Troubleshooting for abnormalities due to Scale Build-up C1# If the alarm code “C1#” is flashing on the display window, it means there is scale build-up in the heat exchanger. Damage to the water heater due to scale build-up is not covered by the water heater’s warranty. To prevent damage to…
An error code 72 indicates a Flame Rod circuit abnormality. This error is triggered when the Flame Rod detects a flame before ignition (detection of flame when no flame is present). For further technical assistance call 866-766-7489 or use our Contractor Locator to find a local service representative.
An error code 70 indicates a Circuit Board Abnormality. Disconnect the electrical power, then reconnect electrical power to the Unit to reset the system.If the Circuit Board abnormality continues, replace the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a local service representative.
An error code 66 indicates a Bypass Water Servo abnormality. Please verify that the Bypass Water Servo is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a…
An error code 65 indicates a Main Water Servo abnormality. Please verify that the Main Water Servo is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a…
An error code 63 is recirculation abnormality. Please verify that the recirculation pump connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. If the wire harness is properly connected, there might be an issue with either the recirculation pump or the circuit…
An error code 61 indicates a Fan Motor abnormality. Please verify that the Fan Motor connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. The heater has certain RPM (rotations per minute) ranges it expects the fan to spin at during different…
An error code 42 indicates a Water Flow Sensor (Recirculation) abnormality. This error is triggered when the system cannot maintain stable recirculation mode. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a local service representative.
An error code 35 indicates a Thermistor – Exhaust abnormality. Please verify that the Thermistor – Exhaust is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor Locator to find a…
An error code 33 indicates a Thermistor – Heat Exchanger Outlet abnormality. Please verify that the Thermistor – Heat Exchanger Outlet is securely connected to the Wire Harness, and that the Wire Harness is properly connected to the Circuit Board. For further technical assistance call 866-766-7489 or use our Contractor…