Make sure that there is no interruption in gas supply to the water heater.
Rheem tankless gas water heater code 11.
Close cold water supply valve to water heater.
If water flows steady from hot water taps there is a bleed over in the system not aplicable.
Other solutions may be to clean out the inlet water filter on the water heater or turn down the temperature on the unit.
Often low flow showerheads or fixtures cause the problem so the aerators inside should be removed.
Enjoy the comfort and convenience of continuous hot water on demand with a rheem tankless water heater.
Check for bleed over.
Open hot water taps at fixtures.
The gas type must be according to the rating plate found on the unit.
There must be a proper gas pressure and according to the rating plate.
Not enough water flow to operate.
Http www webstersheating ca websters the heating cooling specialist talks about how to set up the rheem tankless hot water tank.
My rheem tankless water heater will run a minute and kick off putting out the 13 code.
The dip switch on the electronic board must be set for the right gas type.
I unplugged it and now it is giving a 2 13 76 1 codes.
Increase water flow at fixture fixtures.
I have a customer with a rheem pronto natural gas tankless water heater he recently had a c 2 and 11 fault code and the unit would lock out before calling me he was told by rheem it was low gas pres read more.
The rheem eco160dvln3 1 indoor natural gas tankless water the rheem eco160dvln3 1 indoor natural gas tankless water heater can provide up to 7 0 gpm at a 35 temperature rise.
All tankless units have a minimum flow rate which must be achieved before the water heater will start heating water.