How to Tell if a Furnace is Going Bad in Santa Cruz, CA; Short Cycling & More

When the temperature drops, your furnace becomes one of the most important systems in your home. But like any piece of equipment, it can develop problems over time and the earlier you spot them, the easier and cheaper they are to fix. Knowing what to watch for is essential in maintaining a healthy heating system. Monterey Peninsula Sheet Metal & Heating would like to share some of the most common warning signs that your furnace might be in trouble.

Unusual Noises

A healthy furnace runs with a steady, quiet hum. If you start hearing banging, rattling, squealing, or grinding noises, it could be a sign of a loose or broken parts, worn belts or bearings and even motor problems. Do not ignore strange sounds they often signal a small issue that can turn into a major repair.

Rising Energy Bills

If your heating costs are climbing even though your usage has not changed, your furnace might be working harder than it should. Possible causes include dirty filters, failing components, or general wear and tear. Signs of reduced efficiency means your system is using more fuel or electricity to produce the same amount of heat.

Weak or Uneven Airflow

If some rooms feel warm while others stay cold, your furnace or air duct could be the problem. Common culprits are the blower motor issues, blocked ducts, or dirty filters. Weak airflow is also a sign your furnace may be nearing the end of its lifespan.

Short Cycling

A furnace that constantly starts and stops before completing a full heating cycle could have a clogged filter, malfunctioning thermostat or an overheating problem. Short cycling puts extra stress on the system and can lead to premature failure.

Strange Smells

While a faint smell of dust burning is normal when you first turn on your furnace for the season, persistent or unusual odors are a red flag. A Metallic, electrical, or burning smells could point to serious mechanical or wiring problems. A sulfur or rotten egg smell could indicate a dangerous gas leak, in that event turn off your furnace and call a professional immediately.

Yellow Pilot Light

If your furnace uses a pilot light, it should burn a steady blue flame. A yellow or flickering flame could mean incomplete combustion, which might produce carbon monoxide. This is a safety hazard that requires immediate attention.

Frequent Heating Repairs

If you are calling for repairs more often than usual, your furnace might be near the end of its service life. In some cases, replacing it may be more cost-effective than continued repairs.

Age of the Furnace

Most furnaces last 15 to 20 years with proper maintenance. If yours is approaching or past this range, keep a close eye on its performance and be ready for replacement.

Emergency Heating Repair, Maintenance, Installation & More in Carmel, Pebble Beach, Seaside, Carmel Valley, Santa Cruz, Hollister, Del Rey Oaks, Marina, Salinas, Soledad, Gilroy, Pacific Grove, Spreckles, Palmdale, Carmel-By-The-Sea & Greater Monterey, California

If you have noticed any of these signs, it is time to have your furnace inspected by a qualified HVAC technician. Addressing small issues early can prevent costly repairs and keep your home warm and safe all winter long. If you need help repair your home’s heating system, contact Monterey Peninsula Sheet Metal & Heating and schedule our services today.