HVAC problems other technicians can’t solve?
Some failures require more than replacing parts. STG Mechanical specializes in systematic troubleshooting of complex commercial HVAC systems, electrical faults, control problems and intermittent equipment failures.
Request Advanced DiagnosticsVerify the root cause before recommending a repair.
Review
Symptoms, operating conditions, service history and available equipment information.
Diagnose
Electrical, mechanical, refrigeration and control-system testing based on the issue.
Verify
Confirm findings, explain repair options and verify operation after authorized work.
Technical diagnostic work.
Appropriate testing may include electrical control circuits, three-phase equipment, VFD operation, economizer sequences, airflow, refrigeration performance and component interaction.
- Intermittent or recurring failuresProblems that do not present consistently or return after an earlier repair.
- Controls and communication issuesThermostat, sensor, sequence-of-operation and command problems.
- Equipment performance evaluationsUseful findings for repair planning or a technically justified replacement decision.
Technical support for HVAC contractors.
STG Mechanical can be a professional troubleshooting resource for contractors handling a difficult diagnostic issue. The goal is to support the requesting contractor’s work, not compete for their customer relationship.