Harbor Freight 21 Gallon Air Compressor Thermal Cutout Switch Replacement
TwoFourSevenDIY TwoFourSevenDIY
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 Published On Aug 23, 2023

In this video I finally get around to rescuing my old Harbor Freight (Central Pneumatic) air compressor. Originally, I thought the issue was a bad reed valve but that didn't sort the issue. In the end replacing the thermal overload switch (circuit breaker) sorted out the issue and got my compressor up and running again.

Cutout Switch:
https://www.amazon.com/gp/product/B07...

Reed Valve set:
https://www.amazon.com/gp/product/B09...




00:00 - Intro
00:21 - Syptoms and Diagnosis
02:30 - Acessing The Switch
03:20 - A Note on Wire Connections
03:55 - Sourcing The New Switch
06:39 - Resetting The Cut-In & Cut-Out Limits
08:35 - Final Thoughts
09:36 - Bonus: Replacing The Reed Valves
12:40 - Outro

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