OM-235 464 Page 8
14. Troubleshooting
Trouble
Remedy
Excessive noise.
Pump priming noise can occur during startups, or after changing or replacing coolant. Noise will subside
after pump is primed. Tighten filter cap if noise persists.
Have Factory Authorized Service Agent check unit if motor is hitting divider mid-plane.
Coolant system does not work.
Be sure input power cord is plugged into an energized receptacle, and power is turned on.
Check line fuses or circuit breaker, and replace or reset if necessary.
Motor overheated. Unit starts running when motor has cooled.
Have Factory Authorized Service Agent check Power switch S1 and motor (Mot).
Decreased or no coolant flow.
Add coolant.
Check for clogged hoses or coolant filter. Clean filter or clean / replace hoses if necessary.
15. Circuit Diagram For Cooler
235 469-A
