Rinnai Water Heater Error Code 32: How to Fix It

Q: Can I still use my Rinnai water heater with error code 32?

You may have limited or no hot water with error code 32. The unit may shut down as a safety precaution, so it's best to fix the issue promptly to restore normal operation.

Q: How much does a Rinnai temperature sensor cost to replace?

A replacement outgoing water temperature sensor typically costs between $30-80 for the part, plus labor if you hire a technician. The exact cost depends on your specific Rinnai model.

Q: Why does my Rinnai keep showing error code 32?

Recurring error code 32 usually indicates a failing temperature sensor, loose wiring connections, or buildup affecting sensor accuracy. In rare cases, it could indicate a control board problem.

Q: How long do Rinnai water heater temperature sensors last?

Temperature sensors typically last 5-10 years depending on water quality and usage. Hard water and mineral buildup can reduce sensor lifespan.

Q: Is error code 32 covered under Rinnai warranty?

Coverage depends on your unit's age and warranty terms. Parts are typically covered for 5-12 years depending on the model. Check your warranty documentation or contact Rinnai for specific coverage details.

Abstract

Rinnai error code 32 indicates that the outgoing water temperature sensor is malfunctioning or providing abnormal readings. This sensor monitors the hot water temperature leaving your unit, and when it fails, your water heater may not heat properly or may shut down for safety.