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What steps can I take to diagnose a Rinnai water heater that isn’t heating water?


James Thompson, Water Heater Repair Expert

If your Rinnai water heater isn’t producing hot water, start by checking the power supply and gas supply. Ensure the unit is plugged in and the circuit breaker hasn’t tripped. If it’s gas-powered, verify the gas valve is open. Next, inspect the water supply. If there’s no issue, check the thermostat settings. It should be set to a temperature high enough to heat the water. If these steps don’t resolve the issue, it could be a more complex problem like a faulty heating element or a malfunctioning thermostat. In such cases, it’s best to consult a professional.

At 5 Star Best Plumbing, our specialists are well-versed in water heater repair and can help troubleshoot and fix any issues you may be experiencing with your Rinnai water heater.

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