Gas Tankless hot Water heater repair service Dundas, Hamilton professional troubleshooting, descaling maintenance, emergency TSSA repairs
Tankless Water Heater Repair Dundas, Hamilton Areas | Same-Day Service Burlington, Oakville , Mississauga Ontario.
If you need tankless water heater repair in Dundas Hamilton, Ontario, our licensed HVAC technicians provide fast, reliable, and professional tankless water heater service, maintenance, descaling, and emergency repair across Dundas and surrounding GTA communities.
905-403-9914
We proudly serve Dundas, Hamilton, Ancaster, Westdale, Greensville, Waterdown, Flamborough, Rockton, Carlisle, Freelton, Mount Hope, Stoney Creek, Burlington, Oakville, Brantford, Cambridge, Milton, and surrounding Hamilton, Halton, Brant, and Niagara Region communities.
Tankless Water Heater Repair Dundas & Hamilton
We provide complete tankless water heater repair in Dundas, Hamilton, ON, including:
- Tankless water heater not heating water
- No hot water tankless system repair
- Inconsistent water temperature repair
- Low water pressure from tankless unit
- Error code diagnostics and repair
- Ignition failure repair
- Flame failure issues
- Scale buildup and hard water damage repair
- System shutdown or lockout issues
- Gas supply or combustion problems
- Water flow sensor replacement
- Heat exchanger cleaning and blockage repair
- Leak detection and repair
- Tankless water heater maintenance and diagnostics
Common Tankless Water Heater Error Codes We Repair
Our licensed technicians regularly diagnose and repair tankless systems displaying:
- Ignition failure and combustion errors
- Overheating protection shutdown
- Flow sensor or water flow errors
- Gas pressure and gas supply faults
- Exhaust vent blockage warnings
- Mineral buildup and descaling alerts
- Flame loss or unstable flame errors
- Temperature sensor failures
- Circuit board and control panel faults
- Heat exchanger protection codes
If your unit is displaying an error code, we provide fast, same-day tankless water heater troubleshooting and repair throughout Dundas, Hamilton, Ancaster, Waterdown, Flamborough, Burlington, and surrounding communities.
Tankless Water Heater Brands We Service
Our experienced technicians repair and maintain every major tankless water heater manufacturer, including:
- Rinnai
- Navien
- Rheem
- Noritz
- A.O. Smith
- Bosch
- Takagi
- Bradford White
- John Wood
- Paloma
- NTI
- IBC
- HTP
- Viessmann
Whether your unit requires diagnostics, repairs, maintenance, or replacement, our team has the expertise to restore reliable hot water quickly.
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Emergency Tankless Water Heater Repair (24/7 Service)
Hot water emergencies can happen anytime. We provide 24/7 emergency tankless water heater repair throughout Dundas, Hamilton, Ancaster, Waterdown, Flamborough, Burlington, and nearby communities.
Whether your tankless system has completely shut down, stopped producing hot water, developed a leak, or is displaying critical error codes, our experienced technicians respond quickly with fully stocked service vehicles to restore your hot water as soon as possible.
Tankless Water Heater Maintenance & Descaling
Protect your investment and maximize efficiency with professional maintenance services, including:
- Annual tankless water heater maintenance
- Tankless flushing and descaling
- Hard water mineral removal
- Heat exchanger cleaning
- Burner inspection and cleaning
- Water flow optimization
- Performance testing
- Safety inspections
- Efficiency tune-ups
Routine maintenance helps prevent unexpected breakdowns, extends equipment life, improves energy efficiency, and keeps your manufacturer's warranty in good standing.
Service Areas – Dundas, Hamilton & Surrounding Communities
We proudly provide tankless water heater repair throughout:
Dundas, Hamilton, Ancaster, Westdale, Greensville, Waterdown, Flamborough, Carlisle, Freelton, Rockton, Mount Hope, Stoney Creek, Binbrook, Burlington, Oakville, Brantford, Cambridge, Milton, Grimsby, Winona, and surrounding Hamilton, Halton, Brant, and Niagara Region communities.
Why Homeowners Choose Our Tankless Water Heater Repair Services
- Same-day service available
- 24/7 emergency repairs
- Licensed and experienced HVAC technicians
- Repairs for all major tankless brands
- Advanced diagnostics and troubleshooting
- Professional flushing and descaling services
- Honest recommendations with upfront pricing
- Fully stocked service vehicles
- High-quality replacement parts
- Reliable workmanship backed by exceptional customer service
Our goal is to restore dependable hot water quickly while helping your tankless water heater operate safely, efficiently, and reliably for years to come.
