Expert Industrial Control Repair Services

On Line Controls, Inc. repairs MicroAir ultra-low air pressure regulator units and motorized potentiometers built by OLC. The service team also tries to repair older OEM ETI motorized potentiometers, including MC, MAC, and ME series units from the 1980s and 1990s, depending on the availability of replacement parts.

MicroAir units less than 10 years old can usually be serviced in one day after the unit is received and tested. Older units may still be evaluated, but repairability depends on condition, serial number, component wear, and parts availability. Return timing also depends on shipping arrangements and approval requirements.

Not all MicroAir units can be repaired. Units with a serial number lower than 7000 are not repairable because the internal body has typically worn out after around 20 years of use. Other older units may be sent in for evaluation so OLC can determine whether repair is practical.

For out-of-warranty repairs, the cost is provided after the unit is received, tested, and evaluated. This allows OLC to identify the actual fault and required work before quoting. A purchase order may be required before repairs proceed, and a cleanup charge may apply if a unit is shipped with oil.

MicroAir units are covered by a three-year manufacturer’s warranty on parts and labor. If the unit is within warranty and the issue qualifies, repair support may be handled under that coverage. Units outside warranty can still be evaluated and quoted before work is completed.

OLC repairs or rebuilds motorized potentiometers built by On Line Controls, Inc. The service department also attempts to repair older OEM ETI units, including MC, MAC, and ME series models, when feasible. Delivery and completion times depend heavily on whether compatible parts are still available.

Include your contact information, company name, return shipping details, purchase order information if required, and a clear description of the symptoms or operating issue. For MicroAir units, include the serial number when possible. Accurate application details help the service team diagnose the problem more efficiently.

Yes. OLC provides technical support for MicroAir units, including troubleshooting assistance, installation guidance, and maintenance advice. Unlimited phone support is included with purchase, helping extrusion teams resolve operational questions and determine whether a unit should be sent in for repair or evaluation.