Rinnai Service

ll Hot Water LLC technician troubleshooting a Rinnai tankless water heater digital error code in West Union SC

Rinnai Tankless Water Heater Error Codes: Complete Troubleshooting Guide & Fault Directory

Is your Rinnai tankless water heater displaying a diagnostic code? Use our complete error code directory, model index, and troubleshooting fixes for Codes 11, 12, and LC from Seneca's water heater specialists at All Hot Water LLC.

All Hot Water LLC

Oct 279 min read