Heat Exchanger:Check for leaks, scaling, or corrosion. Ensure proper water flow through the heat exchanger.
Gas Pressure:Verify the gas pressure is within the recommended range for the heater.
Flow Rate:MasterTemp heaters require a specific flow rate (ideally around 50 gallons per minute) to operate correctly. Excessive flow can cause condensation and corrosion.
Resetting:If the heater is malfunctioning, try resetting it by turning off the power for several minutes.