pumps heats up excessively causing a rubber burning smell

pupms heats up excessively and causes a burning rubber smell model number 4yn50a(AGM05)

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Bill says...

The pump will normally get very hot, hot enough to burn skin.

If you are running the compressor excessively, and it is not a continuous duty model, then you are literally burning up the motor and pump.

See the page on DUTY CYCLE for more info, and post again here if this doesn't help.

Cheers,

Bill