Why does my heater turn on and off so often?

Common causes are a clogged filter tripping the high-limit switch, a dirty flame sensor, an oversized system or a poorly placed thermostat. We test to find which one it is.

Do you repair wall heaters and floor furnaces?

Yes. We clean, test and repair both, and we are candid when a unit is better replaced than repaired.

Why is one bedroom always colder than the rest of the house?

Usually a duct issue, such as a disconnected or undersized run, poor balancing or a missing return. We measure airflow to confirm.

Is a loud bang when the furnace starts dangerous?

It indicates delayed ignition, often from dirty burners. It should be serviced promptly to prevent damage.

Can you repair heat pumps and ductless systems too?

Yes, we repair gas furnaces, heat pumps, ductless systems, wall heaters and floor furnaces.

What areas do you serve around Lafayette?

All of 94549, plus Moraga, Walnut Creek, Pleasant Hill, Concord and Clayton.

Heating Repair in Lafayette, CA

The short answer

Lafayette heating complaints usually fall into a few patterns: no heat at all, heat that cycles on and off, uneven rooms, strange noises or smells, and high bills. We trace each to its cause, whether furnace, heat pump, wall heater or ducts, and explain the fix first.

Cold air pools in Lafayette's canyons and low spots on clear winter nights, and older homes with single-pane windows or uninsulated crawlspaces feel it quickly. When the heat stops working here, the system could be almost anything: a gas furnace in the garage, a gravity wall heater in the hallway, a floor furnace under a grate, a heat pump, a ductless system or a combination of several. EliteFlow HVAC Repair Service repairs all of them across 94549, coming from our base in Danville about 13 miles southeast. This page focuses less on individual parts and more on the comfort problems Lafayette homeowners describe, and what usually sits behind each one.

"There is no heat at all"

Start with the basics: thermostat set to heat and above room temperature, fresh batteries, breakers on, the furnace service switch on, and the furnace door panel firmly closed. For wall heaters and floor furnaces, check whether the pilot is lit.

If all of that checks out, the cause is usually ignition or safety controls. On a modern furnace that might be an igniter, flame sensor or pressure switch. On an older wall heater, it is often the thermocouple or gas valve. On a heat pump, it could be a control board, a defrost failure or a thermostat that was never set up correctly for heat pump operation.

"It keeps turning on and off"

Short cycling has several common causes. A clogged filter or closed registers can overheat the furnace and trip the high-limit switch, which shuts the burners off until things cool down. A dirty flame sensor can make burners light and drop out repeatedly. An oversized system can satisfy the thermostat in minutes and shut off, leaving cold corners behind.

A thermostat placed near a heat register, in direct sun or on a drafty exterior wall can also cause erratic cycling. We look at all of these and test the safety controls to find which one applies.

"Some rooms are always cold"

In Lafayette, uneven heat is often a duct problem. Ducts running through crawlspaces and attics in older homes separate at joints, lose insulation or get crushed. Rooms added in a remodel are sometimes connected with a single small duct that cannot keep up. Rooms over a garage or at the end of a long run can lose heat before it arrives.

We measure airflow at registers and inspect accessible ductwork. Sealing and reconnecting ducts, rebalancing dampers or adding a return can help. For rooms that ducts never served well, a ductless head is sometimes the cleanest solution.

Noises and smells worth paying attention to

Some sounds and smells are normal, and some mean the system should be turned off. Here is a quick guide.

Dusty smell at the first startup of the season: normal, and it should fade within an hour.
Rotten egg smell: possible gas leak. Leave the house and call the gas utility from outside.
Burning plastic or electrical smell: turn the system off at the breaker and call for service.
Loud bang at ignition: delayed ignition, often from dirty burners. Needs prompt service.
Squealing or grinding: worn blower or inducer motor bearings.
Rattling metal: loose panels, ducts or, in some cases, a failing component inside the unit.
Carbon monoxide alarm: get everyone out and call the fire department.

"Our heating bills seem high"

Rising bills without a change in habits often point to a system working harder than it should. Leaky ducts, a clogged filter, a dirty blower wheel, a heat pump relying too heavily on backup electric heat, or a thermostat schedule that no longer fits your routine are all common causes. We check these during a visit and tell you which ones apply.

Older heaters and what comes next

Gravity wall heaters and floor furnaces are still common in older Lafayette homes. Many can be repaired and kept running safely. We inspect venting, heat exchangers and clearances closely because these units have no blower, and we will tell you plainly when one should be retired.

If replacement makes sense, a ductless heat pump is often a natural fit for homes without ducts. The Bay Area Air District rules do not require replacing working equipment and apply only when a furnace or water heater fails or is replaced. Under Rule 9-4, gas furnaces manufactured from 2029 must meet a zero-NOx standard, which in practice points toward heat pumps for replacements after that date. We also serve Moraga, Walnut Creek and Pleasant Hill.

Heating Repair in Lafayette's 94549

"There is no heat at all"

"It keeps turning on and off"

"Some rooms are always cold"

Noises and smells worth paying attention to

"Our heating bills seem high"

Older heaters and what comes next

More services in Lafayette

Related

How a visit goes

Clear findings

Choices, not pressure

Care for your home

Common questions

Tell us what your system is doing