Rinnai RUR199e / RUR160e / RUR199i / RUR160i Error 03: Power interruption during bath fill (Water will not flow when power returns)

Tankless water heater · taken from the manufacturer’s manual, pages cited

Warning code03

Power interruption during bath fill means water will not flow when power returns after a shutdown. The manual's first action is: “Press ON/OFF twice.”

Model
Rinnai RUR199e / RUR160e / RUR199i / RUR160i
Display shows
03
Type
Warning code
Source
Manual p. 57

What 03 means

Power interruption during bath fill (Water will not flow when power returns) p. 57

Common causes

  • Turn off all hot water taps. p. 57

What to do

  1. Press ON/OFF twice. p. 57

Before you service the product, read the safety instructions in the manual p. 4.

If 03 is still not resolved

  • Call your gas supplier from a neighbor’s phone. Follow their instructions. p. 1
    “Immediately call your gas supplier from a neighbor ’s phone. Follow the gas supplier ’s instructions.”
  • If you cannot reach your gas supplier, call the fire department. p. 1
    “If you cannot reach your gas supplier, call the fire department.”
Open the manual at page 57 All RUR199e / RUR160e / RUR199i / RUR160i error codes Manual details & download

This page summarises what the manufacturer’s manual says about 03; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Rinnai. Found a mistake? Report an error.