Sunol winters are mild compared with much of the country, but cool, damp nights in the valley still make a working heater important from late fall into spring. If your furnace or heat pump has gone quiet, smells strange or simply cannot keep the house warm, ReliableFix can track down the problem and repair it.


When Your Heater Is Asking for Help

Heating trouble rarely shows up all at once. Pay attention to these patterns:

  • The blower runs, but the air coming out feels lukewarm or cold
  • The furnace tries to light several times before it stays on
  • You hear squealing, banging or scraping from the equipment
  • A burning dust smell lingers well past the first few minutes of the season
  • The ignition behaves differently than usual
  • Some rooms never reach the set temperature

If you ever smell gas, leave the home and contact your gas utility right away before calling for repairs.


What Happens During a Heating Repair Call

  1. Listening first. We ask how the system has been acting and check the thermostat.
  2. Inspection. The technician examines the burners, igniter, flame sensor, blower, filter and safety switches, or the outdoor and indoor sections of a heat pump.
  3. Testing. Electrical components and airflow are measured so the diagnosis is based on readings, not guesses.
  4. Explanation. You hear what failed, why it failed and what the repair involves.
  5. Repair and check. After the fix, we run the system through a full heating cycle to confirm it works.

Winter Heating in Sunol Homes

Many houses around Sunol were built decades ago, and some have had additions or remodels over the years. Those changes can leave certain rooms on long duct runs that struggle to get enough warm air. Furnaces tucked into garages, closets or crawlspaces may also go months without anyone looking at them, so dust and debris build up quietly.

Because heaters often sit idle through the long, dry summer, the first cold snap is when hidden problems tend to surface. A quick check in early fall can make that first chilly night less of a surprise.


Other Ways We Keep Your Home Warm

Some heating problems point toward a different service:

  • Furnace installation when an aging unit needs frequent repairs
  • Heat pump service for homes that use one system for heating and cooling
  • Thermostat repair when the controls are not calling for heat correctly
  • HVAC maintenance to clean and inspect equipment before winter
  • Indoor air quality solutions for homes that feel stuffy when windows stay closed

Your Heating Repair Questions

Why does my furnace start and then shut off?

A dirty flame sensor, a clogged filter or overheating are common causes. The furnace's safety controls shut it down to protect the equipment, and a technician can find which control is tripping.

Is a burning smell normal when I first turn on the heat?

A light dusty odor for the first few minutes is common after a long summer. If it lasts, smells electrical or keeps returning, turn the system off and have it checked.

How can I tell if my thermostat or my furnace is the problem?

Check that the thermostat has power, is set to heat and is set above room temperature. If the display is blank or the furnace never responds, the thermostat could be the issue, but our technician will test both.

Book Your HVAC Service Today

Tell us what your system is doing and we will help you take the next step with clear communication and prompt support.