Step-by-Step Guide for HVAC and Plumbing Issues

Helping You Stay Comfortable, One Step at a Time

When your HVAC or plumbing system stops working, it can disrupt your entire day. Whether your air conditioner has stopped cooling, your furnace won’t start, or you’ve discovered a leak, a few quick checks can sometimes get things back on track. 

This guide walks you through simple troubleshooting steps before calling for service. And if the issue continues, Gillette Heating And Air Conditioning is ready to help—day or night. 

Call our friendly team at (801) 760-7724 or schedule online for fast, dependable repair service across Utah.

Air Conditioner Not Working

If your air conditioner isn’t running or isn’t cooling your home, try these steps before requesting service:

• Check the air filter – A dirty filter can restrict airflow and cause your system to shut down or freeze. Replace it if it looks clogged.
• Inspect your breaker panel – If a breaker has tripped, switch it back on and see if your system starts up.
• Look for ice buildup – If you notice frost on your outdoor unit or refrigerant lines, turn the system off and let it thaw completely. You can keep the fan set to “On” to help with airflow during this time.
• Check the outdoor disconnect – A small switch box is usually near the outdoor unit. Make sure it’s turned on.

If your system still won’t cool after these steps, it’s time to call a professional. Our technicians can quickly and safely diagnose refrigerant leaks, sensor problems, or electrical malfunctions.

Furnace Not Working

When your home won’t heat properly, these steps can help determine what’s going on:

• Replace the air filter – Restricted airflow can cause your furnace to overheat and shut off as a safety measure.
• Check the circuit breaker – If it’s tripped, reset it and see if the furnace restarts.
• Confirm the furnace switch is on – Furnaces typically have a power switch that looks like a light switch on or near the unit.
• Check for diagnostic lights – If you notice blinking lights on the furnace, record the pattern. This pattern can assist a technician in identifying the problem.
• Pay attention to unusual smells – If you smell gas, immediately turn off the gas supply, leave your home, and call your gas company. Do not try to restart your system until professionals have inspected it.

If your furnace still won’t turn on or is blowing cold air, our team can help restore reliable heat safely and efficiently.

Thermostat Not Working (Ecobee and Carrier Infinity Systems)

If your thermostat screen is blank or your system isn’t responding to settings, follow these steps:

• Check for power – Make sure the thermostat is on and connected to your home’s power source or batteries.
• Verify the mode – Ensure it’s set to the correct mode—“Cool” in summer, “Heat” in winter.
• Inspect circuit breakers – Reset them if any are tripped.
• Address uneven temperatures – Make sure all vents are open and unobstructed. Use ceiling fans to improve airflow. If rooms stay inconsistent, ask about a zoning system for better control.
• If there’s no airflow – Check for a clean air filter and ensure outdoor units are clear of debris.
• If heating or cooling isn’t working – Confirm settings are correct, reset circuit breakers, and replace the air filter.

If your thermostat still doesn’t respond, there may be an electrical or communication issue between it and the HVAC system. Our trained technicians can repair or replace the unit to restore comfort control.

Safety Concerns: Gas, Water, or Carbon Monoxide

Your safety is our top priority. If you have concerns about a potential gas leak, water leak, or carbon monoxide issue, it's crucial to act swiftly and follow the correct procedures. 

The following are immediate steps you should take to ensure your well-being:

• If you smell gas:
  • Turn off the gas supply immediately.
  • Leave your home right away and keep a safe distance.
  • Call your gas company to report the issue.
  • If advised, contact Gillette Heating And Air Conditioning for professional inspection once it’s safe to re-enter.
• If you discover a water leak:
  • Shut off the main water valve.
  • Try to locate where the leak is coming from.
  • Keep the water off until a plumber arrives.
  • Call us for prompt plumbing service. Our technicians can locate and repair leaks before they cause further damage.
• If a carbon monoxide alarm sounds:
  • Exit your home immediately and call 911.
  • Do not go back inside until emergency personnel confirm it’s safe.
  • Allow professionals to locate the source of the leak.
  • If your HVAC system is involved, our team can inspect, repair, or replace affected components to prevent future risk.
  • Your safety comes first. If you ever suspect danger, leave the area and call for help immediately.