Expert HVAC & Gas Services for Your Home

Get Your Quote for Tankless Water Heater Repair

Fill the form below to inquire about Gas Services Edmonton's Tankless Water Heater Repair in Edmonton.

We have diagnosed and repaired hundreds of tankless units. These are the failures our clients call about most.

🚿

No Hot Water at All

A complete loss of hot water usually points to an ignition failure, a tripped safety sensor, or a gas supply interruption preventing the burner from firing. Attempting to reset the unit without identifying the cause often leads to the same shutdown within hours. We run a full diagnostic to find the exact failure point and repair it properly.

🔥

Tankless Heater Ignites Then Shuts Off

A burner that lights and then cuts off mid-cycle is usually caused by a failing flame sensor, a venting issue triggering a safety shutdown, or a heat exchanger under stress from scale buildup. This fault gets worse over time and can damage components if left unaddressed. We test ignition, combustion, and venting together to isolate the cause.

⚠️

Tankless Heater Persistent Error Codes

Error codes that return after every reset indicate the system is detecting an ongoing fault, not a random glitch. The code type points toward the affected system, such as flow, combustion, temperature, or pressure, but the real cause requires component testing to confirm. We pull the full error history and test each suspect component under live conditions.

💧

Water Leaking From the Tankless Unit

Leaks can come from a cracked heat exchanger, a failed pressure relief valve, loose connection fittings, or condensate drain issues. Any active leak risks water damage to surrounding areas and can signal a pressure problem that needs immediate attention. We locate the source, assess the damage, and repair or replace the affected component.

🌡️

Tankless Heater Water Temperature Too Low

Water that never reaches the set temperature is usually caused by a heat exchanger heavily coated in mineral scale, a gas valve delivering insufficient pressure, or a failing burner that cannot reach full output. Running the unit harder to compensate accelerates wear on already stressed components. We diagnose which system is limiting output and repair it directly.

🔧

Tankless Heater Flow Sensor Not Detecting Water

A failed or debris-clogged flow sensor prevents the unit from recognizing water movement and keeps the burner from activating, even when hot water is needed. This often presents as the unit doing nothing when a tap is opened. We clean, test, and replace the flow sensor as needed to restore activation.

🔩

Tankless Heater Gas Valve or Pressure Problem

A gas valve that is stuck, worn, or delivering incorrect pressure causes intermittent ignition, incomplete combustion, and repeated fault codes. This is a safety-relevant repair that requires a licensed gas technician. We test gas pressure, inspect the valve, and repair or replace it following all safety and code requirements.

📅

Tankless Heater Not Serviced in Over a Year

A tankless water heater that has gone more than a year without professional service may have heat exchanger scale, inlet filter buildup, and ignition component wear that compound quietly. The risk of a mid-season lockout or error code increases with each season skipped. We assess the full unit condition during a catch-up maintenance visit and address what needs correction.

📊

Gas Bill Higher Without More Hot Water Use

A tankless water heater consuming more gas than usual without any change in household usage is almost always suffering from scale buildup in the heat exchanger, a miscalibrated burner, or a gas pressure issue forcing the unit to run longer cycles to reach the set temperature. These inefficiencies compound over time and increase operating costs steadily. Maintenance restores proper combustion efficiency and brings gas consumption back in line.

Reviews

What Our Customers Say

★★★★★

Actually TSSA certified, unlike the last guy

We had a handyman attempt a fix before calling Gas Services Edmonton and it clearly wasn't done right. Their technician showed proper certification, ran a full combustion test, and explained everything before starting. Should have called them first.

★★★★★

Diagnosed the real cause instead of guessing

The error code on our unit looked serious but the technician recognized it immediately for our specific brand and traced it to a simple flame sensor issue. Fixed within the hour with full testing afterward.

★★★★☆

Thorough work, appreciated the documentation

The repair took a bit longer than expected because they insisted on full combustion testing, but I appreciated the thoroughness. They gave us paperwork for our warranty records too.

★★★★★

Caught a gas supply issue we never suspected

We assumed the unit itself was faulty but the technician traced the problem back to an undersized gas line feeding it. Real diagnostic work instead of just swapping parts and hoping.

★★★★★

Knew our brand's fault codes cold

The technician from Gas Services Edmonton read our unit's specific error code correctly on the first try and had the matching part on the truck. No wasted trip, no guessing involved.

★★★★★

Repair has held up perfectly

Gas Services Edmonton fixed our ignition issue properly the first time. It has been running flawlessly for months now, unlike the quick patch job we got from someone else previously.

Licensed, Insured, and Local

Expert Gas Service You Can Count On

From gas furnaces and fireplaces to pool heaters and tankless water heaters, our certified technicians keep your home safe, warm, and running right.

Contact Us

Let's Get In Touch

Contact Gas Services Edmonton today for expert HVAC repair, installation, and maintenance services in Edmonton area.

Talk to Our Team

Call us directly or send a message using the form, whichever works best for you.

CALL US (587) 805-0530 EMAIL US Click to send a message

Send Us a Message

Contact us! Our conversation stays private.

Protected and Confidential