Rheem - Tankless Water Heater Error Codes
Manufacturer | Error Code | Description |
Rheem- Link to Manual Models: RTGH-S/SR, Prestige RTGH, TK-808NR-REV | ||
| Error Code 1L | Water heater has a buildup of lime deposits. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 05 | Air intake or vent exhaust opening may be blocked. Remove any blockage. (Air intake requires 12in. [30 cm] of clearance.) The vent pipes on the vent termination may not be connected properly. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 11 | The gas shut-off valve is not fully opened. Check the shut-off valve and open completely. |
| Error Code 12 | Gas service has been interrupted. Contact your gas utility company. LP gas is running low (LP models only). Refill or replace your LP gas container. |
| Error Code 13 | If this code is still displayed after taking the numbered steps above, Contact a dealer or qualified service technician. |
| Error Code 14 | Water heater is overheating.Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 15 | The heat exchanger is too hot. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718.
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| Error Code 29 | Neutralizer is clogged. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718.
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| Error Code 31 | Faulty inlet thermistor. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 33 | Faulty outlet thermistor.Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 61 or 99 | Faulty blower motor. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 65 | Faulty water flow solenoid. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 92 | The neutralizer needs to be replaced soon. The unit can be used for a while, but Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code 93 | The neutralizer must be replaced. The unit cannot be used until the neutralizer is replaced. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
| Error Code P1 | Not enough water flow to operate the unit. Increase the water flow from the fixtures. |
| Error Code 88 | Reminder to flush the heat exchanger and/or replace the water treatment filter. Call or Text Blue Conservation’s trained Rheem specialists at 484-469-0718. |
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