Bdr Sri Permaisuri Cheras Condo Electrical Faults

A condo owner in Bandar Sri Permaisuri recently contacted us about a persistent and worrying DB tripping issue. His distribution board (DB Box) kept tripping unexpectedly. The unit was a spacious 1,264 sqft apartment, equipped with three bathrooms, five air conditioners, and three water heaters. Each water heater was connected to its own dedicated Himel RCBO C25 10mA, while the rest of the system was protected by Himel Main Switches, MCBs, and an RCCB.

The homeowner was not sure if the problem was due to an ELCB/RCCB fault, a wiring fault, or a socket fault, but the situation was becoming increasingly disruptive.

At first, he suspected the water heater circuit. He switched off the dedicated RCBO for the water heater, but the tripping still occurred. This confirmed that the issue was not isolated to the heater. He had also considered replacing sockets or changing the RCCB, but those steps had not yet been taken. The uncertainty remained and with multiple appliances in use daily, the risk of damage or safety hazards grew.

Problems That ELECTRICAL Checks Could Not Solve

Despite the fact that all his electrical components were Himel brand, well known for their reliability and good quality, the tripping still happened. This shows that sometimes the problem lies not in the devices themselves but in the wiring, installation or hidden faults within the circuit.

Without professional tools such as insulation resistance testers, leakage clamp or thermal imaging, it was impossible to confirm whether the RCCB was nuisance-tripping, the wiring insulation had broken down or one of the sockets was leaking current. Blindly replacing parts would not solve the true issue and might waste money. Unfortunately, most wiremen are amateurs, many do not even use a proper multimeter or advanced testers. All they rely on is a simple test pen to check whether a line is live, but this cannot detect problems with the neutral or earth, which are often the real causes of dangerous faults.

Reliable Himel Electrical Components

All of the electrical components in this condo, including the Main Switch, MCB, RCCB, and RCBO, were from the Himel brand. Himel products are well known for their solid build quality and long-lasting performance, making them a trusted choice for residential electrical systems. Each of the three water heaters even came with its own individual dedicated RCBO C25 10mA for extra protection. Personally, I like this brand very much and have been using it for many homes because of its reliability and consistency. However, even the best electrical components cannot perform properly if the wiring installation itself is not done to standard.

However, even with high-quality protection devices, electrical faults can still occur if the wiring insulation is compromised, terminals are loose or appliances are leaking current. This shows that while quality brands like Himel provide excellent safety and durability, professional troubleshooting and proper installation are equally critical to ensure the entire system functions safely.

Local Renovation Company With Indon Wireman

The condo was fairly new, with the keys collected only half a year ago. After getting the keys, the owner had hired a local renovation company to handle the electrical and renovation works, but most of the actual wiring installation was carried out by an Indonesian wireman. Unfortunately, when the electrical issues started showing up, the renovation company was unwilling to come back and repair the problem, leaving the owner frustrated and without support. This situation highlights a common risk faced by many homeowners: even in a brand-new property with quality electrical components, poor workmanship during renovation can cause hidden faults that only surface months later. In the end, the owner was left with no choice but to look for a reliable wireman to reinspect all the wiring again, especially because he has two young children and worries they might get electrocuted while taking a shower.

Owner’s Own Electrical Troubleshooting Attempts

Before calling us, the owner had already tried to troubleshoot the water heater problem himself. He first switched off the socket that supplied the water heater to see if the tripping would stop, but the issue still happened. He considered replacing the faulty socket with a new one, but had not done it yet. He also thought about switching the existing ELCB with a new unit, but this too was left untested. These simple checks showed that the problem was more complex than a single faulty socket or a weak ELCB, and pointed to deeper issues within the wiring or installation that required professional inspection.

Professional Troubleshooting Process

When handling such cases, our inspection process is detailed and systematic:

• Step 1: Circuit Isolation – Switch off all MCBs and RCBOs, then power them on one by one to see which circuit causes the RCCB to trip. This helps narrow down whether the problem comes from sockets, water heaters or air conditioning.
• Step 2: RCCB Testing – Verify whether the Himel RCCB is working properly. A faulty RCCB can trip unnecessarily or fail to trip during a real leakage.
• Step 3: RCBO Verification – Inspect each Himel RCBO C25 10mA for the water heaters. These devices are highly sensitive and designed to protect against small leakage currents. If the wiring insulation around the water heater is compromised, even a small fault can trigger them.
• Step 4: Wiring & Socket Testing – Carry out Megger (insulation resistance) tests to check if wires are leaking current to earth, and inspect sockets for overheating, moisture ingress, or burn marks.
• Step 5: Appliance Isolation – Disconnect high-power appliances such as air conditioners and washing machines to confirm if any device is causing imbalance and triggering the RCCB.

Warning Signs From DB Box Tripping

A tripping DB box is a warning sign of deeper electrical issues. Even with high-quality components such as Himel MCBs, RCCBs and RCBOs, risks can still arise from:

• Hidden wiring damage or poor connections
• Overheated or moisture-affected sockets
• Earth leakage from appliances or wiring
• Sensitivity mismatch between RCCB and RCBOs
• Improper installation or loose terminals inside the DB

If ignored, these issues can lead to appliance damage, electrical fires, or dangerous electric shocks.

Professional Electrical Inspection in KL & Selangor

Electrical safety depends not just on good-quality components, but on proper wiring, installation, and professional troubleshooting. Whether it is RCCB tripping, water heater RCBOs cutting off, sockets overheating, or DB boxes failing, the right inspection process is the only way to identify the root cause.

If you are facing similar problems, call Alex at 012-870 2699 for a professional inspection. With advanced diagnostic tools and years of troubleshooting experience, we can quickly pinpoint the problem, restore stability, and ensure your home’s electrical system is truly safe.