Symptoms
If you notice one or more of these symptoms, this page is for you:
- The knob will not turn
- It turns without opening the gas
- It comes out of place
- The knob is hard to turn
- The knob seats oddly
The most common causes
1
Knob worn from the inside
The plastic or metal inside the knob has worn out.
2
Faulty valve behind the knob
The knob turns but the valve does not respond.
3
Grease or liquid buildup
Liquids got in and corroded the knob internally.
4
Broken internal shaft
The shaft connecting the knob to the valve has broken.
Solutions
Important notes
The fix is usually knob replacement
- 1A worn knob usually cannot be repaired — it is replaced
- 2We stock and knob parts
- 3Removal and refitting must be done carefully to avoid valve damage
For the technician
- Replace the knob with a genuine part
- Replace the valve if it is the cause
- Repair the internal shaft
When to call a technician
- If the knob turns without opening gas (valve issue)
- If the knob is very hard to turn
- If the knob must be removed without causing damage
Common brands for this fault: (most searched), Tecnogas. We keep parts in stock.
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Quick diagnosis for Stove knobs
Use this table to identify the closest cause before calling. If gas smell is involved, treat it as an emergency.
Symptom
Likely cause
Best action
The knob will not turn
Knob worn from the inside
Replace the knob with a genuine part
It turns without opening the gas
Faulty valve behind the knob
Replace the valve if it is the cause
It comes out of place
Grease or liquid buildup
Repair the internal shaft
The knob is hard to turn
Broken internal shaft
The fix is usually knob replacement
Main service related to this fault
Stove repairRelated faults that may be the cause
Frequently asked about Stove knobs
Is it in stock?
Yes for common brands like and.
Do I need a technician?
Yes — to remove the knob without damaging the valve.
Is there a warranty?
Yes — a written warranty.