Water Heater Singapore
Condo
Rheem Power Tripping Issue Fixed at Parc Palais
Replacement of the Junction Box to resolve Rheem Power Tripping problems.
Existing Brand: Rheem EHG-25S
Date Of Replacement: 16 May 2025
Project Location: Parc Palais
Before Junction Box Replacement:
The concealed junction box above the ceiling was found burnt due to a loose wire connection. This high-resistance fault generated excessive heat, leading to insulation damage and causing the Rheem Power Tripping issue.
After Junction Box Replacement:
The burnt junction box was replaced with a new, compliant unit. All wire connections were securely tightened, ensuring safe operation. Post-replacement, the Rheem Power Tripping issue was resolved, and the water heater functioned normally without further incidents.
Case Study: Joven
A homeowner at Parc Palais faced an unexpected issue of Rheem Power Tripping, even though the water heater was recently installed. The owner reached out to Homeone to inspect and resolve the issue.
Inspection Findings 
Power Tripping at Heater Switch: During our site assessment, our technician observed that the heater switch tripped when the Rheem water heater was activated. Upon inspecting the switch, there were no visible signs of damage or burn marks. To isolate the issue, the technician disconnected the heater and tested the switch independently, confirming that it was functioning correctly and not the source of the problem.
Burnt Junction Box:
The junction box above the false ceiling was found burnt, indicating a serious electrical fault. The likely cause was a loose or improper wire connection, which can generate excessive heat over time without tripping the breaker, eventually leading to insulation damage and burning. Other causes, like circuit overloading or corrosion, were ruled out due to proper load sizing and the new condition of the wiring.
Replacement work scope:
- The burnt junction box was replaced with a new, compliant, heat-rated unit.
- Wiring was rechecked and reconnected securely.
- A full system test confirmed the heater was functional and safe.
- The work was supervised by a PUB Licensed Plumber and EMA Licensed Electrician, ensuring full compliance.
Our EMA Licensed Electrician has endorsed that work is done in accordance with the conditions stated below:
- All electrical works comply with the Energy Market Authority (EMA) regulations and relevant Singapore standards for safe electrical installations.
- The replacement of the burnt junction box is carried out using certified components suitable for the water heater load.
- All electrical connections are securely terminated to prevent high-resistance faults and overheating.
- The concealed junction box location has been verified to have adequate ventilation and safety clearance.
Conclusion:
The Rheem Power Tripping issue was resolved by identifying and replacing the burnt junction box above the ceiling. With proper reconnection and safe termination of wires, the heater is now operating reliably. The work was completed following EMA regulations and supervised by a licensed EMA Worker to ensure long-term safety and compliance.