Touch Panel vs
PCB Failure
Buttons not working? Display flickering? Learn whether you need a simple touch pad replacement or a major board repair in Mysuru & Bengaluru.
High Voltage Warning
Never attempt DIY repair on a Microwave PCB. The capacitor stores lethal voltage even when unplugged. Touch panel replacement involves handling sensitive ribbon cables connected to high-voltage circuits. Always call a professional.
The Brain vs. The Skin
When your microwave stops responding, it’s usually one of two things: the Touch Membrane (The Skin) or the Control PCB (The Brain).
In humid cities like Mysuru and Bengaluru, moisture and pests are the biggest enemies of these electronic parts.
Why Do They Fail?
1. Cockroaches: Small roaches love the warmth of the PCB. Their droppings cause short circuits on the main board.
2. Humidity: Moisture seeps into the layers of the touch pad, causing “Ghost Touches” (buttons pressing themselves) or dead keys.
3. Voltage: Sudden spikes can fry the transformer on the PCB.
Symptom Checker
It’s Likely the Touch Panel If:
- Some buttons work, others don’t (e.g., Start works, Stop doesn’t).
- You have to press very hard to make it work.
- The display is on, but buttons are unresponsive.
It’s Likely the PCB If:
- The display is completely dead (Black screen).
- The microwave behaves erratically (Starts/Stops on its own).
- You smell burning plastic from the control area.
Repair vs. Replacement Cost (2026 Estimates)
Typical charges in Mysuru & Bengaluru.
| Component | Repair Cost (₹) | Verdict |
|---|---|---|
| Touch Membrane | ₹2,000 – ₹4,500 | Worth Repairing. Extends life by 3-5 years. |
| PCB Repair | ₹1,500 – ₹3,500 | Good Value if component-level repair is possible. |
| New PCB (Replacement) | ₹3,500 – ₹6,500 | Consider buying a new microwave if cost exceeds ₹5,000. |
| Door Switch | ₹800 – ₹1,200 | Always repair. Cheap and critical. |
The 50% Rule: How to Decide
If the repair cost is >50% of a new machine’s price, replace it.
Repair It If:
- Microwave is less than 7 years old.
- It is a high-end Convection/Grill model (New ones cost ₹10k+).
- The Magnetron (heating element) is still healthy.
Replace Unit If:
- Microwave is older than 10 years.
- Spare parts are no longer manufactured (Obsolete model).
- The inside cavity is rusted or peeling.
Frequently Asked Questions
Can I just clean the touch panel?
External cleaning won’t fix internal moisture damage or worn-out carbon tracks inside the membrane. Replacement is usually needed.
Do you repair imported microwaves?
Yes. Aspire technicians can source parts for major international brands and perform chip-level PCB repairs.
How to prevent PCB failure?
Use a voltage stabilizer, keep the kitchen pest-free (use cockroach gel), and never spray water directly on the control panel.
Get an Expert Opinion
We inspect, diagnose, and give you an honest quote before starting work.
CALL ASPIRE: 9066472722