Brand guide
Rheem error codes
Match the equipment family and displayed code before following any check.
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.
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.
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.
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.
Official Rheem material describes 29 as Neutralizer is clogged. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Official Rheem material describes 31 as Faulty inlet thermistor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Official Rheem material describes 33 as Faulty outlet thermistor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Official Rheem material describes 61 as Faulty blower motor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
Official Rheem material describes 66 as Faulty bypass motor. This guide records the cited product-family scope, safety-reviewed owner checks, and service limits.
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.
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.
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.
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.