When your furnace won’t start during Reno’s cold winter, you may feel frustrated and uncomfortable. While some heating issues require professional repair, many common problems have simple DIY solutions. At Paramount Heating and Air Conditioning, we’ve guided Reno and Sparks homeowners through furnace troubleshooting. Below are some top DIY fixes to try before calling a heating repair service in Reno or Sparks.

1. Check the Thermostat
A faulty thermostat is a common reason your furnace won’t start. Luckily, it’s easy to check and adjust.
What to Do:
- Ensure the thermostat is set to “heat.”
- Replace the batteries if the display is blank.
- Check if the temperature is set higher than the current room temperature.
Pro Tip:
Consider upgrading to a programmable or smart thermostat for better temperature control and energy savings.
2. Inspect the Furnace Switch
Sometimes, a furnace won’t start because the power switch has been accidentally turned off. Call a professional heating service repair provider in Reno if you feel uncomfortable checking.
Quick Fix:
- Locate the power switch near the furnace (it looks like a light switch).
- Ensure the switch is in the “on” position.
Why It Matters:
Without power, your furnace won’t function, even if everything else is in working order.
3. Check Your Circuit Breaker
A tripped circuit breaker can cut power to your furnace, leaving your home without heat.
How to Fix It:
- Locate your electrical panel.
- Check if the breaker labeled “furnace” is in the “off” position.
- If tripped, reset it by flipping it back to “on.”
Warning:
If the breaker trips again, contact a Sparks HVAC professional to diagnose the problem.
4. Replace or Clean the Air Filter
A dirty air filter restricts airflow and can cause your furnace to overheat, shutting it down.
What to Do:
- Locate and remove the air filter.
- Replace it if it’s dirty or clogged.
How Often to Replace Filters:
Every one to three months, depending on usage and indoor air quality needs.
5. Relight the Pilot Light
For older furnaces with a pilot light, a flame that’s out will prevent your furnace from starting.
Steps to Relight:
- Locate the pilot light assembly.
- Follow the manufacturer’s instructions to safely relight it.
Pro Tip:
If the pilot light won’t stay lit, contact a professional heating repair service in Reno.
When to Call a Professional
If these DIY fixes don’t solve the problem, it’s time to call a heating repair service expert in Reno. Complex issues like gas leaks, faulty components, or electrical problems require professional attention.
Why Choose Paramount Heating and Air Conditioning?
At Paramount Heating and Air Conditioning, we provide fast, reliable heating repair services to Reno and Sparks homeowners. Our licensed technicians offer expert solutions to restore your furnace quickly.
Learn more about Paramount’s Heating Repair Service in Reno & Sparks by clicking the button below!
Final Thoughts
A furnace that won’t start doesn’t always mean an expensive repair. By checking the thermostat, power, and filters, you can resolve many issues yourself. However, if these fixes don’t work, trust the professionals at Paramount Heating and Air Conditioning. We offer top quality heating repair service in Reno and Sparks.
Contact us today for expert heating repair services in Reno and Sparks. Let us help keep your home warm and comfortable!
Gone through all the DIY steps and need emergency Heating Repair Service in Reno or Sparks? Click the button below to schedule an appointment online or call us today at 775-309-4222!

