Commercial VRV Compressor Replacement & AC Repair in Birmingham

Seized Compressor Diagnosis & Acidic Oil Testing

Location: Birmingham, West Midlands

Diagnosing Office AC Fault Codes in Birmingham
A commercial customer in Birmingham recently contacted ACRC LTD because their office air conditioning system had stopped working, with the local controllers flashing a system fault. The specific fault code pointed to an issue with the outdoor inverter PCB or the inverter compressor.

Upon attending the site, our expert A/C technician diagnosed the root cause: the main compressor inside the VRV system had completely seized.

Safe Refrigerant Recovery
Before any mechanical work could begin, a brand-new replacement compressor was delivered to the site. Our engineers safely recovered and weighed out all the existing refrigerant from the system into a dedicated reclaim cylinder, matching the exact charge stated on the unit's data plate.

The Critical "Acidic Oil" Test
When changing a seized compressor, it is absolutely vital to check the oil of the old, failed compressor to see if it has become acidic. If an engineer skips this step and acidic oil is left circulating in the system, it will rapidly degrade the newly installed components, causing the new compressor to fail within 6 to 12 months.

This simple test takes minutes to perform but saves the customer and the engineer a massive amount of money and downtime. ACRC LTD verified that the oil was not acidic before proceeding.

Brazing, Testing, and Commissioning
With the system confirmed clean, the new compressor was professionally brazed into position. The pipework was pressure tested with nitrogen to ensure perfectly tight joints, then put into a deep vacuum before being fully recharged. The system was left up and running, restoring comfort to the office.

Expert Commercial AC Repairs Across the Midlands
ACRC LTD has a dedicated team of engineers with decades of field experience. When our engineers attend your site, you can feel confident that they will diagnose and rectify complex faults correctly the first time.

Located in Leicester but serving Birmingham, the Midlands, and the wider UK—call ACRC LTD today for your ventilation and air conditioning needs. No job is too difficult!