Rheem Water Heater Error Code 29: How to Fix It

Q: What causes Rheem water heater error code 29?

Error code 29 is caused by either a blocked condensate drain line preventing proper drainage, or a malfunctioning condensate sensor that incorrectly detects water backup. Debris, algae, or frozen drain lines are common culprits.

Q: Can I reset Rheem error code 29 without fixing the problem?

While you may be able to temporarily reset the error, it will return until the underlying condensate drainage issue is resolved. Ignoring this error can lead to water damage and potential safety hazards.

Q: How much does it cost to fix Rheem water heater error code 29?

DIY repair costs $0-30 for cleaning supplies. Professional service typically ranges from $150-400 depending on whether you need drain cleaning, sensor replacement, or more extensive condensate system repairs.

Q: Is Rheem water heater error code 29 dangerous?

Yes, this error prevents safe operation. Blocked condensate drains can cause water backup, potential flooding, and may indicate heat exchanger problems. The unit will shut down as a safety measure until the issue is resolved.

Q: How often should I clean my Rheem water heater condensate drain?

Inspect and clean the condensate drain system annually, or more frequently in dusty environments. Regular maintenance prevents blockages that trigger error code 29 and extends your water heater's lifespan.

Abstract

Rheem water heater error code 29 indicates a problem with the condensate drainage system - either the drain line is blocked or the condensate sensor has failed. This high-priority error prevents your water heater from operating safely and requires immediate attention to prevent water damage.