Furnace & heating
AC repair
Heat pumps
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GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateWhy Henderson Homeowners Choose Lennox HVAC
We provide independent Lennox repair in Henderson, including service and installation across Green Valley to Anthem and the older single-story neighborhoods in between. Our techs have worked on hundreds of Lennox systems here, and we know exactly what the Henderson heat and dust do to components like capacitors, scroll compressors, and the iComfort S30 thermostat. We’re not an authorized Lennox dealer, and we don’t pretend to be. What we offer is deep, hands-on knowledge of Lennox equipment, honest pricing before any work starts, and a 365-Day Done Right Promise behind every visit. Call (775) 257-9022 for Lennox service in Henderson, and a live person will answer, day or night.
Why Trust Meadowsweet Heating and Air Henderson for Your Lennox HVAC?
Luis Serrano, Owner at Meadowsweet Heating and Air Henderson, trained at Los Angeles Trade-Technical College and has spent years working through every generation of Lennox equipment, from early R-22 units still cooling older Green Valley homes to current variable-speed heat pumps. He’s the one who reminds the crew to verify the filter housing seats flush before calling a job done, and to ask whether you have a dog before propping the side gate open. That attention to detail carries into how we handle Lennox systems: we know which model series develops which failure pattern, which parts are worth keeping on the truck, and when a repair is genuinely smarter than a replacement. We use OEM Lennox parts for safety-critical components like gas valves and igniters, and we follow warranty-safe service practices so you don’t lose manufacturer coverage. Every job includes shoe covers, drop cloths, a photo of the clean-up before we leave, and a written price before any work starts.
Styles & brands we work with







Common Lennox HVAC Problems We Fix in Henderson
Lennox builds solid equipment, but every product line has its own quirks. Here are the issues we see most often on Lennox systems across Henderson, and why they happen:
- SLP99V modulating gas valves losing calibration. The Signature Collection SLP99V furnace uses a modulating gas valve that can drift over time, causing short cycling or a “no heat” call in December. Henderson’s dry, dusty air accelerates wear on the valve’s internal seals. We recalibrate or replace the valve, always with an OEM Lennox part because the modulation curve has to match the control board exactly.
- X/C series scroll compressors leaking at the suction line braze joint. The EL17XC1 and XC21 air conditioners use scroll compressors that are efficient but sensitive to vibration at the braze point. In Henderson, where compressors run hard from April through October, that joint can develop a slow refrigerant leak. We pressure-test, braze the joint cleanly, and recharge to factory spec rather than just topping off, which would mask the problem.
- iComfort S30 thermostat communication errors. The S30 is a sharp thermostat when it works, but it drops Wi-Fi pairing and throws false “communication error” codes more than any Lennox control we see. Often the fix is a firmware update and re-pairing, but sometimes a failing transformer in the air handler causes the code. We test both before replacing any part.
- Variable-speed ECM blower motors failing at the 8-10 year mark. The ECM blower in SL280 and SLP98V furnaces moves air smoothly, but dust from Henderson’s dry climate builds up on the control board, and the motor eventually fails. We stock quality aftermarket ECM replacements that match the Lennox specifications, so you don’t wait a week for a part in July.
- ML14XC1 capacitor failures in peak heat. The Merit Series ML14XC1 is an entry-level unit that’s common in 1990s and early-2000s tract homes across Henderson. The run capacitor fails under sustained 105°F load, and the outdoor unit tries to start but can’t. We carry capacitors for this exact series on every truck because it fails the same way on whole streets in a single summer week.
Lennox Parts & Our Repair-vs-Replace Approach
We default to OEM Lennox parts for anything that touches safety or combustion: gas valves, igniters, flame sensors, heat exchangers, and the iComfort S30 thermostat. For non-critical components like capacitors, contactors, and condenser fan motors, we use quality aftermarket parts when they meet or exceed Lennox spec and the OEM part is backordered or out of warranty. This keeps turnaround fast, especially during Henderson’s summer peak when every day without AC Repair matters. Our repair-vs-replace rule is straightforward: we recommend repair on any Lennox unit under 12 years old as long as the compressor and heat exchanger are sound. When a compressor grounds out or a heat exchanger cracks out of warranty, we walk you through the numbers honestly, repair cost against replacement efficiency, because in Henderson the replacement math almost always favors a more efficient system given our long cooling season. Call (775) 257-9022 for an exact diagnosis and written price.
Our Lennox Service Process – Step by Step
- 1
Diagnosis. We start by listening to the system and asking what you’ve noticed. Then we run the Lennox diagnostic sequence from the control board, check refrigerant pressures and electrical draw, and name the specific part and failure before we touch a screwdriver.
