Just like changing the oil in your car, regular maintenance on your rectifiers can extend its useful life. Scheduling time to address the following checklist is recommended at least bi-annually and more frequent in harsh conditions.

  • Before powering down the system, check that the rear fans are operating. If the system is operational, the fans should be rotating. Running the system without forced air cooling will likely end in module failure. Note and address the issue as soon as possible.
  • Safety first, power down and lockout the supply to the cabinet. Verify a de-energized state.
  • Turn off each individual SMPS module circuit breaker.
  • Use a hand-held Wisk broom to clean off any build up on the rear fan guards.
  • Check for tightness on all incoming voltage connections. Over time, heating and cooling can loosen the incoming power connections as well as supply to each individual circuit breaker.
  • Use a damp rag and wipe wiring as required to remove buildup of dust, dirt, or debris.
  • Look for wire connections that are frayed, or close to becoming shorted to adjacent wiring. Repair as required.
  • Sweep heavy deposits of dirt and dust buildup from inside the cabinet. Use a shop vac to remove any hard to get debris.
  • Replace or clean air filters in the cabinet (if equipped) – Note: air filters may need to be cleaned or changed more frequently.
  • Use a cleaning spray on clean rags to wipe the air inlet of each module to remove any buildup of environmental dust.
  • Check internal module DC buss connections for tightness. Look for discoloration or signs of heating. If the Buss is removed, clean it thoroughly and apply a thin coating of EJC #2 during reassembly for electrical buss connections. This can also be done when changing a module.
  • Turn on control circuit breaker and then each individual module circuit breaker internal. Check for LED status as expected against chart inside the cabinet door.
  • Record unit serial number and service performed in maintenance log.

Service time required for products may vary.  If you have not established a preventative maintenance procedure then please contact American Plating Power to learn more about our onsite service plans.