Rinnai Error Code FFF: Maintenance performed marker (Boiler)
Rinnai error code FFF on a boiler means: Maintenance performed marker. It is also called Rinnai diagnostic code FFF.
Homeowner? What Rinnai code FFF means for you
Usually minor Your boiler is reporting: Maintenance performed marker. This code is usually informational or minor. The safe checks below often clear it; call us if it keeps showing up.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
- Look at the pressure gauge on the boiler. If it reads much lower than usual or near zero, or water is leaking, call a technician.
- Outside, make sure the intake and exhaust pipes or vent cap are not blocked by snow, ice, leaves or a nest.
- Check that the boiler gas valve is open (handle in line with the pipe).
- Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does Rinnai error code FFF mean?
Not a fault: FFF is a marker in the diagnostic code history showing that a service provider performed maintenance or service.
Applies to: I-Series Plus boilers — 150K BTU and smaller and 175K BTU and higher (Combi and Solo)
Common causes of Rinnai code FFF
- Entered manually by a technician after servicing the boiler
- Indicates a service event in the code history
Rinnai models that use code FFF
IP060SIP090SIP120SIP150SIP175SIP199S
Other Rinnai Boiler codes
All Rinnai Boiler error codes →
Rinnai code FFF: homeowner questions
What does Rinnai code FFF mean?
Maintenance performed marker. Not a fault: FFF is a marker in the diagnostic code history showing that a service provider performed maintenance or service.
Is it safe to keep using my boiler with code FFF?
Usually yes. Code FFF is normally minor, but if it keeps coming back have it checked.
Can I reset Rinnai code FFF myself?
You can try one reset (power off for 30 seconds, then on). If Rinnai code FFF comes back, the cause is still there and a licensed technician should check it.
Who can fix Rinnai code FFF near me?
Aurora Star Tech Inc. repairs Rinnai boilers in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Homeowner help: Boiler Not Heating: What to Check
Troubleshooting guides
- No heat or some zones cold All brands · Boiler
Source: Rinnai Troubleshooting I-Series Plus Boiler Diagnostic Codes (800000375), p.45. 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.