Verified manufacturer-source collection
Rheem Water Heater Error Codes
Choose the code exactly as shown. Meanings and reset procedures can change across model families, display formats and markets.
Enter
1L Official Rheem material describes 1L as Water heater has buildup of lime deposits. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 1L caution 11 Official Rheem material describes 11 as The gas shut-off valve is not fully opened, or gas service has been interrupted. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 11 caution 12 Official Rheem material describes 12 as LP gas is running low (LP models only). This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 12 caution 14 Official Rheem material describes 14 as Water heater is overheating. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 14 caution 29 Official Rheem material describes 29 as Neutralizer is clogged. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 29 caution 31 Official Rheem material describes 31 as Faulty inlet thermistor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 31 caution 33 Official Rheem material describes 33 as Faulty outlet thermistor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 33 caution 61 Official Rheem material describes 61 as Faulty blower motor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 61 caution 66 Official Rheem material describes 66 as Faulty bypass motor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 66 caution 71 Official Rheem material describes 71 as Solenoid valve circuit failure. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 71 caution 88 Official Rheem material describes 88 as Reminder of flushing the heat exchanger and/or replacing the water treatment filter. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 88 routine 90 Official Rheem material describes 90 as Air intake or vent exhaust opening may be blocked; or the vent pipes on the vent termination may not be connected properly. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: 90, 99 caution P1 Official Rheem material describes P1 as Not enough water flow to operate the unit. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Search/display variants: P1 caution