my ghd takes forever to heat up now, like 5 minutes instead of the 20 seconds it used to

Diagnosis

The ghd Platinum Plus Professional Styler utilizes an intelligent heat-sensing system that monitors the temperature of the plates 250 times per second. When the device takes several minutes to reach its operating temperature instead of the standard 20-30 second window, it indicates a significant drop in voltage reaching the heating elements. This is rarely a failure of the ceramic plates themselves, but rather a failure in the electrical delivery system. The root cause is typically a "partial break" or high-resistance point in the power cable, most commonly occurring at the stress-relief boot where the cord enters the chassis. As the cable is twisted during styling, internal copper strands fracture. While the device may still power on (LEDs light up), the current is insufficient to drive the high-wattage heating elements to temperature quickly, causing the thermal sensors to detect a slow climb and extending the heat-up time indefinitely. You can confirm this by gently manipulating the cord at the base while the device is plugged in; if the heat-up light flickers or the temperature fluctuates, the cable is compromised.

How to Fix It

To resolve power delivery issues and restore rapid heating, follow these precise steps to isolate and rectify the electrical path:

1. Disconnect the styler from the power source and perform a visual inspection of the entire length of the cable, looking specifically for "flattened" sections or outer sheath discoloration.
2. Examine the plug pins for any signs of carbon buildup (black soot) or pitting, which increases electrical resistance. Clean pins with a dry microfiber cloth.
3. Bypass all intermediate power sources. Unplug the device from any extension leads, multi-plug adapters, or surge protectors. These often cannot deliver the peak amperage required for the Platinum Plus's rapid-heat cycle.
4. Plug the device directly into a high-voltage wall socket on a dedicated circuit (e.g., a kitchen or bathroom outlet) to ensure maximum current flow.
5. Once plugged in, hold the power button and observe the LED indicator. If the light pulses slowly, the device is struggling to draw current. If the light remains steady but the plates stay cool, the internal thermal fuse may be partially tripped.
6. Perform a "hard reset" by leaving the device unplugged for at least 30 minutes to allow the internal capacitors to fully discharge before attempting a fresh start in a known-good outlet.

If That Didn't Work

• Internal Cable Replacement: If the cable shows no external damage but the problem persists, the internal connection at the PCB (Printed Circuit Board) may have desoldered due to the constant tension of styling. This requires opening the chassis and re-soldering the power leads or replacing the entire wiring loom.
• Thermostat Calibration Error: The Platinum Plus uses an advanced algorithm to maintain a consistent 210°C. If the internal thermistor (the temperature sensor) has drifted out of calibration, it may "think" the plates are hotter than they are, causing the controller to throttle the power. This usually requires a professional board replacement.
• Voltage Drop Testing: Use a multimeter to test the wall outlet. If the outlet is providing significantly less than the rated voltage for your region (e.g., below 220V in the UK), the styler will never reach its peak heating speed regardless of the device's condition.
• Heating Element Degradation: While rare, the ceramic heating element can develop "cold spots" if the internal foil is warped. If the plates heat unevenly (one side hot, one side cold), the element is failing and the heating assembly must be replaced.

Heads Up

• Avoid Cord Wrapping: Never wrap the power cord tightly around the styler handle when storing. This creates a "kink" at the stress-relief point, which is the primary cause of the heating slowdown described above.
• Surface Cleanliness: Ensure the ceramic plates are free of product buildup. Heavy residue from heat protectants or serums can create an insulating layer, making the plates feel cooler to the touch even when the element is at full temperature.
• Voltage Compatibility: The ghd Platinum Plus is not dual-voltage. Using a travel adapter that does not convert voltage (only plug shape) in a different country will either fry the circuit or cause the extreme slow-heating issue you are experiencing.
• Storage Temperature: Avoid storing your styler in extremely cold environments (like a cold garage). Extreme cold can affect the initial ramp-up time of the electronic controllers.