Your Rinnai water heater may not be maintaining a consistent water temperature due to several reasons. It could be due to a faulty thermostat, sediment build-up in the tank, or an issue with the gas supply. Additionally, if your water heater is old, it may not function as efficiently as it used to. Regular maintenance and timely repairs can help in ensuring a steady water temperature.
If you’re still facing issues, the experts at 5 Star Best Plumbing are always ready to assist with any water heater related problems. They can provide a comprehensive water heater replacement guide if necessary, ensuring your appliance operates at its best.