Ignitor Replacement in San Jose, CA
When your furnace stops producing heat, a failed ignitor is one of the most common culprits – and one of the most fixable. Ignitor replacement in San Jose typically runs between $150 and $350 all-in, parts and labor included, and in most cases we can complete the repair the same day you call. At Crestview Heating & Air California, our Heating & Furnace services put Marcus Feldman in charge of every job directly, which means you’re getting nearly two decades of hands-on HVAC experience – not a dispatcher routing your call to whoever’s available.
If your furnace clicks but won’t light, or kicks on then shuts back down within seconds, call us at (844) 560-6978 for a free estimate. We service ignitors on systems from Trane, Lennox, Goodman, Rheem, and six other major brands, so no matter what’s sitting in your utility closet, we already know it.
Ignitor problems tend to surface fast once San Jose’s rainy season hits and furnaces start running daily after months of sitting idle, which is why choosing the Best HVAC System for Cold Climate in California, CA matters for long-term reliability. Dust accumulation on the burner assembly, moisture that crept in during summer, and general wear from previous heating seasons all accelerate ignitor failure. We see a sharp uptick in ignitor calls every November through February across neighborhoods like Willow Glen, Berryessa, Almaden Valley, and the Cambrian Park area – homes with systems that were perfectly fine in April but won’t fire in November.
For a broader look at what we handle on the heating side, visit our Heating & Furnace in California page.
When You Need Ignitor Replacement
Not every furnace problem is an ignitor problem, but the symptoms below are a strong signal. If you’re seeing any of these, it’s worth having a technician check the ignitor before assuming the worst.
- Furnace won’t produce heat at all. You hear the thermostat click, the system hums, but no warm air comes out. In many San Jose homes with older Goodman or Lennox systems, a cracked silicon carbide ignitor is the first place we check.
- Furnace starts, then shuts off within 30 seconds. This short-cycling pattern often means the ignitor glows, fails to light the burner reliably, and the safety switch cuts the system before a carbon monoxide situation develops. Don’t ignore it – it’s the furnace doing its job, but you still need the fix.
- Clicking sound with no ignition. Some systems use a hot-surface ignitor; others use an intermittent spark ignitor. Either way, repeated clicking with no flame usually points to the ignitor or ignition control module.
- Error code on the furnace display. Modern furnaces flash diagnostic codes. A code indicating “ignition failure” or “failed to ignite” is about as direct a diagnosis as you’ll get. Write the code down before you call – it helps us arrive with the right part.
- Furnace hasn’t been serviced in two or more years. In San Jose’s climate, where furnaces sit unused from March through October, ignitors degrade even without use. Thermal stress from repeated heat-up/cool-down cycles is the number one reason silicon carbide ignitors crack.
- You’ve already replaced the furnace filter and nothing changed. A clogged filter can cause overheating and tripped limit switches, but if the filter is clean and you’re still getting no heat, the ignitor is the next logical suspect.
Our Ignitor Replacement Process
We keep this repair straightforward. Here’s exactly what happens when we show up for an ignitor replacement in San Jose.
- System diagnosis and safety check. Before touching anything, we confirm the thermostat call is reaching the furnace control board, check for any active error codes, and verify the gas supply is on and at the right pressure. We also inspect the heat exchanger visually – a cracked heat exchanger is rare but serious, and we’d rather catch it now than after reinstalling everything. Note: if we find a cracked heat exchanger, we’ll be direct with you about what that means before any further work happens.
- Ignitor inspection and testing. We test the ignitor’s resistance with a multimeter. A working hot-surface ignitor on most residential furnaces reads in a specific ohm range – a reading outside that range confirms failure even if the ignitor looks physically intact. Cracks in silicon carbide ignitors are sometimes invisible to the eye but will still cause intermittent failures.
- Part sourcing and compatibility confirmation. We stock common ignitors for Trane, Lennox, Rheem, and several other brands on our service vehicles. If we need a less common OEM part, we’ll tell you upfront – same-day sourcing from local suppliers is usually possible, but we won’t guess on compatibility to speed up the job.
- Replacement and reassembly. Ignitor replacement is a precise task – the part itself is fragile, and incorrect handling (including touching the surface with bare hands) can shorten its lifespan. We handle it correctly, torque the mounting hardware to spec, and reassemble the burner compartment before testing.
- Full ignition cycle test. We run the furnace through at least two full heat cycles, monitoring ignition timing, burner flame pattern, and supply air temperature at the register. If anything looks off, we keep troubleshooting before we leave.
- Walkthrough and honest next steps. If the ignitor was the only issue, you’ll know it. If we noticed anything else during the job – a flame sensor that’s borderline, a capacitor that’s aging, a flue that needs attention – we’ll tell you what we saw and what we’d recommend, without pressure.
Ignitor Replacement Pricing in San Jose
Ignitor replacement in San Jose costs between $150 and $350 for most residential furnaces. The range is real – here’s what drives it.
| Factor | Typical Price Impact |
|---|---|
| Standard silicon carbide hot-surface ignitor (most common) | $150 – $220 total |
| OEM-specific ignitor for newer Trane or Lennox systems | $200 – $290 total |
| Ignitor + flame sensor replacement (often done together) | $230 – $350 total |
| After-hours emergency service call | Additional charge applies – call for current rate |
| Commercial furnace ignitor replacement | Varies by unit size and access – call for quote |
A few things worth knowing about these numbers:
- Parts and labor are included in the ranges above. We don’t quote a low labor rate and then add a surprise parts markup at the end.
