Danfoss TP5000 Problems

Many users report that their central heating doesn’t activate at the programmed times, despite the thermostat’s flame icon indicating the search for heating. Even after changing the batteries in the TP5000, the problem persists. Another issue is with the RX1 receiver: the lack of any active lights, particularly the green light which signifies correct functioning. While users can manually activate the heating by pressing the CH1 button, the desired automatic functionality doesn’t seem to operate properly.

Potential Causes:

1. Synchronization Issues: The TP5000 might not be communicating effectively with its receiver, leading to a breakdown in automatic commands.
2. Temperature Setting: The set temperature might be too low, preventing the system from activating the heating.
3. Faulty RX1 Receiver: The receiver might be malfunctioning, indicated by the absence of the green light and miscommunication with the thermostat.
4. Battery Issues: Though batteries may have been replaced, the quality and type of batteries used might not be suitable.

Recommendations & Solutions:

1. Resetting the TP5000: One solution involves turning the TP5000 down to its lowest setting, waiting about 30 seconds, then setting it to its highest. After another 30-second pause, the device can be set to the desired temperature. This might help in re-establishing a connection between the thermostat and the receiver.
2. Temperature Reevaluation: It’s recommended to evaluate the set temperature. Especially during colder months, setting it too low might result in the heating not activating.
3. RX1 Receiver Light: If there’s no green light on the RX1 receiver even after setting the thermostat to 30, the problem might be with the thermostat. However, if the green light does activate, it indicates the receiver is functioning correctly.
4. Device Replacement: If all efforts fail and anomalies persist (like heating activating for only short durations or manual mode being the only functioning mode), the RX1 or even the TP5000 might need replacement.
5. Battery Quality: Ensure the use of high-quality alkaline batteries, such as Duracell, as opposed to cheaper zinc variants.

Conclusion:

The Danfoss TP5000, while efficient, can pose challenges for users at times. Recognizing the issues, applying the above solutions, or seeking professional help can ensure homeowners continue to enjoy comfortable temperatures without manual intervention. It’s always recommended to consult the user manual or contact the manufacturer’s customer service for specialized guidance.