Rinnai Water Heater RU80e

Turn off the electrical power supply

Turn off the gas at the manual gas valve

Turn off the incoming water supply

Ensure the appliance area is clear of combustible materials

Is the burner flame even over the entire surface?

Does the flame burn with a clear, blue, stable flame?

Turn off the electrical power supply by unplugging the power cord or by turning off the electricity at the circuit breaker.

Turn off the gas at the manual gas valve, usually located immediately below the water heater.

Turn off the incoming water supply at the isolation valve immediately below the water heater or by turning off the water supply to the building.

Ensure the appliance area is clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

Has the equipment cooled down before draining the water?

Shut off cold water supply and gas supply.

Turn off the temperature controller.

Turn off the electrical power supply by unplugging the power cord or by turning off the electricity at the circuit breaker.

Turn off the gas at the manual gas valve, usually located immediately below the water heater.

Turn off the incoming water supply at the isolation valve or by turning off the water supply to the building.

Ensure the appliance area is clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

Disconnect electrical power to the water heater.

Close the shutoff valves on both the hot water and cold water lines (V3 and V4).

Connect pump outlet hose (H1) to the cold water line at service valve (V2).

Turn off the electrical power supply by unplugging the power cord or by turning off the electricity at the circuit breaker.

Turn off the gas at the manual gas valve, usually located immediately below the water heater.

Turn off the incoming water supply at the isolation valve immediately below the water heater or by turning off the water supply to the building.

Ensure the appliance area is clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

Turn off and disconnect electrical power. Allow to cool.

Close the water shut off valves. Remove and clean the water inlet filter.

Remove the front panel by removing 4 screws.

Turn off the electrical power supply by unplugging the power cord or by turning off the electricity at the circuit breaker.

Turn off the gas at the manual gas valve, usually located immediately below the water heater.

Turn off the incoming water supply at the isolation valve immediately below the water heater or by turning off the water supply to the building.

Ensure the appliance area is clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

Clean the fan and motor to remove dust and dirt.

Is the area around the appliance clear of cleaning materials and tools?