Tankless water heaters, also known as on-demand water heaters, have fewer parts compared to traditional tank water heaters. However, they still have several components that can encounter issues. Here are the common parts of a tankless water heater along with the potential problems that might have you calling Kinsey Plumbing Services for water heater repair in Round Rock, TX.
1. Heat Exchanger
This is the core component where water is heated as it passes through coils or plates. Common issues include scaling, or the accumulation of mineral deposits that can reduce the efficiency of heat transfer, leading to decreased performance and potential damage to the heat exchanger. The heat exchanger can also corrode over time, especially if the water chemistry is aggressive or if the unit is exposed to corrosive elements and water heater maintenance is not implemented regularly.
2. Burner or Heating Element
Responsible for heating the water as it passes through the heat exchanger, common issues encountered by this component involve the ignition system which can prevent the burner from lighting, resulting in no hot water. A tankless water heater is also susceptible to carbon buildup, reducing its efficiency and causing uneven heating.
3. Gas Valve or Electric Element
This regulates the flow of gas or electricity to the burner or heating element. Issues with the gas supply, such as low pressure or a faulty gas valve, can lead to incomplete combustion and insufficient heating.
Problems with the electrical supply, wiring, or electric elements can cause the unit to malfunction.
4. Flow Sensor
Monitors the flow rate of water to ensure that the heater activates when hot water is needed. However, the accumulation of debris or mineral deposits can obstruct the flow sensor, causing the unit to malfunction or fail to activate. Keep in mind that while these components can be repaired, frequent repairs might indicate the need for a water heater replacement.
5. Temperature Sensors
As the name suggests, these sensors monitor the temperature of the incoming water and regulate the heat output accordingly. Malfunctioning temperature sensors can cause the unit to heat water to incorrect temperatures or fail to provide hot water at all.
6. Control Board or Circuitry
Controls the operation of the unit and interfaces with user controls. Water heater installation must be done properly, otherwise, the components like the control board might encounter electrical failure.
7. Venting System
For gas-powered units, a venting system removes combustion gases from the unit and safely vents them outside. However, obstructions in the venting system can prevent proper exhaust, leading to carbon monoxide buildup and potential safety hazards.
Contact Kinsey Plumbing Services at the first sign of water heater troubles.
