San Jose, Ca
I have a old Sears model 106.153784 2HP 220 Volt compressor and the motor stalls when it gets up to around 50-60 psi.
Seems the pressure is backing up to the head.
I cleaned the reed values and they seem alright but still have that problem.
Cleaned the spring valve in the line to the tank and that valve seems to work with no luck fixing the problem.
Any help would be most appreciated. You think new reed springs would help?
Hi Stan. Thanks for visiting and writing in.
“The pressure is backing up to the head” is expected, as the back pressure increases as the pressure in the tank builds. The compressor is built to accommodate that.
When you say the motor stalls, are you saying that the motor shaft rotation slows to the point where it stops?
If that’s the case, then suspect you have either a failing capacitor, a problem motor, or a mechanical problem with the compressor pump. All could account for the motor not being able to overcome the increasing load as the pressure builds.
Start by testing the capacitor(s) and ensuring they are working properly. See the page on how to do so on this site, and then please post a comment with the results.
If you could add a photo or two of your compressor is would help us all.
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