Hi guys,

My Rinnai gas heater (REU-53PG) stopped working 2 days ago. I had tried to replace the batteries but still don't work.

I have tried to clean the water inlet filter, and drained out the water multiple times, but still not working.

I cannot seem to easily access the water turbine at the water inlet valve. At my wits' end, anyone knows of any servicing uncle who may be able to repair gas heater? Thank you in advance!

You can just call Citygas 6732 6910

I also face the same problem and I am also using the same model of Rinnai Gas Water Heater.  What do you see on the "Battery Lamp" ?

If you open the hot water tap, does water flows out?

Did you manage to get the problem solved or the heater repaired ?

hi, anyone has resolved this issue? I also face the same issue. Called Rinnai they said this model obselete. 

is this the common issue for Rinnai gas heater? ours just die yesterday. installation done 17 years ago.