Furnace and heating repair in Sacramento, CA

Sacramento has hot, dry summers and cool, damp winters with cold mornings. Homes here need both systems to work: the AC gets a long season and the heat runs steadily through the winter months. The usual setup is a gas furnace and a central AC sharing one blower and one set of ducts, often with the furnace in the attic, garage or a closet.

Shared equipment means shared problems. A blower motor or a clogged filter that struggled through the summer will cause trouble in heating mode too, and leaky attic ducts waste heat in winter just as they waste cooling in July.

If your outdoor unit runs while heating, start with the heat pump not heating guide.

Run through these first. They are the only checks that are safe without opening the equipment.

• Set the thermostat to Heat, raise the setpoint a few degrees above room temperature and replace the batteries if it has them.
• Check the breaker panel for a tripped breaker on the furnace, air handler or heat pump. Reset it once. If it trips again, stop and call.
• Find the power switch on or near the furnace or air handler, which looks like a light switch, and make sure it is on.
• Pull the filter. If it is gray and matted, replace it. A clogged filter can make the system overheat and shut itself off.
• Open the supply registers and clear furniture or rugs away from the return grille.
• Clear leaves and debris from around the outdoor unit if you heat with a heat pump.
• Write down any error code on the thermostat or the blinking light pattern visible through the furnace's sight window.

The technician confirms the symptom, reads any fault code and tests the likely parts. For a gas furnace that usually means the igniter, flame sensor, pressure switch, inducer motor, limit switches and blower. For a heat pump it means capacitors, the contactor, the reversing valve, the defrost control and the refrigerant charge.

Expect a diagnosis and a written price before the repair starts. Ask what failed and why, and whether the part is covered by a manufacturer warranty. Ask to see the failed part.

California contractors are licensed by the Contractors State License Board (CSLB), and heating work falls under the C-20 classification. Look up the company with CSLB's Check a License tool before the visit; the California license lookup guide shows what to read on the record. CSLB says C-20 contractors must carry workers' compensation or have a self-insurance certification on file.

A part replacement is a repair. Replacing the furnace or installing a heat pump is a bigger job: CSLB says most alterations require a permit from the local building official and that requirements vary by city and county. If the visit turns into a replacement in Sacramento, CSLB's guidance is to get at least three written bids, and a home improvement down payment should not exceed 10 percent of the price or $1,000, whichever is less.

Repair is the right call for a single failed part on a sound furnace. Think about replacement when the heat exchanger is cracked, when repairs are stacking up, or when the AC is also near the end of its life, since replacing both together saves labor.

SMUD lists $3,000 for converting from gas to a variable-stage heat pump, $2,000 for gas to a two-stage system and $1,000 for an electric-to-electric upgrade, installed through its Contractor Network and subject to available funding.