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Rinnai · Rinnai V65iN Value Series Tankless Water Heater

Rinnai Rinnai V65iN Value Series Tankless Water Heater 61 Error Fix: Combustion Fan Failure

The combustion fan (blower) motor has failed or is not reaching the expected RPM. The combustion fan provides forced draft for combustion air supply and exhaust. The control board monitors fan speed using a Hall sensor or tachometer signal from the fan motor. Error 61 means the fan is not spinning, spinning too slowly, or the speed signal is missing. Causes: (1) Failed fan motor — bearings worn, motor windings open. The fan motor can be tested by measurement of motor resistance and by applying voltage directly (only by a technician). (2) Debris or insect nests in the fan or vent system impeding fan rotation. (3) Faulty Hall sensor/tachometer on the fan motor. (4) Wiring fault between the fan motor and control board. Check for obstructions first, then check wiring. The combustion fan is a safety-critical component — without proper combustion air flow, the unit cannot safely burn gas. Replace the fan motor assembly if it has failed.

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Quick Answer

Error 61 on the Rinnai Rinnai V65iN Value Series Tankless Water Heater means: Combustion Fan Failure. The top-ranked community fix is “Test and Replace Combustion Fan Motor Assembly” (hard difficulty, ~90 min, DIY cost: $0). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · water heater

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many water heater repairs can be done safely at home, consider hiring a qualified technician if:

  • The repair involves electrical wiring, gas lines, or refrigerant
  • You've tried the top-ranked fix and the error persists
  • You smell gas, see sparking, or notice water leaking
  • The repair requires specialized tools you don't have
  • Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $300-$450.

Other Rinnai Models with Error 61

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Rinnai RU130iN Sensei Super High Efficiency Plus Tankless Water Heater

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Rinnai RU199iN Sensei Super High Efficiency Plus Tankless Water Heater

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Rinnai RUR199iN Sensei Recirculating Tankless Water Heater

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Rinnai V75iN Value Series Tankless Water Heater

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Other Rinnai Rinnai V65iN Value Series Tankless Water Heater Error Codes

02

Ignition Failure

2 fixes
03

Bath Fill Function Abnormality

2 fixes
05

Blocked Exhaust / Air Supply

2 fixes
10

Blocked Exhaust — Air Pressure Switch

2 fixes
11

No Ignition

2 fixes
12

Flame Failure

2 fixes
14

Thermal Fuse Activated

2 fixes
16

Over Temperature

2 fixes

People Also Ask About Rinnai Rinnai V65iN Value Series Tankless Water Heater Error 61

What does error code 61 mean on a Rinnai Rinnai V65iN Value Series Tankless Water Heater?
Error code 61 on the Rinnai Rinnai V65iN Value Series Tankless Water Heater means: Combustion Fan Failure. The combustion fan (blower) motor has failed or is not reaching the expected RPM. The combustion fan provides forced draft for combustion air supply and exhaust. The control board monitors fan speed using a Hall sensor or tachometer signal from the fan motor. Error 61 means the fan is not spinning, spinning too slowly, or the speed signal is missing. Causes: (1) Failed fan motor — bearings worn, motor windings open. The fan motor can be tested by measurement of motor resistance and by applying voltage directly (only by a technician). (2) Debris or insect nests in the fan or vent system impeding fan rotation. (3) Faulty Hall sensor/tachometer on the fan motor. (4) Wiring fault between the fan motor and control board. Check for obstructions first, then check wiring. The combustion fan is a safety-critical component — without proper combustion air flow, the unit cannot safely burn gas. Replace the fan motor assembly if it has failed.
How do I fix error code 61 on my Rinnai Rinnai V65iN Value Series Tankless Water Heater?
The most successful fix is "Test and Replace Combustion Fan Motor Assembly" (hard difficulty, ~90 minutes). This fix costs nothing. HomeMD has 2 community-ranked fixes for this error.
Is error code 61 on a Rinnai Rinnai V65iN Value Series Tankless Water Heater serious?
This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.
Can I fix Rinnai Rinnai V65iN Value Series Tankless Water Heater error 61 myself?
Yes — the top-ranked community fix ("Test and Replace Combustion Fan Motor Assembly") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Insulated gloves, Voltage source for testing.
How much does it cost to repair Rinnai Rinnai V65iN Value Series Tankless Water Heater error 61?
DIY cost: $0. Professional repair typically costs $300-$450. Many homeowners save money by trying the top-ranked community fix first.
What other error codes does the Rinnai Rinnai V65iN Value Series Tankless Water Heater have?
The Rinnai Rinnai V65iN Value Series Tankless Water Heater has 8 other known error codes, including: 02 (Ignition Failure), 03 (Bath Fill Function Abnormality), 05 (Blocked Exhaust / Air Supply), 10 (Blocked Exhaust — Air Pressure Switch), 11 (No Ignition), and 3 more.
Which other Rinnai models have the 61 error?
Error code 61 also appears on 8 other Rinnai models: Rinnai RE180iN RE Series Non-Condensing Tankless Water Heater, Rinnai RL75iN RL Series Tankless Water Heater, Rinnai RL94iN RL Series Tankless Water Heater, Rinnai RSC160iN Condensing Combi Boiler, Rinnai RU130iN Sensei Super High Efficiency Plus Tankless Water Heater, Rinnai RU199iN Sensei Super High Efficiency Plus Tankless Water Heater, and 2 more. The fix may vary by model, so check each model's specific page for tailored repair steps.
What other error codes does the Rinnai Rinnai V65iN Value Series Tankless Water Heater have?

The Rinnai Rinnai V65iN Value Series Tankless Water Heater has 8 other known error codes:

Which other Rinnai models have the 61 error?

Error code 61 also appears on 8 other Rinnai models:

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