| Electronics > Repair |
| Replacing thermal fuse in a fog machine |
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| IanMacdonald:
If the machine heats up then highly unlikely the thermal switch is the problem You can see it's wired straight in series with the element so it's basically just a temperature limiter. More likely the liquid ingress damaged something on the PCB that controls the smoke fluid delivery. |
| electrolux:
--- Quote from: GrafZeppelin on May 20, 2018, 12:38:35 pm --- --- Quote from: electrolux on May 20, 2018, 12:27:06 pm ---Pretty sure the switch you showed in the pic automatically resets, look inside and see if you see a thermal fuse that looks a little like the pic here, test it like you would test a normal fuse and if its blown check the temperature, voltage and amp ratings which should be written on the side then order a new one. --- End quote --- Thanks for the suggestion, Looked inside and finally found the fuse. I'm learning so much today, really happy :D Just to double check, I have tested the fuse and it reads 0 ohms, meaning it has been blown, correct? --- End quote --- Yup, looks like it. If you want to be extra sure you can turn meter to the 'beep mode' which will make it beep when the two probes make contact. If it does not beep when you connect it to the fuse that means its blown. |
| abraxa:
Just for clarification: You say that the "heating" indicator light never turns off. That would be correct since the termal fuse is blown. However, you also say that the "machine just gets hotter and there is no fog comming out". Does it actually become hot when plugged in for 2-3 minutes or is that just an assumption? With the fuse being blown, I don't see how it could heat up but I just want to make sure we're all on the same page here. |
| jmelson:
One additional comment : When replacing these thermal fuses, DO NOT SOLDER them in! That will cause them to "blow" as in go open-circuit, as they will be exposed to the soldering temperature. (Don't ask how I know THIS!) You need to crimp the terminals. Possibly, they can be soldered with a really good heat sink applied closer to the body than where you are soldering to. Jon |
| paluszak:
Do you happen to know or remember the model or specs on the inline Thermal Fuse you used to replace the bad one in the Fog Machine you were working on? I am having the same issue and need to do the same, and wanted to get fuse on way home (before I am able to take apart and confirm this on mine, myself). Thanks! Jason |
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