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Rinnai Error Code 610: Combustion fan motor speed fault (Boiler)

Updated · by Aurora Star Tech Inc.

Rinnai error code 610 on a boiler means: Combustion fan motor speed fault. It is also called Rinnai diagnostic code 610.

High severityBoilerAlso Combi BoilerI-Series Plus 150K and smaller · I-Series Plus 175K and higher

Homeowner? What Rinnai code 610 means for you

Call a technician Your boiler is reporting: Combustion fan motor speed fault. The boiler has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

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 610 mean?

Actual fan speed differs from the target speed set by the board, or fan speed is too low (≤20 Hz) or too high (≥500 Hz).

Applies to: I-Series Plus boilers — 150K BTU and smaller and 175K BTU and higher (Combi and Solo)

Common causes of Rinnai code 610

  • Loose, broken, damaged or wet fan wiring
  • No drive voltage from PC Board
  • Debris on blower wheel or fan not turning freely

A technician checks these and 3 other possible causes on site before replacing any part.

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.

Rinnai models that use code 610

IP060SIP090SIP120SIP150SIP175SIP199S

Other Rinnai Boiler codes

CodeMeaning
393Outdoor temperature sensor fault
400Water pressure sensor communication fault
430High or low system water pressure
443Low water cut-off (LWCO) activated
520Gas solenoid valve circuit – flame after valve close
540High exhaust (flue gas) temperature
700PC Board fault
710Gas solenoid circuit – valve position mismatch
720Flame rod fault
7630-10V external control input over-voltage
831Indirect tank call running too long
890Freeze condition detected

All Rinnai Boiler error codes →

Rinnai code 610: homeowner questions

What does Rinnai code 610 mean?

Combustion fan motor speed fault. Actual fan speed differs from the target speed set by the board, or fan speed is too low (≤20 Hz) or too high (≥500 Hz).

Is it safe to keep using my boiler with code 610?

It depends on the cause. The boiler has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Can I reset Rinnai code 610 myself?

You can try one reset (power off for 30 seconds, then on). If Rinnai code 610 comes back, the cause is still there and a licensed technician should check it.

Who can fix Rinnai code 610 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

Source: Rinnai Troubleshooting I-Series Plus Boiler Diagnostic Codes (800000375), p.33. 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 Boiler Repair

647-657-2977