Rheem Recent Questions, Troubleshooting Help & Support

Factory set to standard should not need to be adjusted, if you have a problem then it will mean that one of the components on the pcb is not working.

Thats because you changed settings,reset

Call Rheem about this. Your service tech is missing something.

The "whisper quiet" blower could have a bad bearing, bad bushing, or the blade might be rubbing against part of the cowling. If rubbing against metal, you might be able to realign where it no longer rubs. Careful, it may be very hot!

Error 11 is ignition failure, or insufficient gas, or defective sensor, dirty combustion parts.Do the yearly required maintenance such as cleaning the combustion parts, and error code will probably be solved.Problem is Rheem does not post service manuals for people to learn how to service their equipment without calling service tech.Copy following link for Rheem troubleshoot resourceshttp://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.htmlThe cost of yearly maintenance will easily eat away the expected yearly savings of $100 for typical family of 4. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

With out more info all I can do is give you this link below. http://www.rheem.com.au/OwnersGuides?category=0&model=148

Google

If it ran for more than 5minutes prior to this problem, then it's probably not the breaker. The water heater is 9000 watts and at 240volts should draw around 37amps. Fuse/breaker should be ~1.25X the current so the breaker amps is around 46, but they don't make that one. So 50 ? The problem is related to the heating elements since that's about the only thing that could gradually trip the breaker. My guess.

replace it with a new one

1 clean flame sensor
2 clean burner YouTube video
3 clean heat exchanger
Start with 1,ect
Rheem website has instructions or call they will e-mail info.

If cold water has good pressure, and you are not on a well ,try turning water Off to water heater,open tap to relieve pressure remove hot side left water line to heater stick long screw driver inside pipe going inside water ,the heat trap is sticking it's rubber flap inside the pipe going in water heater.

It shows that the pilot is alight .