Rinnai · Water heater
SS Scheduled service reminder
What this code means
A time-based reminder set at installation, indicating it's time for routine maintenance, not necessarily an active fault.
Most likely causes
- Installer-configured maintenance interval reached
What to try first
Push the On/Off button 5 times within 5 seconds to reset the reminder after service is performed.
Good news: this one is often fixable without a service call. If it persists after the steps above, have it looked at.
FAQ
What does Rinnai error code SS mean?
Scheduled service reminder. A time-based reminder set at installation, indicating it's time for routine maintenance, not necessarily an active fault.
Can I fix Rinnai code SS myself?
Often, yes. Push the On/Off button 5 times within 5 seconds to reset the reminder after service is performed.
What causes Rinnai code SS?
The most common causes are: installer-configured maintenance interval reached.
Other Rinnai water heater codes
All Rinnai water heater error codes →
Other water heater brands: Rheem · Ruud · Navien · Noritz · Takagi · A.O. Smith · Bradford White · State / American · Generic electric · Generic tankless
This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.