Heating System Not WorkingDuring Cold Winter Nights
Troubleshoot furnace and heat pump failures in the Las Vegas valley.
- Written price before work
- Local since 2006
$50 off any repair of $250 or more. See specials
- NV License #0000000
- Locally owned since 2006
- Labor guarantee on repairs
- Free replacement estimates
- Background-checked team
Check These First
Common Causes ofHeating System Failure
Run through these safe checks to verify simple power, fuel, or airflow issues before requesting a diagnostic visit.
Incorrect Thermostat Mode
Ensure your thermostat is set to Heat with the temperature setpoint higher than current room temperature. Check that batteries are functioning.
Clogged Air Filter
A clogged filter restricts airflow over the heat exchanger, causing internal temperature limit switches to trip and shut off heating cycles.
Heat Pump Defrost
In cold weather a heat pump pauses to defrost its outdoor coil, and the air can feel cooler for a few minutes; that is normal.
Tripped Circuit Breaker
Both gas furnaces and electric heat pumps rely on breaker power for blowers and controls. A tripped switch cuts off all heat operation.
Blocked Exhaust Vent
Gas furnace flues vent combustion gases outside. Debris or obstructions trigger safety pressure switches that prevent ignition.
Dirty Flame Sensor
A dirty flame sensor can make the furnace shut off a few seconds after it lights because the control board does not detect the flame.
Step-by-Step Guide
Four Safe Steps toCheck Your Heating System
Follow this basic safety process to check your thermostat, filter, and power settings without touching gas or electrical lines.
Check Thermostat Settings
Set system mode to Heat, raise setpoint five degrees above current room temperature, and verify display power.
Examine the Air Filter
Inspect return filters for heavy dust. Replace restricted filters to allow proper air movement over heating elements.
Verify Power Switches
Check the main panel breaker and the electrical toggle switch mounted on or near your indoor unit cabinet.
Check Vents and Returns
Make sure supply vents and return grilles are open and not blocked by furniture or drapes throughout your home.
Gas Odors and Carbon Monoxide Safety Rules
If you smell gas, leave your home immediately. From a safe place outside, call 911 and Southwest Gas. Do not touch light switches, thermostats, or anything that could spark. If your carbon monoxide alarm sounds, evacuate all occupants right away and call 911 from outside. Never attempt to relight pilot lights or bypass system safety controls.
Professional Service
What Our Technician Does on This Call
Our heating diagnostics follow clear safety guidelines to locate failures and restore warmth to your home.
Find the Cause: We test electrical limits, ignition sequences, and safety switches to identify why your heating system stopped working.
Show What Failed: Our technician points out the failed component, explaining its function and why the system shut down.
Written Price Before Work: You receive a clear flat-rate price in writing before any repair work begins, with no unexpected additions.
The Repair and a Test: We replace failed components and check that the system heats properly before leaving your home.
Common Questions
Questions About Heating Failures
Find straightforward facts about furnace and heat pump repairs in the Las Vegas valley.
Why does my furnace blow cold air instead of warm air?
A furnace blowing cold air can mean the fan is running but the burners failed to light or locked out after an airflow restriction raised temperatures inside.
How do winter freezing temperatures affect heat pump operation?
About ten nights a year fall to freezing in Las Vegas. Heat pumps automatically initiate defrost cycles to clear outdoor frost, during which supply air may feel temporarily cooler.
Why does my furnace attempt to ignite three times then shut off?
Many furnaces try a few times to establish a flame. If a dirty flame sensor or broken igniter stops ignition, the board locks out for safety.
Should carbon monoxide detectors be tested when heating fails?
Yes. According to the CPSC, carbon monoxide alarms belong on every level of the home. Fuel-burning heating equipment should be inspected every year.
Is it safe to reset my furnace multiple times?
No. Resetting a furnace repeatedly can allow unburned gas to build up or cause repeated overheating of the heat exchanger, leading to cracked metal components.
Restore Warmthto Your Home
Schedule furnace or heat pump service across the Las Vegas valley.
If your heating system fails during a winter freeze, call us directly for evening, weekend, and holiday emergency service.
