Get Your Quote for Fix Tankless Water Heater
Fill the form below to inquire about Gas Services Edmonton's Fix Tankless Water Heater in Edmonton.
Fill the form below to inquire about Gas Services Edmonton's Fix Tankless Water Heater in Edmonton.
We have seen every issue a tankless water heater can develop. Here are the faults our clients call us about most often.
A complete loss of hot water usually points to an ignition failure, a tripped safety cutoff, or an interruption in the gas supply reaching the unit. When the unit cannot establish or hold a flame, it shuts down automatically rather than running in an unsafe state. We test the ignition sequence, gas valve, and safety components to locate the fault and restore normal operation.
Error codes flag a specific fault the control board has detected, but they do not always identify the exact component that caused it. A venting code can reflect a gas pressure issue, and a flow fault can be triggered by a blocked inlet screen rather than a damaged sensor. We interpret the code, test the related components, and confirm the actual cause before completing any repair.
Consistently low water temperature usually means the heat exchanger is struggling, either from mineral scale restricting flow or from insufficient gas pressure limiting the burner output. Left alone, the restriction worsens and the unit eventually shuts down entirely. We test the unit under live operating conditions and address the root cause rather than simply raising the temperature setting.
Hot water that shifts unpredictably during a shower or at the kitchen tap is typically caused by a failing flow sensor, a partially blocked inlet, or a burner that cycles inconsistently. The problem tends to get worse over time as the component degrades further. Our technicians test the flow sensor, inlet screen, and burner operation to isolate and fix the source.
Rumbling, popping, or hissing sounds during operation often indicate mineral deposits vibrating inside the heat exchanger as water passes through. These sounds mean the unit is working harder than it should and that descaling is overdue. We flush the system and inspect the internal components to confirm no structural damage has occurred before the repair is closed.
A burner that fails to light consistently may have a worn igniter electrode, a fouled flame sensor, or a gas valve not opening fully. On older units, the igniter degrades over time and can no longer generate a reliable spark. We inspect and test each ignition component individually and replace only what has actually failed.
A blocked or incorrectly installed exhaust vent can prevent the unit from expelling combustion gases safely, triggering an automatic shutdown as a protection measure. This is a safety concern as much as a performance issue, since a restricted flue can cause combustion gases to back up into the home. We inspect the full venting path, test back-pressure, and verify the termination point is clear and properly positioned.
Water leaking from a tankless unit is usually caused by a failed connection fitting, a cracked heat exchanger from scale buildup, or a deteriorated pressure relief valve that has started to weep. Leaks near electrical components create a compounding risk that worsens quickly. We locate the source, replace the affected fitting or component, and confirm the repair is watertight before the unit is restarted.
A tankless heater that cannot keep up with demand is usually undersized for the household's flow rate, has a scale-restricted heat exchanger reducing output, or has a gas pressure issue limiting the burner's ability to heat water at the required rate. We test the unit under peak demand conditions, inspect for scale, and verify gas pressure to identify the limiting factor.
Our unit kept throwing the same error code every few days and we assumed it needed a full replacement. The technician from Gas Services Edmonton found it was just the flow sensor and had it swapped within an hour. Saved us a lot of money.
We woke up to cold showers and called first thing in the morning. Someone was at our door by early afternoon and had the igniter replaced before dinner. Genuinely relieved by how fast this moved.
Our unit is nine years old so the control board had to be special-ordered, which pushed the timeline back a bit from what we expected. The technician kept us updated throughout and the unit has worked perfectly since it was installed.
I was bracing for a sales pitch toward a new unit but the technician explained our heat exchanger scaling could be addressed with a descale and a minor part swap instead. Gas Services Edmonton could have easily upsold us and did not.
I had no idea our recurring error was actually the control board compensating for a bad sensor for months. The technician walked me through exactly what happened and why, which made the whole repair make sense.
We had a different company out last year for the same complaint and it came back within weeks. Gas Services Edmonton found the actual cause this time and it has been running perfectly since. Wish we had called them first.
Contact Gas Services Edmonton today for expert HVAC repair, installation, and maintenance services in Edmonton area.
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