Resolving an error code 51 on Noritz nrc98-dv lp tankless water heater
I need the full model number of the water heater to pull the manual on it for you.... so far only an error code 61 is shown. sometimes a 6 can look like a 5 on a digital display if it's a 6 then error code 61 is bad fan motor or printed circuit board that sends power to the fan motor.Get me the full model number, we can go from there
Noritz water heater error code 99
MAke sure your flu is not making any 90degree turns. Use 45degree turns only. Error 99 is a combustion error. Usually referring to a blocked/obstructed flu. That said, a flu wit a lot of 90degree turns can act like restrictions to tankless heaters. If the flu i straight and clear, then you have a burner problem. Somethign you want Noritz to deal with.
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