Guide to Changing the Resistance of a Ceramic Hob

Good morning, good afternoon or good night, depending on when you read me. I'm Pepe, an Electrotodo technician, and today I want to share with you a practical guide on how to change the resistance of a ceramic hob.

This is a common problem and I have received many queries about this, so I decided to make a blog to clear all the doubts and help you do it correctly.

Introduction to the Resistance of Vitroceramics

First of all, it is essential to understand what a resistance is and how it works in a glass-ceramic. The resistance is the component responsible for generating the heat necessary for cooking. If you have a ceramic hob that does not heat well, it is very likely that the heating element is failing and needs to be replaced.

Let's focus on how to correctly identify and change a resistance in a ceramic hob. This process may seem complicated at first, but by following the right steps, you can do it yourself without any problems.

Identification of Resistances and Their Connections

One of the biggest confusions when changing a resistor is knowing how to connect the wires correctly. Resistors come numbered, and it is crucial to pay attention to these numbers and letters rather than the physical position of the wires.

Resistors are usually labeled 1A, 1B, 2A, 2B, and a common terminal. The common terminal is the connection point shared by all circuits. It is essential to connect each wire to the correct terminal for the ceramic hob to function properly.

Procedure for Change of Resistance

Preparation and Safety : Before starting, be sure to disconnect the ceramic hob from the electrical current to avoid any risk of shock. It's also helpful to have a camera or notebook on hand to note how the wires are connected to the old resistor.
Removal of Old Resistance : Locate and remove the old resistance. Take a good look at the connections: in this case, the terminals will be labeled 1A, 1B, 2A, 2B, and the common. Take a photo or drawing if necessary.

New Resistance Connection : This is where many make mistakes. The key is to forget about the physical position of the terminals and focus on the letters and numbers. For example, terminal 1A on the old resistor should be connected to 1A on the new one, regardless of whether the position has changed. The same applies to 1B, 2A, and 2B. The common terminal should be connected to the common on the new resistor.
Verification and Testing : Once you have connected all the cables, make sure they are securely fastened. Plug the cooktop back into power and perform a test to make sure everything is working properly.

Final Tips and Troubleshooting

If after changing the resistance, the ceramic hob does not work as it should, check the connections again. Make sure each wire is in the correct terminal based on the letters and numbers, not the physical position.

Remember that the letters B are usually for the indicator light that the ceramic hob is on, while the letters A are for the current terminals. This detail is crucial for a correct installation.

In summary, changing the resistance of a glass-ceramic hob is a simple task if the steps are followed correctly. The key is to pay attention to the labels and not the physical position of the terminals. With this guide, I hope you can do it without any problems and keep your kitchen running perfectly.

I hope this guide has been useful to you. If you have any questions or need more help, feel free to leave a comment or get in touch. Good luck and until next time!