- 2
Repair or install. We give you a written price for the repair, or a fixed installation quote for a new Lennox system sized to your actual ductwork and square footage, not a rule-of-thumb guess. Shoe covers and drop cloths go down before we work inside.
- 3
Test. We cycle the system through full heating and cooling sequences, verify airflow, check static pressure, and confirm the thermostat communicates cleanly, including re-pairing an iComfort S30 if needed.
- 4
Warranty and documentation. Every Lennox job is covered by the 365-Day Done Right Promise. We photograph the clean-up before we leave, and we document all parts used and pressures recorded. You get a clear record of what was done and why.
See the difference
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After
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Before
AfterLennox Products We Service & Install in Henderson
We service and install across the full Lennox lineup in Henderson: the Merit Series (ML14XC1 air conditioner, ML180E furnace), the Elite Series (EL17XC1 air conditioner, EL296V high-efficiency furnace), and the Dave Lennox Signature Collection (SLP99V modulating furnace, SL25XPV variable-speed heat pump, XC21 air conditioner). We also work on Lennox HVAC in Winchester, NV and nearby areas, including mini-split heat pumps in single-story homes we see often in converted garages and additions. Our trucks carry capacitors, contactors, flame sensors, and hard-start kits for these specific models, so a repair often happens the same visit.
We Also Service These Brands
Lennox is a significant part of our work, but we’re not a single-brand shop. We also service Carrier and Trane equipment, plus Goodman, Rheem, York, Daikin, Bryant, and American Standard. That matters because Henderson’s housing stock is mixed: some streets have original Lennox units, others Carrier, others a patchwork of replacements, and we also handle Lennox in North Las Vegas. We diagnose whatever is on the pad.
FAQs – Lennox HVAC Service in Henderson
A short-cycling SLP99V is usually the modulating gas valve losing calibration, so the furnace fires at the wrong rate and the control board shuts it down to protect the heat exchanger. Henderson’s fine dust accelerates wear on the valve internals. We recalibrate or replace the valve with an OEM Lennox part, because aftermarket valves don’t follow the same modulation curve. Call (775) 257-9022 and we’ll diagnose it on the first visit.
Yes. The S30 drops Wi-Fi for two reasons we see constantly in Henderson: a firmware version that won’t hold pairing, or a failing transformer in the air handler that sends weak power to the thermostat. We check both, update the firmware if needed, and replace the transformer only when it actually tests bad. We won’t sell you a new thermostat when a $40 transformer is the real problem.
Rarely. A grounded compressor means the motor windings have shorted to the compressor shell, which is not repairable in the field. Once that fails, the unit needs a new compressor or a new system. On a Lennox under 12 years old, we price both and give you our honest recommendation. On an older R-22 system in Henderson, the replacement math almost always points to a new high-efficiency unit with our installed cost between $3500 and $7500. Call (775) 257-9022 for a written comparison.
The most common failure we see on Lennox furnaces in Henderson is cracking at the dimple crimp points on the primary heat exchanger, usually on SL280 and older G26 models. It happens from years of thermal expansion and contraction across heating cycles, and Henderson’s dry air means homeowners don’t always notice until a carbon monoxide check flags it. That’s one reason our furnace tune-up always includes a combustion analysis and a visual inspection of the heat exchanger.
Yes. We service Lennox mini-split heat pumps in single-story Henderson homes, including the ductless indoor units common in garage conversions and sunroom additions. The issues we see most are refrigerant leaks at the flare fittings and condensate drain clogs from dust. We pressure-test the lineset, re-flare fittings when needed, and clear the drain with compressed air rather than chemicals.
Here are the price ranges we honor in Henderson for Lennox work:
| Service | Typical Price Range |
|---|---|
| Lennox AC Repair (capacitor/contactor) | $150 – $650 |
| Lennox Furnace Repair (ignitor/gas valve) | $150 – $700 |
| Lennox AC Installation | $3,500 – $7,500 |
| Lennox Furnace Tune-Up | $80 – $200 |
These are the same ranges we quote whether you call in April or the third week of July. No overtime charge, no seasonal markup. Call (775) 257-9022 for a free estimate on your specific Lennox system.
Book Your Lennox Service in Henderson, NV
If your Lennox system is acting up, or you just want a second set of eyes before Henderson’s next heat wave, call Meadowsweet Heating and Air Henderson at (775) 257-9022. A live person answers, 24/7. You’ll get a written price before any work starts, a technician who knows Lennox by heart, and a home left as clean as we found it.
Written by Luis Serrano, Owner at Meadowsweet Heating and Air Henderson.