Rinai tankless water heater code 12
Receiving code 12 within a couple of seconds of unit turning on. Ignition flame comes an and burns for a couple seconds and then goeas out. - reset power, - checked ignition point, clean, -bled gas at unit for a couple seconds, - checked vent, it is clear, - there was some water that drained from cap at top of heater (part of exit vent)
Water Heaters - Rinnai
Answers & Comments
Thermocouple may need replacement.