Troubleshooting

Test by following 4th bullet under BURNERS DO NOT IGNITE WHEN HOT WATER IS TURNED ON.

LOW WATER FLOW/PRESSURE

Too many hot water applications are being used simultaneously or too much flow is being demanded

The 250 SXO will effectively support two 2.0-2.5 gpm shower heads simultaneously or multiple sink applications. Greater draws will result in increased pressure drop and reduced flow at taps. See flow/ temperature chart on page 17.

Btu input is too low due to inadequate gas line sizing

See specifications in chapter 2.8 - 2.9. The 250 SXO requires adequate gas pressure to reach expected temperatures and flow rates, to compensate for inadequate gas supply or lack of gas pressure the 250 SXO will effectively reach the selected output temperature, but only by reducing the hot water flow rate. Its motorized water valve makes this adjustment. Proper gas pressure will need to be delivered before the motorized water valve will allow greater flow rates through it. Lowering the set temperature will also allow increased water flow rate through the motorized water valve. See flow/temperature chart on page 17.

Cold water inlet filter screen is dirty

Remove water inlet filter screen and clean. The screen is located at the inlet connection to the water heater, disconnecting the main cold supply line at the heater is required. Check and clean faucet aerator screens too.

HOT WATER TEMPERATURE FLUCTUATES / UNIT DEACTIVATED

Unbalanced pressure in water lines

Any restriction caused by the water heater in the hot water system can result in uneven pressures between the cold and the hot. In such cases when mixing cold water at the tap (manually or automatically through a mix-type shower valve) the lower hot water pressure may be overpowered by the higher cold water pressure in the building and cause the hot water flow rate to fall below the minimum rate required. A pressure balance valve will help to resolve this symptom.

Temperature balance valves

If the outlet water temperature is set too high, the heater can produce temperatures that are too hot. A temperature balance shower valve can automatically mix in cold water to reduce such hot water temperature. In the event of any temperature instability with the use of a temperature balance shower valve, refer to shower valve manufacturer's instructions for internal adjustment setting. Adjustments should be made to the hottest setting in the shower valve. Additionally the temperature

control of the heater can be lowered to produce a more comfortable hot water temperature.

Inlet water pressure is erratic due to fluctuating supply water pressure

For installation on a private well system with the use of a pressure tank, the lowest pressure range setting recommended is 30-50 psi (2.07-3.45 bar). The use of a pressure reducing valve after the pressure tank is also an effective way to maintain a constant water pressure to the water heater. Watts brand 25AUB- ¾” or N35B-¾” pressure relief valves or equivalent are suggested.

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250 SXO LP, 250 SXO NG specifications

Bosch Appliances has long been a trusted name in home appliances, and its 250 SXO NG and 250 SXO LP models are no exceptions. Designed with both innovation and user convenience in mind, these cooking appliances cater to a variety of culinary needs while ensuring high efficiency and performance.

The Bosch 250 SXO NG and 250 SXO LP are built to provide optimal cooking experiences. One of their main features is the powerful BTU output, which allows for efficient and even cooking across all burner configurations. This enables users to achieve restaurant-quality results right in their kitchen.

These models are equipped with precision flame control, which means that users can easily adjust the heat for delicate dishes or higher temperatures for rapid boiling. Such flexibility is essential for those who enjoy experimenting in the kitchen. Additionally, the 250 SXO LP and NG models come equipped with sealed burners that effectively contain spills and make cleaning a breeze.

Another highlight of these Bosch appliances is their consistent ignition system, designed to deliver reliable starts every time. This feature eliminates the frustration often associated with lighting gas-powered cooktops. The integrated safety measures further enhance peace of mind; with flame supervision devices to shut off the gas supply if the flame goes out, these appliances provide an added layer of security for users.

The Bosch 250 SXO models shine in design as well. Crafted with sleek stainless steel, they are not only reliable but also add a touch of modern elegance to any kitchen. The intuitive controls are user-friendly, allowing cooks of all skill levels to operate the appliance with ease.

Moreover, both models offer compatibility with a variety of cookware, making them suitable for everything from small saucepans to large stockpots. Energy efficiency is also a primary consideration, as these appliances are designed to minimize energy consumption without compromising on performance.

In summary, the Bosch Appliances 250 SXO NG and 250 SXO LP are exemplary cooking appliances that combine powerful performance with sophisticated design. With their advanced technologies and user-centric features, they stand out as reliable options for anyone looking to elevate their culinary adventures.