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Heating Repair in Campbell for Every Kind of System

The short answer

We repair floor furnaces, wall heaters, forced-air furnaces, heat pumps and ductless mini-splits in Campbell. Older heaters get a careful safety inspection, and we tell you honestly when a repair is sensible and when the unit should be retired.

No single heater type covers Campbell. One block might have a modern heat pump next door to a house still warmed by a floor furnace set into the hallway, and a remodeled home across the street with a ductless head in the new primary suite. ExpertFlow HVAC Repair Service repairs all of these in ZIP 95008, about nine miles southeast of our Los Altos base. This page explains how we approach the less common heaters in particular, since they are often the ones other companies hesitate to touch.

Floor furnaces and wall heaters

Floor furnaces sit below a grille in the floor and heat by natural convection, with no ducts and often no blower. Wall heaters do the same from a recessed cabinet. Both are simple, but age catches up with them: pilots that will not stay lit, thermocouples that have worn out, gas valves that stick, and grilles that get hot enough to burn bare feet.

When we service one of these heaters, we clean the burner and pilot assembly, test the thermocouple and valve, check that the vent is intact and drawing properly, and look for rust in the combustion chamber. If the unit is unsafe or the parts are no longer made, we explain that clearly. A ductless heat pump head is a common replacement for a wall heater, since it adds cooling as well.

Forced-air systems

Most Campbell houses with central heat have a gas furnace in a garage, closet or attic. Common heating repairs on these systems include igniter and flame sensor replacement, inducer and blower motor repair, pressure switch faults, and control board failures. We also check duct connections in the attic, since a disconnected run can leave a room cold even when the furnace is working perfectly.

Heat pumps and ductless units

Heat pump heating complaints usually fall into a few groups, each with its own likely cause:

  • House never reaches the setpoint: low refrigerant, a weak compressor, or undersized ducts
  • Outdoor unit covered in frost that does not clear: defrost control or sensor failure
  • Cold air blowing during heating: a stuck reversing valve or thermostat wiring set for cooling-only equipment
  • Electric bills spike in winter: backup heat strips running too often due to settings or a fault
  • Ductless head blinking and shutting off: sensor, board or communication errors between indoor and outdoor units
  • Water dripping from a ductless head: a clogged drain or a unit mounted out of level

Safety first with older gas heaters

Any gas heater that burns indoors needs a sound vent and a clean flame. On every heating repair we test for carbon monoxide at the appliance and inspect the vent path. Signs that something is wrong include soot around the grille or cabinet, a pilot or burner flame that is yellow and floppy, a persistent smell of gas, or a carbon monoxide alarm. If you smell gas, leave the house and call your gas utility from outside before contacting us.

Make sure every home with gas appliances has working carbon monoxide alarms near the bedrooms. They are inexpensive insurance, and California requires them in most homes with fuel-burning appliances.

When to repair and when to move on

Bay Area Air District rules do not require replacing any heater that still works; they apply only when equipment fails or is replaced. For furnaces, Rule 9-4 sets a zero-NOx standard for units manufactured from 2029, so replacements after that date will generally be heat pumps. For many Campbell homes with an aging floor furnace or wall heater, a heat pump is already the more practical upgrade because it also handles cooling during hot valley summers.

We price repairs and replacements side by side when it is close. BayREN and local clean energy providers sometimes offer electrification incentives, and we confirm current ones before quoting.

Around Campbell

Our heating repair work also covers Saratoga, Cupertino, Santa Clara, Sunnyvale and Mountain View. When you reach out, tell us the type of heater, its location and what it is doing, and we will plan the visit accordingly.

More services in Campbell

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What to expect

How a visit goes

  1. Findings you can see

    Meter readings, photos of worn parts and a short written summary come with every diagnostic visit, so you are never asked to approve work on faith.

  2. Options, not ultimatums

    When a repair and a replacement are both reasonable, we lay out what each one involves and let you choose the timing that fits your home and budget.

  3. Straight talk on rules and incentives

    We follow Bay Area Air District appliance rules closely and confirm current BayREN or clean energy provider incentives before mentioning them in a quote.

FAQ

Common questions

Do you repair floor furnaces?

Yes. We service pilots, thermocouples, gas valves, burners and vents on floor furnaces, and we tell you if a unit is unsafe or beyond practical repair.

My wall heater pilot keeps going out. What causes that?

Usually a worn thermocouple, a dirty pilot orifice or a draft problem. We test each and replace the failed part.

What can replace a floor furnace or wall heater?

A ductless heat pump is a common choice because it heats efficiently and adds cooling. A ducted system is possible where there is space for ducts.

Why is my heat pump blowing cold air?

Possible causes include a defrost cycle, a stuck reversing valve or thermostat wiring set up for the wrong equipment. We diagnose which one.

Is it safe to keep using an old gas heater?

It can be if it burns cleanly and vents properly. We test for carbon monoxide and inspect the vent on every heating repair.

Do new Air District rules ban my existing heater?

No. The rules apply only when equipment fails or is replaced, so working heaters can be repaired and used.

Tell Us What Your System Is Doing

Describe the noise, smell, error code or uneven room, and we will set up a visit to find the cause and walk you through your options.

Request Service Call (650) 668-0834
Call (650) 668-0834 Request Service