Tankless hot water heaters are often touted as low-maintenance appliances when compared to tank units. While this is true, the tankless device will still need some repairs on occasion. This is true if you notice a problem with the hot water supply. Keep reading to learn more about why this might happen and also what your plumber will do to fix it.
The burners on your tankless unit will work similarly to the ones on a standard water heater. However, when it comes to a tankless system, the burners will turn on and off more often. They are also more exposed than in a tank unit. The exposed nature of the burners means they are more likely to clog with debris. The debris may be from dirt and dust in the air or from corrosion. Corrosion is an issue if the system is leaking or if condensation is building extensively within the device.
When the burners become clogged, they can no longer burn gas efficiently or supply consistent heat. This results in a reduction in hot water coming out of your faucets.
To fix this issue, your plumber will investigate the burners to make sure they are clear of all debris. If corrosion is noted, then a leak assessment is also necessary. Many leaks can be stopped by simply tightening fittings within the system. This is especially true when it comes to the nut on the main water supply line. The flow sensor and the hot water release valve may also need to be tightened.
Poor Water and Gas Flow
If your unit has always had a hard time keeping up with demand, then this may mean that it was not set up properly. Specifically, if water flow and gas flow were not adjusted properly, then the heater may not be running efficiently. So, your plumber will investigate the cold water inlet pipe to make sure that it is the correct size for the unit. A larger diameter pipe may be needed and the flow control unit may also be adjusted.
When it comes to gas flow, this can affect the efficiency of the burners. Poor gas supply means inefficient burners that create minimal heat. This translates to a system that cannot heat water well. So, your plumber will need to assess the volume of gas that is able to move through the unit. This can be accomplished by testing pressure at the gas supply line. If pressure is not high enough, then a new release valve may be installed. Also, your local gas company may be contacted to complete a leak assessment.
Contact a technician for more information about tankless water heater repairs.Share