Rheem

10 field manuals · 13 error codes · 2 guides

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Rheem water heaters

Field manual · Water Heater

Rheem Performance / Performance Platinum electric tank (XE-series): quick sheet

Rheem Performance Platinum electric tanks sold at big-box stores with model numbers starting XE (e.g. XE50T12ST45U1 with 4500/4500 W elements, XE50T12EC55U1 with 5500/5500 W elements and LCD touch control, XE50T12CS45U0 / CS55U1 'Gladiator' trim with LeakGuard and built-in EcoNet). The '12' in the model is the 12-year warranty tier. Exact production years not confirmed; date the unit from its rating plate.

7 components4 common failuresRheem

Field manual · Water Heater

Rheem RTGH condensing tankless (RTGH-84/95, Performance Platinum ECOH): quick sheet

Rheem RTGH 'Super High Efficiency' condensing indoor tankless: RTGH-84DVLN, RTGH-95DVLN (current suffix -3), Wi-Fi versions RTGH-95DVELN-3, and the similar Performance Platinum ECOH160DVLN-3 with EcoNet and LeakGuard. RTG (non-condensing) is a different line.

6 components2 common failuresRheem, Ruud

Field manual · Water Heater

Rheem ProTerra hybrid heat pump water heater: quick sheet

Rheem Performance Platinum / Prestige ProTerra hybrid electric heat pump water heaters, 40, 50, 65 and 80 gal, model numbers starting XE…H (e.g. XE80T10H45U0 = 80 gal, 30 A; XE80T10H22U0 = 15 A plug-in-style version). 30 A and 15 A families exist.

6 components3 common failuresRheem, Ruud

Field manual · Water Heater

Electric tank water heater: field service manual

Residential 240 V dual-element tank heaters (roughly 30-80 gal) with surface-mount upper thermostat/ECO and lower thermostat

6 components4 common failuresA.O. Smith, State, Rheem, Ruud, Richmond, Bradford White, Whirlpool

Field manual · Water Heater

Gas tank water heater (atmospheric and power-vent): diagnostic and electrical-side manual

Residential standing-pilot FVIR tanks with thermopile electronic gas controls, and 120 V power-vent tanks; diagnosis and electrical/water-side only

4 components3 common failuresA.O. Smith, State, Rheem, Ruud, Bradford White, Whirlpool

Field manual · Water Heater

Gas tankless water heater: field service manual (water side and diagnostics)

Residential non-condensing and condensing gas tankless units with digital controllers

5 components3 common failuresRinnai, Navien, Noritz, Rheem, A.O. Smith, Bradford White

Field manual · Water Heater

Heat pump (hybrid) water heater: field service manual

Residential integrated heat pump water heaters with backup resistance elements

4 components3 common failuresRheem, A.O. Smith, Bradford White, State

Error codes

A008 Dry-fire protectionA129 Upper element / relay circuit pr…11 No ignition12 Flame failure / gas supply problem14 Overheating31 Inlet thermistor fault33 Outlet thermistor fault61 Combustion fan fault65 Water flow control faultLC / 1L Scale (lime) buildup

Guide · Water Heater

Tankless: error code, no ignition at low flow, or temperature swings

Many tankless complaints are water-side: flow below the activation threshold, a clogged inlet screen, low-flow aerators, or scale in the heat exchanger. Gas supply, venting and combustion codes are blocked: diagnose and refer. Read the code first, then work the water side.

6 steps ~90 minmoderate

Rheem furnaces

Field manual · Furnace

80% gas forced-air furnace: field service manual

Non-condensing (about 80% AFUE) induced-draft gas furnaces with hot surface ignition and an integrated control board; metal flue vent

6 components3 common failuresCarrier, Bryant, Payne, Goodman, Amana, Daikin, Trane, American Standard, Lennox, Rheem, Ruud, York, Coleman, Heil, Tempstar, Comfortmaker

Field manual · Furnace

90%+ condensing gas furnace: field service manual

High-efficiency condensing furnaces (about 90-98% AFUE) with a secondary heat exchanger, PVC venting and a condensate trap; single-stage, two-stage and modulating

3 components2 common failuresCarrier, Bryant, Goodman, Amana, Daikin, Trane, American Standard, Lennox, Rheem, Ruud, York, Heil, Tempstar

Field manual · Furnace

Electric furnace / air handler with heat strips: field service manual

Electric furnaces and air handlers with resistance heat strips, sequencers or relays, and limits/thermal links

3 components3 common failuresGoodman, Carrier, Trane, Rheem, Lennox, York, Nordyne/Intertherm

Error codes

1 flash Lockout or flame failure (varies)2 flashes Pressure switch open3 flashes Limit switch open / overheat

Official Rheem manuals & support

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