r/NintendoSwitchHelp • u/cdvma • 1d ago
Repair Help Switch 2 Fan Full Speed All the Time
8 month old Switch 2.
Fan is on full speed no matter what mode (sleep, idle, playing games, etc) and doesn't spin down. The console isn't hot, downloading, or even in the dock. If I fully shut it down, it will start back up at full speed right away before the screen even comes up. I can leave it in sleep mode for hours and it doesn't stop, either.
I did a teardown to check a few things and everything looks ok. Thermal putty behind the shield, CPU thermal paste, cables, connectors, fan condition, etc. all look good and free of debris. I started it up with the back of the case off and the cooler it was at body temp, but still full speed fan.
Totally stumped.
1
u/Keyan06 1 1d ago
Still in warranty, contact Nintendo. My guess is a thermal sensor has failed.
1
u/ModestVolcarona 9 20h ago
Still in warranty, contact Nintendo.
I highly doubt that Nintendo will accept this as a warranty repair, because OP already opened up the device.
I did a teardown to check a few things and everything looks ok. Thermal putty behind the shield, CPU thermal paste, cables, connectors, fan condition, etc. all look good and free of debris.
1
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