UDB Fault History

SECTION F: Troubleshooting

To view the fault codes in the UDB history file:

1.Press and hold the switch labeled “SW1” for 5 seconds to access the fault history. LED 17 will begin to flash when the history has been accessed. See Fig. 38 on page 37.

2.Press the switch labeled “SW2” to scroll through the recorded faults in history.

3.When a fault is being displayed, the corresponding LED will light AND LED 17 will flash at a rate that corresponds to the fault number.

4.The faults are recorded and displayed on a last in, first out basis. The last fault recorded will be the first fault displayed. There is no time or date stamp associated with these faults.

5.Continue to push “SW2” to view subsequent faults.

6.When the history of faults has been exhausted, pushing “SW2” again will roll the fault history over and it will start again.

7.To exit the fault history, press and hold “SW1” for 5 seconds, or wait for 4 minutes and the board will automatically exit the history mode (fault LEDs will go out).

To clear the fault history, press and hold both “SW1” and “SW2” for 5 seconds.

NOTE: Once the history has been cleared, it cannot be recovered.

503-2003 specifications

The Raypak 503-2003 is a notable entry in the world of water heating solutions, renowned for its efficiency and reliability in both residential and commercial settings. This model is designed to provide exceptional performance while maintaining ease of use and minimization of environmental impact.

One of the standout features of the Raypak 503-2003 is its advanced heating technology. The unit utilizes a durable, copper heat exchanger which ensures quick and efficient heating of water. This heat exchanger is known for its ability to transfer heat effectively, leading to reduced energy consumption and lower utility bills. The design also allows for a seamless operation, ensuring that the system heats water swiftly without sacrificing performance.

In addition to its efficient heating capabilities, the Raypak 503-2003 is equipped with innovative controls. The digital control panel allows users to easily set and adjust the desired water temperature. This feature provides a level of convenience that simplifies operation while enhancing user experience. Furthermore, the smart technology employed in the unit ensures that it operates within optimal parameters, avoiding unnecessary energy expenditure.

Durability is another hallmark of the Raypak 503-2003. Built with heavy-duty components, this water heating solution is designed to withstand the rigors of continuous use. The rugged construction ensures longevity, making it a cost-effective investment for homeowners and businesses alike. Moreover, the unit is designed to be resistant to corrosion and wear, further extending its lifespan and reliability.

The energy efficiency of the Raypak 503-2003 is a crucial characteristic that sets it apart from competitors. Rated with a high efficiency score, this model contributes to lower emissions and is environmentally friendly. It adheres to various energy standards, making it a suitable choice for those looking to reduce their carbon footprint while enjoying reliable water heating.

Noise reduction is another important feature of the Raypak 503-2003. Designed with quiet operation in mind, the unit operates with minimal noise pollution, allowing for a pleasant environment in both residential and commercial spaces.

In summary, the Raypak 503-2003 combines advanced heating technology, user-friendly controls, durability, and energy efficiency into a robust water heating system. This makes it an excellent choice for those in need of dependable and sustainable heating solutions. Whether for daily home use or for larger commercial applications, the Raypak 503-2003 stands out as a leader in its class.