Common causes include mineral scale buildup restricting flow through the heat exchanger, a clogged inlet filter reducing water flow below the unit's activation threshold, a failing temperature sensor, or a gas supply issue affecting burner output. We diagnose the specific cause and restore consistent hot water.

Most homes in Vancouver and the Lower Mainland benefit from annual descaling. Homes with higher hot water use or harder water may need service more frequently. Regular descaling prevents scale buildup that causes error codes, temperature fluctuations, and reduced efficiency.

Often, yes. Many tankless units require a higher BTU gas supply and specific venting configurations that differ from traditional tank water heaters. We evaluate your existing gas line capacity, venting, and electrical supply during the estimate and explain any required upgrades clearly before work begins.

If your tankless unit is under 10 years old and the issue is a sensor, flame rod, or control board, repair usually makes sense. For units over 15 years old, those with recurring error codes after servicing, or those with heat exchanger damage, replacement with a newer model often provides better reliability and efficiency. We provide honest options based on condition and total cost.