In this video, we take a comprehensive look at the disassembly of a gas burner top, often referred to as a stove top hob. We examine the mechanics of each component, highlighting the universal principles that apply whether you're dealing with bottled or natural gas. Our exploration includes common questions and faults that people have asked us on YouTube about their gas stovetop hobs:

gas hob not clicking 🚫🔊
gas hob has a low flame 🔥➡️🔽
gas hob not lighting 🚫🔥
gas hob not staying lit 🔥➡️🚫
gas hob not igniting 🚫🔥
gas hob not sparking 🚫✨
gas hob not working 🚫🛠️*
We demonstrate the workings of gas valves and the sizing of jets according to burner type and also, how to maintain them when you have a Poor flame. We guide you through maintaining ignition in case of faults and testing individual components for diagnosing issues. Additionally, we delve into the Flame Safety Device (FSD) system, controlled by a thermocouple that generates power to keep your gas lit using a thermoelectric device – essentially, a solenoid. This mechanism remains open only when heat is present at the thermocouple's tip, as it generates power. The invention of this system is credited to Thomas Seebeck in (1821) and is known as the Seebeck effect.

Furthermore, we explore the spark generator and ignition loom, detailing how they send sparks to the electrodes situated around the burners and the type of spark required for igniting the gas. Lastly, we examine all safety features and provide an explanation of each component's functionality.

We pay close attention to the valves that control gas flow to the burner cup, fitted with a jet size specific to the gas type and burner dimension. Notably, natural gas units have larger jets compared to those using bottled gas. For safety, we delve into the Flame Safety Device (FSD) system, which is a trio of the gas valve, spark generator, and thermocouple. The thermocouple, critical for safety, harnesses the Seebeck effect to generate voltage when heated, maintaining the gas flow only if the flame is present. Should the flame go out unexpectedly, the lack of electric generation triggers the gas supply to shut off, ensuring your safety. Additionally, we'll explain the complete function of the system, including the spark generation and ignition at the burner cup.

Before proceeding, we stress that gas appliance servicing must be done by professionals, with certifications like the Gas Safe registration in the UK being a prerequisite. Our guide will walk you through the removal of griddles, burner caps, and the delicate process of loosening screws that may have seized due to electrolysis between dissimilar metals. We recommend a careful approach to freeing these screws, possibly using WD40, and remind viewers to always cut off gas and electricity before commencing work. The final steps involve removing knobs and lifting the top section, taking care to avoid damaging the electrodes.

🛒 For all your Gas appliance parts and more information on part names visit [https://www.how-to-repair.com/help/ga...]

Timestamp of gas stove top Hob works
00:00 Understanding the gas stove top components.
02:52 Accessing gas components.
04:22 Gas hob ignition system.
11:24 Gas valve and burner system explained.
14:53 Cleaning a blocked gas jet.
17:56 How a thermocouple works, gas valve, thermo electric device solenoid.
20:14 Ordering gas, hob parts and technical information.

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