
As the leading TSSA and CPO-certified technicians in York Region, Vaughan Pool Heater Experts® provides high-precision diagnostics and repair for residential gas pool heaters throughout King City, Nobleton, Lloydtown, Schomberg, and King Township.
In the 2026 service landscape, "friendly service" is secondary to technical accuracy. We specialize in the complex control board issues and hydraulic requirements of modern low-NOx and high-efficiency heaters. Whether you are facing a "Check Ign Control" fault on a Jandy JXi or a "Blower Vacuum Switch Open" (AO code) on a Hayward H-Series FDN, our team arrives with the specific diagnostic tools and OEM parts required for a first-time fix.
Advanced Diagnostics for Top Heater Brands.
We provide Tier-1 support for the industry’s most reliable pool heaters:
Sustainability & Asset Longevity.
Replacing a leaking heat exchanger or an ignition control module is a precision operation that can extend the life of a high-quality unit by 5–7 years. In an era of rising equipment costs, we prioritize restoring your existing asset to its peak thermal efficiency (82%–84%) rather than recommending premature replacements. From Hayward thermistor replacements to clearing error faults on Jandy systems, we ensure your system meets all Ontario safety and environmental standards.
King City Service Hub: ⚡ Call 289-963-2507 ⚡
💥 Vaughan 💥 Richmond Hill 💥 Newmarket
💥 Markham 💥 Stouffville 💥 King City 💥 Aurora
💥 Woodbridge 💥 Nobleton

JXi & LRZ Advanced Troubleshooting
As King City’s Jandy specialists, we provide expert resolution for the "Fault-Check IGN Steps" sequence and "Sensor Fault" errors common in Jandy JXi and LRZ heaters. Our 2026 service protocol includes high-accuracy testing of the VersaFlo™ integrated bypass and manifold pressure adjustments. We ensure your Jandy system’s sophisticated electronics are calibrated for the specific hydraulic demands of your pool
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⚡ Call 289-963-2507 for Jandy Expert Repair ⚡

Hayward H-Series FDN & ED2 Technical Support
Vaughan Pool Heater Experts® provides TSSA-certified diagnostics for Hayward Universal H-Series FDN and ED2 models across King City. We specialize in resolving critical system failures, including IF (Ignition Failure), CE (Communication Error), and AO (Blower Vacuum Switch) codes. Our technicians perform precision heat exchanger replacement and gas pressure calibration to restore OEM thermal efficiency.
⚡ Call 289-963-2507 for Hayward Technical Service ⚡
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👉👉👉 HAYWARD HEATER SERVICE CALL
For Hayward pool heater service in, King City, ON · L7B and L0G.

Raypak Digital & AVIA Engineering Excellence
Vaughan Pool Heater Experts® delivers specialized service for Raypak Digital (206A-406A) and the high-efficiency AVIA model in King City and Nobleton. We focus on industrial-grade repairs, including NiTek heat exchanger protection, LCD control board replacement, and pilot-to-spark conversion.
Our technical team performs comprehensive safety checks and combustion analysis to prevent premature component failure.
⚡ Call 289-963-2507 for Rheem Service ⚡
Rheem Pool Heater Repair Holly Park, King City
In Ontario, pool heater repair is a regulated trade that demands high-level technical compliance. Vaughan Pool Heater Experts® operates with full TSSA (Technical Standards and Safety Authority) and CPO (Certified Pool Operator) credentials, providing a dual level of safety and precision that uncertified handymen cannot legally offer.
Why TSSA Certification Matters:
A pool heater is a complex gas appliance. Under Ontario Regulation 212/01, only TSSA-certified technicians are authorized to break the seal on a gas line or modify combustion components.
TSSA licensing ensures:
The CPO Difference in King City.
While TSSA covers the gas side, our CPO (Certified Pool Operator) designation focuses on the water chemistry and hydraulics. Improperly balanced water is the #1 cause of heat exchanger pitting and copper erosion. Our dual-certified approach ensures that when we repair your Jandy JXi, we also analyze your flow rates and chemical bypass setups to prevent the same failure from recurring.
Protect your investment with certified technicians.
⚡ Call 289-963-2507 for Expert Service ⚡

