Automation Repair Services in Fresno, CA

What does a Fresno packing house actually do to a variable frequency drive? It coats the heatsink in a felt of field dust, cycles it through cold storage humidity, then washes the room down around it every night for eight months of the year.

IVS Incorporated rebuilds the drives, motors, controllers and operator panels that survive in that environment, and returns them tested and guaranteed.

Fresno's packing houses, hullers and cold storage

Fresno County sits at the heart of the San Joaquin Valley, and its equipment base shows it: fruit and vegetable packing lines, raisin and dried fruit processing, almond and pistachio hulling and shelling, tomato and juice plants, cold storage and refrigerated distribution, and the plastics and corrugated operations supplying containers to all of them.

Add the irrigation industry — pump stations, booster sets, filtration skids and the drives and controllers that sequence them — and you have a region running automation in genuinely unforgiving places. Much of it is older than the people maintaining it. A huller may depend on a drive its manufacturer stopped cataloguing fifteen years ago, and replacing a whole machine to solve an electronics problem is rarely justified.

Dust, washdown and what they do to electronics

Agricultural dust is the quiet destroyer. It is fine, it is everywhere during harvest, and cooling fans pull it straight into enclosures. Once a heatsink is blanketed and fan blades are loaded, a drive can no longer move heat and starts throwing faults that look electrical but are thermal. Settled dust with a little humidity behind it also bridges terminals and connector pins, producing intermittent behavior nobody can reproduce on a bench.

Washdown attacks from the other side, pushing moisture past tired shaft seals into windings and bearings and into connector shells never rated for direct spray. That means insulation degradation, bearing corrosion surfacing months later as noise and vibration, and feedback connections that read fine cold and drop out once the room warms. We open these units, clean them properly, replace what the environment consumed rather than only what failed outright, and address the seals and terminations that let contamination in.

Common faults in a Fresno processing plant

• Motors with water-damaged bearings and windings, arriving with corroded races, degraded insulation and shaft surfaces needing machine work before new bearings and seals will hold.
• Heat-choked VFDs whose real fault is a packed heatsink and a stalled cooling fan, showing up as nuisance overtemperature trips in a huller or dehydrator.
• Encoder and feedback faults on packing, sorting and case-forming axes, where dust ingress into a connector causes position loss and unexplained stops.
• Corroded controller I/O on terminals and backplanes in humid cold storage, producing dropped inputs and phantom alarms that wander around the rack.
• Touch layers worn through on line terminals after seasons of dust abrasion, wet gloves and chemical wipe-downs.

The repair path for a Fresno unit

1. Pull the unit and freight it to Plymouth, Michigan, with a note on what the machine was doing when it quit.
2. Evaluation is free, and we identify the failure down to the component, including the environmental damage behind it.
3. A written quote goes back listing findings, planned work and price, and we wait on your approval to start.
4. We perform the repair, then put the unit through complete functional testing under realistic load.
5. It returns to your plant with a twelve-month in-service guarantee behind the work.

What we service for Fresno operations

• PLC and controller repair spanning processors, discrete and analog I/O, network modules and obsolete rack hardware.
• Drive repair covering VFDs, AC and DC drives, servo and spindle drives, inverters, amplifiers and power supplies.
• Motor repair on AC and DC motors, servo and spindle units, gearboxes and linear actuators, including bearing and seal replacement, rotor balancing, shaft, bearing fit, endbell and keyway machining, and feedback alignment.
• HMI and display service for operator interfaces, panel-mount monitors and touchscreens.

Crews preparing for the next run often start with our guide to PLC troubleshooting and maintenance, then use how to test a servo motor to check packing line axes before the fruit starts arriving.

Reasons Fresno plants keep coming back

• Contamination treated as the fault. Units from dusty, wet rooms are cleaned, resealed and reterminated so the same failure does not repeat next season.
• Machine shop capability in house. Shafts, bearing fits, endbells and keyways are cut here, which matters once washdown has damaged more than a winding.
• Thirty years across the major platforms. Allen-Bradley, Siemens, Modicon, Texas Instruments, ABB, Fanuc, Kollmorgen, Magnetek, Mitsubishi and Reliance among others.
• A firm price first. Free evaluation, a written quote, then testing and twelve months of in-service coverage on the finished repair.

Talk to IVS about your Fresno equipment

Describe the symptom and we will tell you what is likely behind it. Reach a technician at 734-261-8801, or request a quote to get your unit into evaluation.

IVS Incorporated — 750 Junction St, Plymouth, MI 48170 — 734-261-8801. Serving Fresno and manufacturers nationwide.