Rinnai is one of the world’s leading tankless water heater manufacturers — their units are known for exceptional reliability, outstanding efficiency, and some of the best warranty support in the industry. Davis Plumbing and Heating Inc. installs, services, and repairs Rinnai tankless water heaters throughout Riverside County, including Murrieta, Temecula, Menifee, Perris, and Lake Elsinore.

Rinnai Product Lines Available in Riverside County

  • Rinnai V-Series — Entry-level non-condensing tankless water heaters. Reliable and affordable, with good efficiency ratings. Ideal for replacement in homes where upgrading venting for a condensing unit isn’t practical.
  • Rinnai RL-Series (RLQ/RLX) — Mid-range condensing units with efficiency ratings up to 0.93 UEF. Industry-leading performance at a competitive price point.
  • Rinnai CU199eN — Commercial-grade whole-home condensing tankless heater. The workhorse for large families and high-demand applications throughout Riverside County.
  • Rinnai i-Series — Smart, Wi-Fi connected tankless water heaters with remote management via the Rinnai App. Monitor your unit’s performance from your smartphone.

Common Rinnai Error Codes

  • Code 11 — Ignition failure. Most common cause: gas supply issue or dirty flame sensor.
  • Code 12 — Flame failure during operation. Low gas pressure or dirty burner assembly.
  • Code 25 — Condensate drainage issue (condensing units). Check condensate drain for blockage.
  • Code 32 — Outgoing water temperature sensor failure.
  • Code 52 — Gas modulation valve failure.

Davis Plumbing diagnoses Rinnai error codes and carries common replacement parts for faster same-visit repairs.

Annual Rinnai Service in Riverside County

Rinnai recommends annual maintenance for all tankless units, especially in hard water areas like Riverside County. Annual service includes: filter screen cleaning, heat exchanger descaling (critical in our 300-500+ ppm hard water area), gas pressure verification, venting inspection, and full error code diagnostic check. Annual service protects your warranty and significantly extends unit life.

Rinnai Installation

Davis Plumbing installs Rinnai units as part of water heater replacement projects throughout Riverside County. We handle the gas line sizing, venting, water connections, and permit process — a complete installation from start to finish.

Schedule Rinnai Service Today

Call Davis Plumbing and Heating at (951) 657-0393 for Rinnai service, repair, or installation in Riverside County. Or contact us online.