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Rinnai Tankless Water Heater: Turn controller key beeps on or off

Updated · by Aurora Star Tech Inc.

Turn controller key beeps on or off on a Rinnai tankless water heater: Switches the beep that sounds when controller keys are pressed.

Homeowner with a tankless water heater problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Applies to: Rinnai SENSEI, SENSEI RX/CX and KCM tankless with a controller

How to fix turn controller key beeps on or off: step by step

  1. Press and hold Up and Down together until a beep is heard (about 3 seconds on SENSEI and RX/CX, about 5 seconds on the KCM MC-601-US), then release.
  2. Repeat the same press to turn the beeps back on.
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

If the unit shows an error code, look it up: Rinnai Tankless Water Heater codes

Models

SENSEI

CU160eCU160iCU199eCU199iRSC160eRSC160iRSC199eRSC199iRU130eRU130iRU160eRU160iRU180eRU180iRU199eRU199iRUR160eRUR160iRUR199eRUR199i

SENSEI RX/CX

CX160iCX199iCXP160iCXP199iRX130iRX160iRX180iRX199iRXP160iRXP199i

Source: Rinnai N-Series Residential (100000467) / with Pump (100000508) / Commercial (100000504) / RSC SENSEI (100000773) Installation and Operation Manuals, 5.3.1 p.68; Rinnai KCM Series Manual (U328-0700X04), p.55. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency HVAC Service

647-657-2977