Noritz NRCB199DV Owner's Manual

Also see for GHQ-C2801WX-FF US: Instructional manual Installation manual

Contents

35The water appears blueThe bath tub/wash-basin has turnedblue• Coloration to a blue color may be noticed from smalltraces of copper ion contained in the water and fat(furring). However, there are not problems concerninghealth. Coloration of the bath tub/wash-basin can beprevented by cleaning frequently.Frequent water discharge from thedrain pipe.• Condensation forms inside the unit during operationand is discharged from the drain pipe.The Combi Boiler stops burningduring operation.• Are the gas and water supply valves fully open?• Is the water supply cut off?• Is the hot water fixture/faucet 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?)• When the heating supply temperature is too high, the unitwill stop burning.• This is normal. The white smoke is actually steam.White smoke comes out of theexhaust vent on a cold day.The DHW is turbid. • This is harmless. Small bubbles appear as the air in thewater is heated and depressurized rapidly toatmospheric pressure.OtherA small amount of water is dischargedfrom the pressure relief valve.• This is normal. When the Combi Boiler is under highpressure, a small amount of water may be dischargedfrom the pressure relief valve.• There is a possibility that air is leaking from the expansiontank. Contact your installer or a qualified service technician.• When DHW Wait Time is operating, the screen displayoccasionally shows• This is normal. This shows disconnecting the outdoor sensor.( p.16)The Combi Boiler water is leakingfrom the safety relief valve.The screen display shows(The Burner ON Icon is lit withoutDHW Icon or Heating Icon.)..is blinking