When your commercial HVAC system fails, shut it off at the thermostat, check the breaker panel, and call a licensed HVAC company right away if you smell gas, see smoke, or notice electrical issues. Umpqua Sheet Metal, Inc. helps Roseburg businesses respond quickly to protect people, property, and operations. Acting fast in the initial few minutes prevents further damage and keeps everyone safe.

What Should I Do First When My HVAC System Stops Working?
The initial step is to check for immediate safety hazards before touching anything else. Look and listen for burning smells, smoke, sparking, or a gas odor. If any of these are present, shut off the system immediately and evacuate the area.
If there are no safety hazards, try these basic checks:
- Check the thermostat to confirm it’s set correctly and powered on
- Inspect the breaker panel for a tripped breaker and reset it if needed
- Check the outdoor disconnect switch to confirm it hasn’t been switched off
- Replace the air filter if it looks clogged or dirty
- Look at the outdoor unit for debris or obstructions blocking airflow
A clogged filter is one of the most common causes of a sudden shutdown. According to ENERGY STAR, a dirty filter slows airflow and forces the system to work harder, which can lead to expensive maintenance or early system failure, so checking it initially is worth the two minutes it takes.
Should I Try to Fix the HVAC System Myself?
Basic checks like resetting a breaker or swapping a filter are safe to try, but anything beyond that should be left to trained HVAC technicians. Attempting repairs on electrical components, refrigerant lines, or gas connections can be dangerous and may void your system’s warranty.
| Situation | Safe to Try Yourself | Call a Professional |
| Tripped breaker | Yes, reset once | If it trips again |
| Dirty air filter | Yes, replace it | Not applicable |
| Gas odor or smoke | No | Yes, immediately |
| No airflow at all | Check filter/breaker first | If issue persists |
| Sparking or burning smell | No | Yes, immediately |
Our commercial HVAC repair team can walk you through what’s safe to check and what needs a professional before we even arrive.

When Should I Call an HVAC Company for Emergency Service?
You should call an HVAC company as soon as basic troubleshooting doesn’t resolve the issue, or immediately if there’s any safety concern like gas smell, smoke, or sparking. Waiting too long can turn a manageable repair into a costlier emergency, especially during extreme summer or winter temperatures.
For businesses searching for HVAC repair in Roseburg, having a reliable contractor on call means less downtime and faster peace of mind. Our 24/7 emergency HVAC service is available when your system fails outside of normal business hours.
Frequently Asked Questions
How long will it take to get emergency HVAC repair?
Response times vary by provider and demand, but most emergency HVAC companies aim to arrive within a few hours of your call.
Can extreme temperatures damage my business inventory during a failure?
Yes, temperature-sensitive inventory, electronics, or perishable goods can be at risk during extended HVAC outages, so it’s worth having a backup plan for extreme weather.
What information should I have ready when I call for emergency service?
Have your system type, the symptoms you’re noticing, and when the issue started ready to share with the technician for a faster diagnosis.
We’re Ready When You Need Us
An HVAC failure doesn’t have to derail your business. Umpqua Sheet Metal, Inc. has supported Roseburg businesses with dependable HVAC technicians ready to respond when it matters most. Call us today at (541) 672-3888 or email jand@usmhvac.com for emergency HVAC repair.