Microwave Wiring Repaired After Repeated Tripping in Shah Alam
Last week, we received an urgent call from a homeowner in Shah Alam. Her microwave kept tripping the DB while heating food for her children. It had tripped three times in a row, leaving her frustrated and worried about her family’s safety.
When we arrived, the first thing we noticed was the microwave power point. Upon inspection, we found that the wires inside the socket were melted due to overheating.
After we traced the circuit further, we discovered that the microwave’s power point was not on a dedicated line. Instead, it was shared with a computer power socket in the living room and several other sockets in the kitchen. The customer’s son was using a 5-gang extension for his monitor, speakers, printer, and iPhone charger, all plugged into the same circuit. This meant that every time the microwave drew full power, it overloaded the circuit, causing the MCB to trip. The shared wiring also explained why other appliances, like the water kettle, lost power whenever the microwave operated. Loose connections and shared high-power circuits like this are a common cause of repeated trips, overheating, and potential fire hazards.
Frequent Trips and Electric Shocks
According to the customer, her brother’s house is also experiencing serious electrical issues. Every time it rains, the entire house trips, leaving the family without power and creating a constant worry about safety. Repeated tripping is often a sign of underlying problems in the earthing system, insulation, or circuit connections. Left unaddressed, these faults not only cause inconvenience but also put the entire household at risk of electrical shocks or fire hazards. Frequent trips during rain are particularly dangerous because moisture can worsen insulation faults and increase the likelihood of earth leakage. The customer mentioned that she is now more aware of the importance of proper wiring and protective devices, especially after dealing with repeated microwave tripping at her own home. It also highlights how even minor issues like improperly shared circuits or overloaded extensions can escalate into serious safety concerns if left unchecked.
A few days ago, her brother had a minor electric shock while touching the water heater, a frightening reminder of how unsafe electrical wiring can be. This incident underscores the critical importance of dedicated circuits, proper earthing, and functional RCCBs 25A with 10mA sensitivity for high-power appliances like water heaters, which are used in wet areas. Even small current leakages can become dangerous if protective devices are missing or improperly installed. Homeowners should never ignore signs like frequent tripping, burning smells, sparks, or minor shocks. They are clear warnings that the electrical system needs immediate professional inspection and repair. Addressing these problems early not only protects people from injury but also prevents damage to appliances and reduces the risk of electrical fires. Ensuring proper wiring and safety devices is a small investment compared to the cost of accidents or major repairs.
What We Did To His DB and MCB
To fix the problem safely, we:
- Rewired the microwave to a dedicated circuit using proper 4mm cabling.
- Replaced the damaged power socket to prevent further overheating.
- Installed an MCB and RCCB to provide proper overload and earth leakage protection.
- Tested the microwave independently to ensure it ran safely without tripping, and confirmed other appliances now had stable power.
We also advised the homeowner that high-power appliances like microwaves, water heaters and induction cookers must each have their own dedicated circuit. Sharing circuits with other devices like computers or kitchen appliances can lead to overloaded wiring, frequent tripping, and even fire hazards.
Why Proper Electrical Wiring Matters
Many homeowners underestimate the importance of proper electrical installation. Using high-quality wires and MCBs from trusted brands like Himel, EPS, Hager, and ABB can make a huge difference in long-term safety and reliability. Loose connections, shared circuits, or low-quality materials may work temporarily but can turn into dangerous and costly problems later.
We always remind homeowners: saving a little on wiring now may seem fine, but it can cause tripping, overheating, or fire risks later. Proper installation ensures appliances run safely, your family is protected, and your electrical system lasts longer.
Safe Electrical Solutions in Shah Alam
If your microwave, induction cooker, water heater, or other appliances frequently trip the DB, or if your sockets, switches or DB box are showing signs of trouble, get a professional inspection today.
We handle all kinds of electrical issues:
- Frequent breaker tripping
- RCCB that won’t trip or trips randomly
- Appliances failing to start
- Dead or burnt sockets
- Sparks, overheating switches, flickering lights
- Sudden fan or appliance stops
- Unstable voltage or power cuts
Call 012-870 2699 now for a professional electrical inspection in Shah Alam, Klang, and Selangor
Visit us at www.MrElectrician.com.my
Safety starts with proper wiring. Don’t wait until a small problem becomes a big hazard.
