Fan, motor and electrical faults
Investigate equipment that will not start, trips, behaves intermittently or has a control fault.
- Motor starters, drives and control signals
- Electrical supply and component condition
- Mechanical load and fan condition
LEV · Defects and investigation
LEV Repair & Fault Finding
Harvtec investigates and repairs Local Exhaust Ventilation equipment faults across Cornwall, including fans, motors, controls and damaged extraction components. Send the system details, symptoms and any examination report so we can agree the repair scope and the competence needed to verify the result.
Understand the defect
Symptoms, history and report findings
Agree the repair
Equipment and process suitability first
Verify appropriately
Repair records and any specialist checks
What Harvtec covers
Follow the problem through the extraction system.
A fan that runs is only one part of the picture. Harvtec brings electrical, mechanical and controls investigation to the equipment, with the appropriate LEV specialist involved where performance or exposure control needs assessment.
Ducting, filters and damaged components
Review reported physical defects and identify suitable repairs or replacement parts for the actual system.
- Damaged ducting, connections and extraction equipment
- Filter condition and replacement requirements
- Component compatibility and access constraints
Poor or changed extraction performance
Review symptoms and existing system information to help distinguish a maintenance defect from a design, use or performance-assessment issue.
- What changed and when the problem started
- Existing indicators and examination findings
- Refer system changes or exposure-control questions for specialist assessment
Examination remedials and follow-up
Scope work from a competent examiner’s report and retain a clear record of the repair and remaining actions.
- Prioritised defects and agreed repairs
- Record parts, settings and work completed
- Arrange appropriate post-repair checks before closing the action
Refurbishment and installation work
Discuss worn assemblies, damaged equipment or installation work as part of an agreed extraction project. Harvtec’s experience spans installation, repair, refurbishment and ongoing maintenance.
- Review the existing equipment and intended use
- Agree mechanical, electrical and controls work
- Identify any design, commissioning or examination requirements
Practical work
Extraction maintenance and industrial fan work.
Extraction and fan work: a custom motor replacement, silica-sand extractor filter replacement and a steel foundry hot air mover refurbishment.
Silica-sand extractor motor replacement
A corroded 16.5 kW motor at a processing and grading plant, an unavailable mount and a custom CNC laser-cut mounting plate to complete the replacement.
Filter cartridge replacement
Real work on a 12-cartridge reverse-jet silica-sand extractor, with before and fitted-cartridge photographs.
Steel foundry hot air mover refurbishment
Casing and transition repairs, motor and bearing work, a new fan impeller and inverter cooling-fan replacement.
How the work moves
From the reported defect to a properly closed action.
Describe the problem
Send the location, process, equipment identity, fault behaviour and report findings. Explain whether the issue is ongoing, intermittent or follows a recent change.
Agree investigation and repair
Confirm safe access, isolation, contamination precautions, parts and any specialist dependencies. Agree repairs from the findings rather than promising a fix before inspection.
Record the result and verification needs
Explain the work completed and any outstanding concerns. Where exposure control has failed, competent assessment of effectiveness is needed; a replaced motor alone is not proof that protection is restored.
Check the guidance
Guidance behind the service.
Suitable work and inspection arrangements depend on the premises, equipment, process and current requirements. These sources support the information on this page.
Questions
Useful answers before you enquire
Can you carry out repairs listed in an LEV examination report?
Send the report findings and equipment information. We will confirm which remedials we can undertake and what specialist work or follow-up assessment is required.
Does a working fan mean the LEV is safe to use?
No. Effective capture depends on the system and process, not just the fan running. Follow the site’s assessment and competent examiner’s advice; a mechanical repair does not itself demonstrate adequate exposure control.
Can you redesign the extraction system while repairing it?
A change to the process or system may need design, commissioning or exposure-control expertise beyond the repair. We identify that separately rather than treating a component replacement as a redesign.
Can you arrange the examination after repair or refurbishment?
Yes. Harvtec can arrange Thorough Examination and Test (TExT) through a competent LEV examiner and help manage the report actions. Any commissioning or performance assessment needed after changes is identified separately.
Talk to Harvtec
What has stopped working or changed?
Share the extraction system, process, symptoms, site postcode and any report findings. We will discuss the next investigation and the appropriate repair arrangements.