Rheem Gas Heavy Duty Water Heater Models 265 Litre and 275 Litre Water Heater not Operating

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SAVE A SERVICE CALL

WATER HEATER NOT OPERATING

The ignition system may have ‘locked out’. To reset the water heater, switch the electrical supply off at the isolating switch, wait ten seconds then switch on again. If the water heater fails to light, phone your nearest Rheem Service Department or Accredited Service Agent to arrange for an inspection.

DIAGNOSTIC FEATURES OF ELECTRONIC THERMOSTAT

This water heater incorporates an electronic thermostat. In the event of a fault occurring a 2-digit code will be displayed on the thermostat LED to diagnose the fault.

Code

AL

AH

Fault

Temperature below the minimum set point (60ºC). Refer to “Electronic Thermostat” on page 8.

Temperature above the maximum set point (82ºC). Refer to “Electronic Thermostat” on page 8.

EE Memory error

E1 Temperature sensor failure

In the event of an “AL” fault, an attempt should be made to reset the electronic control if the burner is not already alight (refer to “Water Heater Not Operating” on page 12).

All other fault conditions should be attended to by your nearest Rheem Service Department or Accredited Service Agent.

BURNER WILL NOT LIGHT

•Is the fan in the air duct (631 275 model only) operating continuously? Ensure the front cover is securely in position. Switch off the electrical supply at the isolating switch, wait 30 seconds and then switch the electrical supply on again. Phone your nearest Rheem Service Department or Accredited Service Agent to arrange for an inspection if the water heater burner fails to light.

•Is there gas to the water heater?

Check the gas isolation valve on the gas supply line is open.

•Is there a normal gas supply to the rest of the premises?

Try lighting another gas appliance. If there is no gas call your gas provider.

•Is the ignition system ‘locked out’?

Try resetting the water heater. Refer to “Water Heater Not Operating” on page 12.

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Contents Owners Guide Installation Instructions Patents Contents Temperature Adjustment About Your Water HeaterModel Type Hotter Water Increases the Risk of Scald InjurySafety To Turn OFF the Water Heater To Turn on the Water HeaterDoes the Water Quality Affect the Water HEATER? HOW Long will the Water Heater LAST?Anode Protection HOW Your Water Heater Works Mains PressureElectronic Thermostat HOT Surface IgnitionTemperature Pressure Relief Valve Regular CareExpansion Control Valve Servicing Save a Service Call Not Enough HOT Water or no HOT WaterDiagnostic Features of Electronic Thermostat Water Heater not OperatingBurner will not Light Temperature Pressure Relief Valve Running Expansion Control Valve RunningWater Heater Appears to be Leaking High GAS BillsInstallation This Water Heater is not Suitable for Pool HeatingWater Heater Location Indoor Installation Safe TrayOutdoor Installation Mains Water Supply Tank Water SupplyHOT Water Delivery Temperature Limiting Device Circulated HOT Water Flow and Return SystemReducing Heat Losses Anode TypesSaddling Pipe Work Typical Installation Outdoor Location Typical Installation Indoor Location Dimensions and Technical Data Model No 621265 631265 621275 631275Connections Plumbing Connection SizesWater Inlet and Outlet GAS Inlet Pipe SizesRelief Valve Relief Valve Drain Thermostat Setting Connections ElectricalWiring a Power Flued System to the Water Heater Power Flue External Controls Intermittent Operation Power Flue External Controls 24 Hour Operation Multiple Installations Multiple Installations Typical Installation Rheem Heavy Duty GAS Water Heaters Installation Dimensions Rheem Heavy Duty GAS Water Heaters Line Manifold Back to Back ManifoldManifold Arrangement Commissioning To Fill and Turn on the Water HeaterGAS Inlet Pressure For Your Safety Read Before Lighting Lighting ProcedureLighting the Water Heater Test the Water Heater After Installation Flashes FaultBurner Pressure Adjustment AIR AdjustmentDraining the Water Heater Temperature Control Recirculation SystemThermostat Adjustment This page is intentionally blank Water Supplies AnodeSaturation Index Warranty Conditions Warranty ExclusionsWarranty Rheem will

Gas Heavy Duty Water Heater Models 265 Litre and 275 Litre specifications

Rheem offers a comprehensive range of gas water heaters, with the 265-litre and 275-litre heavy-duty models standing out for their efficiency, durability, and advanced technology. These models are designed specifically for households and commercial applications that require a reliable supply of hot water, ensuring comfort and convenience.

The Rheem 265-litre model is built to cater to larger households, providing ample hot water to meet daily needs. It features a powerful gas burner that delivers quick heating, allowing users to enjoy hot water almost immediately. With an impressive first-hour rating, the 265-litre unit can effortlessly supply enough hot water for multiple simultaneous uses, such as showers, washing dishes, and laundry.

Similarly, the 275-litre model offers an even greater capacity, making it ideal for larger families or commercial settings. It boasts enhanced heating capabilities and a larger burner size, which significantly reduces recovery time and ensures a consistent supply of hot water throughout the day. This model is particularly beneficial for businesses in the hospitality industry, where demand for hot water is high.

Both models utilize Rheem's proprietary technologies to maximize efficiency. They feature premium insulation that minimizes heat loss, allowing the heaters to maintain optimal water temperatures while consuming less energy. The intuitive electronic gas control system ensures precise temperature management, promoting safety and comfort.

Durability is a hallmark of Rheem water heaters, with both the 265-litre and 275-litre models constructed from high-quality materials designed to withstand the rigors of daily use. The tanks are coated with advanced corrosion-resistant materials, extending their lifespan and reducing the likelihood of maintenance issues. Additionally, both models are equipped with anode rods that further protect against corrosion.

Installation and maintenance are further simplified with Rheem's user-friendly design. The compact build allows for flexibility in installation, whether indoors or outdoors, and the easy access to service points ensures that routine maintenance can be performed without hassle.

In summary, Rheem's Gas Heavy Duty Water Heater Models 265-litre and 275-litre combine advanced technology, durability, and efficiency to deliver exceptional performance. These models are perfect for those requiring a reliable and consistent supply of hot water, making them an excellent choice for both residential and commercial use.
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