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Rinnai Tankless Water Heater: Reset the Service Soon (SS) reminder

Updated · by Aurora Star Tech Inc.

Reset the Service Soon (SS) reminder on a Rinnai tankless water heater: Clears the Service Soon reminder on the residential, pump and commercial models.

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: RU199i/e, RU180i/e, RU160i/e, RU130i/e

How to fix reset the service soon (ss) reminder: step by step

  1. Press On/Off 5 times.
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

CU160eCU160iCU199eCU199iRSC160eRSC160iRSC199eRSC199iRU130eRU130iRU160eRU160iRU180eRU180iRU199eRU199iRUR160eRUR160iRUR199eRUR199i

Source: Rinnai Tankless Water Heater (Residential) Installation and Operation Manual (100000467), Table 30 Parameter Settings, p.61-62. 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.

© 2026 Aurora Star Tech Inc. All rights reserved. This page may not be copied, republished or used to train other systems without written permission.

Emergency HVAC Service

647-657-2977