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Rinnai Error Code P: Venturi reset: first screen (Boiler)

Updated · by Aurora Star Tech Inc.

Rinnai error code P on a boiler means: Venturi reset: first screen. It is also called Rinnai diagnostic code P.

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

Homeowner? What Rinnai code P means for you

Usually minor Your boiler is reporting: Venturi reset: first screen. 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 P mean?

Letter P shows on the display when SW2 and SW3 on the PC board are held together during the venturi reset used for code 170. It is the first step; holding both buttons again goes on to PCL.

Applies to: Rinnai I-Series Plus boilers and combis (150K and smaller, 175K and higher)

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 P

IP060SIP090SIP120SIP150SIP175SIP199S

Other Rinnai Boiler codes

CodeMeaning
FUSE24 V fuse defective
GoodGood state (normal)
Green button resetRestore factory parameters
HIGHWater pressure too high
Ignition safety testTest ionization lockout
INFOInformation chapter
PARAParameter chapter
Parameter modeParameter settings menu
PCLVenturi reset accepted
Perf dataPerformance data menu
P XXWater pressure read-out
SERVService chapter

All Rinnai Boiler error codes →

Rinnai code P: homeowner questions

What does Rinnai code P mean?

Venturi reset: first screen. Letter P shows on the display when SW2 and SW3 on the PC board are held together during the venturi reset used for code 170. It is the first step; holding both buttons again goes on to PCL.

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

Usually yes. Code P is normally minor, but if it keeps coming back have it checked.

Can I reset Rinnai code P myself?

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

Who can fix Rinnai code P 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 Diagnostic Codes (800000375), Code 170 step 7 p.13. 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

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