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Why Is My Tankless Water Heater Leaking?

It may seem impossible, but tankless water heaters can leak after some years of use. Our experts from Aire One Heating and Cooling, serving North York, Newmarket, Aurora, Keswick, Stouffville, King City, and other surrounding across Southern Ontario, can help with any necessary tankless water heater repair in a city near you. Keep on reading to learn some common reasons your tankless water heater may be leaking.

  1. Improper Venting
    If your water heater’s venting wasn’t done according to the manufacturer’s instructions, then you may start getting condensation inside the water heater itself. Condensation needs to be dealt with by a professional from Aire One Heating and Cooling, or the whole heater can fail.
  1. Improper Water Pipe Connections
    Although most tankless heaters come equipped with relief valves to help drain your system, some don’t have them. When that happens, pressure can build up inside your pipe joints, which leads to leaks in those joints. An expert in HVAC repair in Ontario from Aire One Heating and Cooling can address the leaks and provide you with a relief valve that fits your heater.
  1. Rust or Sediment Inside the System
    If the leak is coming from the main part of the heater rather than an adjacent pipe, then you may have rust or sediment deposits. In time, these will make the leak worse and could damage the heater’s electric components. If rust is detected, you may have to have the entire system replaced.
  1. Hard or Acidic Water Causing Damage
    Hard water contains dissolved particles of lime, calcium or other minerals that can also build up like sediment. These can cause adverse effects to the heat exchanger and lead to both leaks and overheating. Acidic water, meanwhile, can corrode the pipes and make pinhole leaks that grow over time. Acidic water can be combated by neutralizing it if you detect low pH levels.
  1. High Water Pressure and Flow Rates
    High flow and high pressure can always cause leaks, but tankless water heaters are particularly sensitive to this since they require low flow rates for optimal performance. You want to make sure that your pressure’s no higher than 200 kPa and your flow’s at roughly 19 LPM. If it’s too high, a professional in from Aire One Heating and Cooling, serving North York, Newmarket, Aurora, Keswick, Stouffville, King City, and other surrounding areas across Southern Ontario, can help you. Contact us today to schedule an appointment with a certified technician to assist you with your water heater or any of your HVAC needs in Newmarket, Aurora, Keswick, Stouffville, King City, North York and other surrounding areas across Southern Ontario
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