20 May 2024
 Categories: , Blog

Tankless water heaters are an efficient and modern solution for demanding hot water. Yet, like any appliance, tankless water heaters require regular maintenance and occasional repairs to ensure optimal performance. Recognizing the signs that your tankless water heater needs repair can save you time and money and reduce the inconvenience of unexpected system failures.

Inconsistent Water Temperature

A leading sign that there may be an issue with your tankless water heater is the variation in water temperatures. If you notice that the water alternates between hot and cold without any adjustments on your part, this could signal an issue with the heating elements or a build-up of mineral deposits. 

Reduced Hot Water Flow

A common cause of decreased water flow is sediment build-up within the system, which can obstruct water pathways and reduce efficiency. In some cases, a drop in water pressure could also be due to issues with the heating unit itself, requiring a thorough inspection and potential repair or replacement of components.

Unusual Noises

Tankless water heaters generally operate quietly, so any unusual noises such as clicking, banging, or hissing should alert you to a potential issue. These sounds could indicate a range of problems—from a malfunctioning heating element to loose or damaged parts within the unit. Ignoring these noises can lead to more significant and costly repairs later. 

Error Codes

Most modern tankless water heaters have digital displays showing error codes when something goes wrong. If you notice an error code on your unit, consult the user manual to determine its meaning. While some minor errors can be resolved with a simple reset, more serious issues will require the expertise of a professional repair technician to diagnose and fix the problem.

Water Quality Issues

Discolored water, often rusty or murky, is a clear indication that your water heater needs repair. Corrosion within the tankless unit can lead to contaminated water, which is unpleasant and poses health risks.

Ignition Problems

If your tankless water heater struggles to ignite or fails to stay lit, this is a sign that something is amiss. The issue could be related to the gas supply, the ignition components, or electrical connections within the unit. Since these components involve potentially hazardous elements like natural gas and electricity, it is crucial to seek professional assistance to address ignition problems safely and effectively.

Frequent System Resets

Frequent resets not only indicate a problem but also can increase the wear and tear on your unit, leading to a shorter lifespan. This could be due to a variety of underlying issues, such as thermostat malfunctions, electrical problems, or even an improperly sized system for your household's needs. 

Increased Energy Bills

A spike in your energy bills without a corresponding increase in water usage may suggest your tankless water heater is operating inefficiently. Over time, components can wear out or become dirty, requiring the system to use more energy to heat the water.

For more info, contact a local company like Jim Dhamer Plumbing and Sewer, Inc.