is a bit difficult to get to. Look on the MCB and find the big round thing. The black and white wires are the power in. The fuse is soldered on to one of them. 115 degree C fuse bought on ebay. Solder a new one in and you're back in business. Be careful to not damage any of the wiring on the transformer. They can get very hot and cause a fire if misshandled. View attachment 33325 View attachment 33326 View attachment 33325 View attachment 33326
View attachment 48987 Hi all: I am in the process of doing this same repair. It should be noted that removal of the board is imperative to properly servicing the transformer unless you like grappling around under the chair to remove the wire ties, retaining nut and transformer lead connectors to remove the transformer. The connectors come off with little tabs that must be raised while pulling them apart; similarly with the motor connections on back of the board. There is also 4 screws holding board to bottom of chair chassis-I found that pulling the pin off the recliner arm servo underneath permitted the chair back to be moved forward to access board cover and mounting screws. I would also suggest that one buy the barrel-type thermal cutoff as it is rated for 10 amps while the flat type only 2 or 3. This may make a big difference on warmer days or heavy chair usage. I also plan to drill some holes in the side of the board cover to allow some heat to escape from the transformer. I would suggest only the sides because dust or other debris may be able to fall in from above. I also had to undo one secondary winding and unravel it a few times to create enough room to get at the remains of the fuse. This must go back just like it was. Heat shrink around the winding solder joints should prevent any shorts after retaping it up. I am also going to bench-test the tranny before re-installing. Apparently my replacement parts (I bought 2 round ones from guy in the link above) are already in the country so I'm just waiting for them to arrive. I will try to post some pics and commentary of re-assembly (minus the cursing and expletives I'm sure will occur) when the time comes.
I finished replacing the thermal fuse, and tried placing the fixed toridial transformer back in massage chair. However, I get same error message. I have tried switching the power supply off and on to reboot chair. Any Ideas about what is wrong? And how do you home the chair manual through remote? Thanks for any help you can provide, this project has been a real headache.View attachment 48987 Hi all: I am in the process of doing this same repair. It should be noted that removal of the board is imperative to properly servicing the transformer unless you like grappling around under the chair to remove the wire ties, retaining nut and transformer lead connectors to remove the transformer. The connectors come off with little tabs that must be raised while pulling them apart; similarly with the motor connections on back of the board. There is also 4 screws holding board to bottom of chair chassis-I found that pulling the pin off the recliner arm servo underneath permitted the chair back to be moved forward to access board cover and mounting screws. I would also suggest that one buy the barrel-type thermal cutoff as it is rated for 10 amps while the flat type only 2 or 3. This may make a big difference on warmer days or heavy chair usage. I also plan to drill some holes in the side of the board cover to allow some heat to escape from the transformer. I would suggest only the sides because dust or other debris may be able to fall in from above. I also had to undo one secondary winding and unravel it a few times to create enough room to get at the remains of the fuse. This must go back just like it was. Heat shrink around the winding solder joints should prevent any shorts after retaping it up. I am also going to bench-test the tranny before re-installing. Apparently my replacement parts (I bought 2 round ones from guy in the link above) are already in the country so I'm just waiting for them to arrive. I will try to post some pics and commentary of re-assembly (minus the cursing and expletives I'm sure will occur) when the time comes.