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Rinnai Tankless Water Heater Repair & Installation

Rinnai tankless water heater service in Los Angeles u2014 error codes, descaling, repairs, and new installations.

Rinnai is one of the leading tankless water heater brands globally, and their V-Series, RU-Series, and RUR-Series units are common throughout Los Angeles. When a Rinnai throws an error code or starts producing inconsistent temperatures, the issue usually traces to the combustion system, flow sensor, or heat exchanger u2014 components we diagnose and repair regularly.

We handle Rinnai error codes LC (scale buildup), 10, 11, 12, 14, 25, 31, 32, 41, and others. In LA’s hard water environment, most Rinnai units benefit from an annual descaling flush to prevent the LC code and heat exchanger damage. We carry Rinnai-compatible parts for same-day repair on most common failures.

Common Rinnai Issues We Fix

LC error code indicating lime or scale buildup

Error codes 10, 11, 12 (combustion or ignition issues)

Temperature fluctuates between hot and cold during a shower

Unit runs but no hot water reaches fixtures

Annual descaling maintenance needed

What’s Included

Error Code Diagnosis

Diagnose Rinnai fault codes to find the root cause.

Descaling Flush

Flush mineral scale before it damages the heat exchanger.

Parts Repair

Igniter, flow sensor, gas valve, and heat exchanger repair.

New Rinnai Installation

Full installation with correct venting and gas sizing.

Rinnai Showing an Error Code?

Free, no-obligation estimate. Upfront pricing before any work begins.