The serial number of your Rinnai tankless water heater can be found on the unit’s rating data plate.
There are three formats for serial numbers that we will help decode to find your Rinnai tank age:
Format 1: CD. CA-061205
Format 2: 05. 04-103630
Format 3: 06074363
Legend: The year is GREEN, the month is RED.
Decoding Format 1: BL. CA-061205
This serial number format has been used by Rinnai since 2009.
The year of manufacture can be found using the first letter in the serial number.
The month of manufacture can be found using the second letter in the serial number. Ontario Canada.
RX Series (Newest models):RX130iN / RX130iPRX160iN / RX160iP / RX160eRX180iN / RX180iPRX199iN / RX199iP / RX199eRXP Series (RX Series with built-in recirculation pumps):RXP160iNRXP199iNRUCS & RUS Series: Compact and efficient models designed for standard venting.RUCS75iN / RUCS75iPRUS65iN / RUS65iPRU Series (Condensing Models)Predecessors to the SENSEI line, offering high hot-water output and thermal efficiency.RU80iN / RU80iPRU98iN / RU98iP (Replaced by RU160/RU199 models)RU160iN / RU160iP / RU160eRU199iN / RU199iP / RU199eRUR Series (RU Series with built-in recirculation pumps):RUR160iN / RUR160iPRUR199iN / RUR199iPRL Series (Luxury Non-Condensing)Long-running flagship non-condensing heaters known for continuous hot water delivery.RL75iN / RL75iP / RL75eRL94iN / RL94iP / RL94eRLX94iN / RLX94iPV and VA Series (Value Non-Condensing)Rinnai’s standard-efficiency, entry-level tankless lineup.V53i / V53eV65i (VA65i) / V65e (VA65e)V75i (VA75i) / V75e (VA75e)V75fV94iN / V94iP / V94eOlder Legacy Models (circa 2005 – 2012)Many of the earliest models Rinnai brought into the North American market have since been retired, replaced by the RU and RL lines.RC98HPi / RC98HPeKA75eKA95eR75LSi / R75LSeR94LSi / R94LSeR53i / R53eIf you are trying to find repair parts, need a manual, or are considering an upgrade, tell me:Your model number (found on the unit's rating plate)
Rheem tankless gas water heater repair services Ontario Canada.
Since 2005, Rheem has evolved its Tankless Water Heaters through several major product generations, transitioning from basic non-condensing units to highly efficient, Wi-Fi-enabled condensing and hybrid systems.The main series and model families introduced during this period include:Non-Condensing Gas Series (Early-Mid 2000s to 2010s)Rheem's early lines featured standard efficiency and relied on stainless steel venting.EcoSense® Series: Early eco-friendly models designed for standard domestic use, providing basic on-demand flow.Rheem Classic® / Power Direct Vent (RTG) Series: The workhorse models from the 2010s. Common models include the RTG-64 (6.4 GPM) and RTG-84 (8.4 GPM).High-Efficiency Condensing Gas Series (Mid-2010s to 2020s)These models achieved much higher Uniform Energy Factors (UEF) and allowed for cheaper, easier PVC venting.Rheem Prestige™ Series: High-performance condensing units.Performance Platinum™ Series: High-efficiency indoor and outdoor models (often 9.5 GPM, 199,900 BTU), featuring built-in Wi-Fi EcoNet® compatibility.RTGH Series: Notable super high-efficiency models like the RTGH-SR11i, delivering 11 GPM and highly sought after for whole-home use.Modern Condensing Series (Present)IKONIC™ Series: Rheem's flagship, top-tier super high-efficiency condensing gas tankless line. These models, such as the RTGH-SR11i, include built-in recirculation pumps for instant hot water and full-text digital displays.
ThermaForce™ Series: Designed primarily for serviceability and hard water performance, featuring a patented labyrinth heat exchanger. Electric Tankless Series Rheem expanded into whole-home and point-of-use electric models requiring varying power levels (240V) .Rheem RTEX / RETEX Series: Popular self-modulating electric whole-home models. Common units include the RTEX-04 (point-of-use), RTEX-13, RTEX-18, and RTEX-36.Performance™ Tankless Electric: Compact and point-of-use lines exclusive to retailers like The Home Depot, commonly ranging from 0.5 to 1.0 GPM for sinks and single showers.“Rheem water heaters are known for reliability, serviceability, and strong long-term value... In real homes, installation quality and water conditions often matter more than brand
