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Get your free estimateLennox HVAC in Santa Clarita, CA | Dalton Heating & Air Santa Clarita
We provide independent Lennox service across Santa Clarita, from Valencia to Canyon Country. What makes our Lennox work different here is simple: we know which models fail during Santa Ana wind events and which ones fail during July heat waves, because we see those failures in clusters every year. That means we stock the right boards and motors before the first 100-degree week, not after. Call (661) 621-3712 for our AC Repair in Santa Clarita, a diagnostic, or system replacement estimate. Marco Benitez and our crew are factory-trained on all nine major residential brands, and we put every price on paper before the first bolt turns.
Why Santa Clarita Residents Choose Us for Lennox Service
Lennox equipment is not like other brands. The Signature Collection and Elite Series units use proprietary communicating controls. If you diagnose one with a generic scan tool, you’re guessing. We don’t guess. Our techs take continuing-education courses on Lennox variable-speed and modulating systems each year, and our trucks carry the proprietary diagnostic tools and firmware updates needed to read actual fault data from an iComfort thermostat or an XC25 inverter board. When a communicating Lennox throws a code, we see the real failure, not a generic hint.
Marco Benitez grew up in East Los Angeles and learned the fundamentals at Los Angeles Trade-Technical College before spending the better part of two decades turning wrenches on residential and light-commercial systems. His crew has run service calls across Santa Clarita for years, from newer builds near Valencia Town Center to older tract homes in Saugus that still have their original R-22 condensers. Price on paper before the first bolt turns – that’s how we work. You’ll get a written repair guarantee on every call, and if the same failure comes back within a year, we return at no charge.
Styles & brands we work with
Common Lennox HVAC Problems We Solve in Santa Clarita
- E228 error codes during Santa Ana winds. The SLP98V modulating furnace uses a low-fire pressure switch. When strong Santa Ana winds backdraft the flue, that switch can stick closed and throw E228. It’s rarely the gas valve. We see this pattern every fall in Canyon Country and Saugus.
- XC25 inverter board failures after heat waves. Variable-capacity compressors like the XC25 run at low speed for long stretches. After repeated 100°F+ cycling and brownout voltage dips, the inverter board gives out. In Valencia and Stevenson Ranch, these failures cluster in July.
- iComfort “system not communicating” lockouts. Early-2000s tract homes in Valencia often have original communicating thermostats that lose RS-485 communication to the air handler. The fix is usually a wiring or firmware issue, not the thermostat itself.
- R-22 evaporator coil leaks at brazed joints. Original Merit line condensers, like the 10ACC, are prone to leaking at the brazed joints. Stevenson Ranch units fed by hard water tend to show this earlier than others.
- Capacitor and contactor failures on first 100-degree days. The first real heat wave every summer brings a wave of failed capacitors across Santa Clarita. It’s the most common no-cool call we run on Lennox Merit and Elite systems.
Lennox Service in Santa Clarita: What Local Conditions Mean for Your Equipment
Santa Clarita’s rapid suburban expansion through the 1980s and 2000s left thousands of homes with HVAC systems installed in a single construction wave. Those systems age out in a single wave too. In Stevenson Ranch and Westridge, the original Lennox and Carrier split systems from the early 2000s fail in clusters each summer. Our dispatch board will show five or six XC21 inverter faults within a few blocks during the first 105°F stretch. We pre-order those boards before the heat hits. That’s not something a generic HVAC shop does, because they don’t run enough Lennox calls in Santa Clarita to see the pattern. We do.
Last August we had a Saugus homeowner on Seco Canyon Road with a 2009 Lennox XC21 that would trip the breaker only on afternoons above 103°F. Our tech found the inverter board capacitors bulged from heat soak and replaced the board with an OEM unit, then updated the iComfort firmware to correct a compressor staging error. The system has held within 1°F of setpoint since, even during the September Santa Ana event.
Lennox Models & Products We Service in Santa Clarita
We service the full Lennox residential lineup. That includes the Signature Collection, the Elite Series, and the Merit Series, along with older R-22 systems still running in Santa Clarita homes. For the communicating controls and variable-speed boards, we install OEM Lennox parts only. Aftermarket boards cannot speak the proprietary protocol, so putting one in a Lennox is a waste of your money. For mechanical failures like capacitors and contactors, we use quality aftermarket parts when they meet Lennox’s voltage and temperature ratings. Our Lennox sales & service page covers the full breakdown of what we stock and what we order. We repair rather than replace when the compressor and heat exchanger test within spec and the OEM parts cost less than half a like-for-like system.
See the difference
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Before
AfterLennox Service Pricing in Santa Clarita
Here’s what Lennox work costs in Santa Clarita right now:
| Service | Typical Range |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
What drives the cost is the part, not the labor add-on. A capacitor replacement runs low. An OEM inverter board for an XC25 runs high. Either way, you get the price in writing before any work starts, and the repair is guaranteed for a full year. If it fails inside that window, we come back at no charge. Call (661) 621-3712 and we’ll send a tech to your Santa Clarita home with a free estimate.
Serving Santa Clarita, CA - Our Local Coverage Area
We’re based in the Santa Clarita area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Lennox HVAC in Santa Clarita
During a Santa Clarita heat wave, your condenser coil has to reject more heat while the outdoor air is already hot. If the coil is dirty or the fan is running slow, head pressure climbs and the system trips. It’s often a dirty condenser coil or a failing outdoor fan motor, not a refrigerant problem. Call (661) 621-3712 and we’ll check it before the next 100-degree stretch.
No. E228 is a low-fire pressure switch fault. Santa Ana winds backdraft the flue and fool the switch. It’s almost never the gas valve. We’ll verify the switch and flue routing before quoting any parts.
Leaking evaporator coil joints are the usual culprit on those original Merit line systems. R-22 is no longer manufactured, so the repair comes down to finding the leak and either brazing it or replacing the coil. We’ll show you the leak site and give you a written repair price before we touch anything.
Yes, when the filter cabinet is matched to the system’s static pressure. A high-MERV filter adds resistance. If the cabinet and ductwork are sized correctly, the XC25 handles it fine. We measure static pressure before recommending any filtration upgrade, so you don’t starve the system. Call (661) 621-3712 for a measurement.
No. We’re an independent Lennox service provider, not manufacturer-affiliated or authorized. That means we call failures as we find them and recommend the repair that fits your budget, not a warranty upsell. We honor Lennox warranties for parts where applicable, but we don’t work for Lennox.
Service Areas Near Santa Clarita
We run Lennox service calls across the Santa Clarita Valley and into neighboring communities. Our Santa Clarita service area covers Valencia, Canyon Country, Saugus, Newhall, Stevenson Ranch, and Westridge. We also provide Lennox service in San Fernando and Lennox service in Castaic, plus Porter Ranch and Sylmar.
Book Your Lennox Service in Santa Clarita Today
Need a Lennox repair in Santa Clarita? Call (661) 621-3712. We answer with a live person, day or night, and we’ll get a tech to your home inside a clear arrival window. Free estimates, written pricing, and a full-year guarantee on every repair.
Written by Marco Benitez, Owner at Dalton Heating & Air Santa Clarita, serving Santa Clarita since 2003.