- Many technicians recommend replacing the flame sensor at the same time as the ignitor, since both are low-cost parts and both degrade on similar timelines. We’ll tell you the condition of your flame sensor during the job and let you decide – no pressure either way.
- If the ignitor turns out to be fine and the issue is the ignition control module or gas valve, that changes the scope and the price. We’ll stop and explain before proceeding past the diagnostic.
- Estimates are free. Call (844) 560-6978 and we’ll give you an honest range before we schedule anything.
San Jose’s HVAC market has plenty of operators who quote low and upsell on-site. Our approach is the opposite: tell you what it actually costs upfront, do the work correctly, and let the results speak. That’s how 250+ customers ended up leaving a 4.8-star average – not through a marketing campaign, but through consistent work in the field.
FAQs – Ignitor Replacement in San Jose
How long does a furnace ignitor last?
Most hot-surface ignitors last between 4 and 7 years under normal residential use, though some fail earlier and others run longer depending on how often the furnace cycles and whether it’s been properly maintained. In San Jose, where furnaces run hard for a few months and then sit dormant the rest of the year, the on-off thermal cycling is actually harder on ignitors than steady use would be. If your system is over five years old and hasn’t had the ignitor inspected, it’s worth checking during your next service visit. Call (844) 560-6978 to schedule – the inspection is part of our standard diagnostic visit.
Can I replace a furnace ignitor myself?
Technically, ignitor replacement is one of the simpler furnace repairs – the part swaps out and there’s no gas-line work involved. That said, we’d steer most homeowners away from doing it themselves for a few reasons. The ignitor is extremely fragile; touching the surface with your fingers deposits oils that cause premature failure. More importantly, the furnace needs to be powered down, the gas shut off, and the system verified safe before anyone opens the burner compartment. If there’s a gas pressure issue, a cracked heat exchanger, or a faulty limit switch, a DIY ignitor swap might get the furnace running again while masking a more serious problem. A trained technician will catch those issues. For a repair this straightforward and this inexpensive, the professional route is the right one.
How much does ignitor replacement cost in San Jose?
Ignitor replacement in San Jose runs $150 to $350 for most residential systems, parts and labor included. The exact number depends on the ignitor type, whether the flame sensor needs replacement at the same time, and whether the job is standard hours or an emergency call. For commercial systems, pricing varies by unit size and access conditions. Call (844) 560-6978 for a free estimate – we’ll give you a real number before we show up, not after.
My furnace is 15 years old – is ignitor replacement worth it, or should I replace the furnace?
Ignitor replacement is almost always worth doing on a 15-year-old furnace, assuming the heat exchanger is intact and the system is otherwise functioning. An ignitor is a $150-$350 repair. A new furnace is a $3,000-$6,000+ project. Where it gets more nuanced is if we find other significant issues during the diagnostic – a cracked heat exchanger, a failing inducer motor, or a control board that’s on its way out. In those cases, the honest answer might shift toward replacement. Marcus evaluates these situations in the field and gives you a straight read, not a sales pitch in either direction. If repair is the right call, we’ll say so. If the math genuinely points to replacement, we’ll show you why.
Why San Jose Homeowners Call Crestview for Ignitor Repairs
There’s no shortage of HVAC companies serving San Jose, so the question is what actually differentiates the Best Heating & Furnace in California, CA from another when you’re standing in a cold house at 6pm in January.
Marcus Feldman built Crestview Heating & Air California around a straightforward idea: the person with the most experience should be managing the work, not just the business. After 19 years in HVAC, Marcus still holds the Service Manager role – that’s not a title, it’s a daily function. When something goes wrong on a job or a customer has a question that needs a real answer, it doesn’t get escalated through layers. The buck stops with someone who has nearly two decades of field experience.
That matters on a job like ignitor replacement because the ignitor itself is rarely the whole story. It’s a small part, but getting to it means opening up the furnace, inspecting the burner assembly, checking the heat exchanger, and verifying the gas system is working correctly. A technician who treats it as a 20-minute parts swap and nothing more is leaving a lot on the table. We treat every ignitor call as a furnace health check.
We also hear from a lot of San Jose customers – particularly in neighborhoods like Evergreen, Blossom Valley, and the Rose Garden district – who’ve had frustrating experiences with companies that quoted one price and charged another, or dispatched technicians who couldn’t identify parts on their specific system. We carry parts for Trane, Lennox, Goodman, Rheem, and five other major brands. We’ve worked on older systems and newer ones. If your system was installed in the last 20 years, there’s a strong chance we’ve worked on its exact model before.
And if your furnace fails after hours, we offer Emergency Heating & Furnace in California, CA service. San Jose temperatures don’t drop to dangerous extremes, but nights in the 30s and 40s are uncomfortable enough – especially if there are young children or elderly family members in the home. We’d rather you have a number to call than spend the night under blankets waiting for morning hours.
250+ customers have left reviews averaging 4.8 stars. That’s not a cherry-picked number – it’s the output of consistent work across years of service in this market.
You can explore everything we do on the heating side through our home page, or go deeper on furnace service at our Heating & Furnace in California page.
Schedule Ignitor Replacement in San Jose Today
If your furnace isn’t firing and you’re in San Jose or the surrounding area, don’t wait. Ignitor failure doesn’t get better on its own, and running a furnace through repeated failed ignition attempts can stress other components over time. Call Crestview Heating & Air California at (844) 560-6978 to get a free estimate and schedule your repair. Marcus and the team are ready to diagnose the problem, give you a straight answer on what it’ll cost, and get your system back to full operation – usually the same day.
Written by Marcus Feldman, Owner & Service Manager at Crestview Heating & Air California, serving San Jose.