What owners should verify between professional service visits.
What to review
- Keep the unit visible and accessible.
- Check service tags, damage, pressure indication and tamper condition.
- Use the correct extinguisher type for the hazard.
- Only attempt first response when it is safe and an exit remains available.
When to stop and call a professional
Stop using equipment or a circuit when there is heat damage, smoke, burning odour, sparking, repeated protective-device operation or electric shock sensation. Do not open energized equipment unless you are qualified and authorized to do so.
Emergency: If there is active fire, smoke, gas leakage or immediate danger, leave the area, warn others and contact the local emergency service. A website checklist is not an emergency response service.
This guide is educational and does not replace a site-specific inspection, licensed repair or competent-authority direction.