Attempting DIY repairs or hiring an uncertified technician for a gas pool heater poses significant risks to your property and family. In King Township, local safety codes and insurance policies strictly require TSSA-licensed intervention for all gas-fired appliances.
Don't risk a "Red Tag" or a safety hazard. Always verify that your technician carries a valid TSSA Fuels Safety certificate.
⚡ For Certified Safety in King City, Call 289-963-2507 ⚡
In Ontario, if an Enbridge technician or a certified gas fitter identifies a safety hazard with your pool heater, they are legally required to issue a TSSA Red Tag (Warning Notice). This is not just a suggestion; it is a legal enforcement of the Ontario Fuel Safety Code.
Types of Red Tags
How do we clear your infraction?
As a TSSA-certified expert in King City, Heating Service 4 Less® specializes in resolving Red Tagged equipment. Whether the issue is improper venting on a Hayward ED2 or a gas valve failure on a Raypak Digital, we provide the necessary repairs and file the legal clearance paperwork with the utility provider to restore your service.
Received a Red Tag? Do not attempt to restart the unit. Our team provides priority diagnostic service to ensure your system is brought back to Provincial Safety Standards.
⚡ Call 289-963-2507 for Red Tag Clearance & Repair ⚡

Vaughan Pool Heater Experts® provides priority on-site repair and TSSA-certified diagnostics across the following King City and King Township neighbourhoods.
We are familiar with the specific high-capacity heating requirements of the estate homes in these communities:
Rapid Response for York Region L7B & L0G
Whether your system is located in a high-density development or a private rural estate, our service vehicles are fully equipped with OEM parts for Hayward, Jandy, and Raypak units to ensure a single-visit resolution. We understand the unique water pressure and gas supply configurations common in King Township’s luxury properties.
Serving Postal Codes: L7B, L0G 1J0, L0G 1T0.
⚡ Local King City Dispatch: 289-963-2507 ⚡

Annual maintenance is no longer just about vacuuming out spider webs. Modern high-efficiency heaters like the Jandy JXi and Raypak AVIA require precise calibration to maintain their 83%+ thermal efficiency ratings.
Our TSSA-certified King City Maintenance Protocol includes:
The Result: Zero Downtime.
Homeowners who schedule their TSSA-certified spring startup in April or May reduce the risk of mid-summer system failures by 85%. Don't wait for an error code to appear when the pool is full of guests.
⚡ Book Your 2026 Inspection: 289-963-2507 ⚡
In Ontario’s HVAC and pool industry, technical authority is defined by the TSSA G2 Gas Technician license. This certification is the "gold standard" for residential service, legally authorizing a technician to work on gas-fired equipment up to and including 400,000 BTUH.
Why is this the Residential Ceiling?
Almost every leading high-performance heater—from the Hayward H400FDN to the Jandy JXi400 and the Raypak AVIA 400—is engineered exactly at the 400,000 BTUH limit. This is the maximum capacity permitted for standard residential gas meters and G2-certified service.
When you hire Vaughan Pool Heater Experts®, you are getting a specialist who:
Don't trust your 400k BTU investment to an under-qualified "handyman." Demand a G2 Professional.
⚡ King City G2 Licensed Service: 289-963-2507 ⚡

Gas Fireplace Annual Service
As the seasons change and the weather gets colder outside, it's a wonderful opportunity to perform your yearly maintenance. This way, you can keep your gas fireplace insert working smoothly and enjoy its warmth for many years to come!
We provide dependable maintenance services in King City to help your gas fireplace run smoothly. Don't hesitate to give us a call today to set up your appointment!
We are truly happy to offer a wide range of gas fireplace services tailored just for you. Whether you need expert repairs, detailed cleaning, or regular maintenance, our friendly team is here to help you every step of the way. With many years of experience working with popular brands like Majestic, Kingsman, Insta Flame, Napoleon, Valor, Heat N Glo, and others, we're dedicated to keeping your fireplace running smoothly and creating a cozy, welcoming atmosphere in your home. Additionally, we provide pool heater repairs and other heating services in King City, ensuring your home stays warm and comfortable throughout the year.
Give Vaughan Pool Heater Experts® a call today at
(289) 963-2507—you'll be happy you did!
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⚡ 289-963-2507⚡
Gas Fireplace Service Holly Park, King City

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Feel free to reach out to Vaughan Pool Heater Experts® online or call us at (289) 963-2507 to schedule your pool heater repair.
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TSSA & Licensing Disclaimer:
All gas-fired pool heater repairs and installations are performed by TSSA-certified technicians in strict accordance with Ontario’s safety regulations. Heating Service 4 Less is a REGISTERED HEATING FUELS CONTRACTOR specializing in residential pool heating systems across the Greater Toronto Area. We prioritize your family's safety by ensuring every unit is pressure-tested and combustion-verified for peak performance."
Vaughan Pool Heater Experts® Copyright © 2023 Vaughan Pool Heater Experts® is part of Heating Service 4 Less - All Rights Reserved.
Don't wait to have it repaired. Call us at 289- 963-2507 to find out about our Premium Same Day Hayward, Jandy, Raypak Pool Heater Repair Service available in North York, Vaughan, Woodbridge, Thornhill, Maple, Nobleton, Newmarket, and Aurora