Rinnai RUR199e / RUR160e / RUR199i / RUR160i Error 05: By-Pass Flow Control

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

Warning code05

By-Pass Flow Control error occurs when resistance values of the by-pass flow control are measured and abnormal. The manual's first action is: “Replace By-Pass flow control device.”

Model
Rinnai RUR199e / RUR160e / RUR199i / RUR160i
Display shows
By-Pass Flow Control (05)
Type
Warning code
Source
Manual p. 57

What 05 means

By-Pass Flow Control p. 57

Common causes

  • Measure resistance values of the by-pass flow control.* p. 57

What to do

  1. Replace By-Pass flow control device. p. 57

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

If 05 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.”

This page summarises what the manufacturer’s manual says about 05; 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.