Noritz NC380-SV-ASME Owner's Manual

Also see for NC380-SV-ASME: Instruction manual Service manual Installation manual Installation manual

Contents

20Troubleshooting-1Initial OperationUnit does not attempt to ignitewhen water is running.• Check for reversed plumbing or crossed pipes.• Check the water filter. ( p.19)Unit attempts to ignite but failsTemperatureHot water is not availablewhen a fixture is opened.• Are the gas and water supply valves fully open?• Is the water supply cut off?• Is the hot water fixture sufficiently open?• Is the gas being cut off by the gas meter?(Can other gas devices such as stoves be used?)• (For LP) Is there enough gas in the tank?(Can other gas devices such as stoves be used?)• Is the water filter clogged? ( p.19)• Is the power button turned on?• Are the gas and water supply valves fully open?• Is the water temperature setting appropriate? ( p.12 and p.13)• If the water supply temperature is high, it is possible for thetemperature to be higher than the temperature set on theremote controller.• If only a small amount of hot water is demanded, it ispossible for the temperature to be higher than thetemperature set on the remote controller.• If the supply water goes through a solar pre-heatingsystem, it is possible for the temperature to be higher thanthe temperature set on the remote controller.The water is too hot.• Have you allowed enough time for the cold water in thepipes to drain out?Water takes time to become hotwhen turning the hot water fixture.No water is available whena fixture is opened.• Is the water supply cut off?• Is the heater frozen?The hot water is not the correcttemperature.• Is the hot water fixture sufficiently open?• Reset unit and try again. There may be air in the gas line.• Have a professional check the gas supply pressure.(Continued)• Are the gas and water supply valves fully open?• Is the water temperature setting appropriate? ( p.12 and p.13)• If the amount of hot water required is very high, it ispossible for the temperature to be lower than the temp-erature set on the remote controller.Decrease the amount of hot water passing through the unitand the temperature should stabilize.The water is not hot enough.