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Alexander AshleySep 7, 2025
What causes high temperature in my Sullair Air Compressor?
- TTodd JonesSep 7, 2025
High compressor temperature could be due to: * An open compressor temperature switch; check the wiring connection and tighten if loose, or check switch continuity to ground and replace if necessary. * Low receiver tank fluid level; add fluid to the receiver tank as required. * A loose or broken fan belt; tighten or replace the belt. * Insufficient cooling air flow or a dirty fluid cooler core; clean the core thoroughly and check for proper ventilation. * A clogged compressor fluid filter; change the fluid filter element. * A faulty fluid thermostat; change the fluid thermostat element. * A plugged fluid cooler tube (internal); replace the cooler.
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