What does this symptom mean?
The hood runs but steam and odours remain, or extraction is weak even at maximum speed. The symptom alone does not identify a failed part because several causes can produce the same behaviour. Proper diagnosis considers when the fault occurs, appliance model and whether it is constant or intermittent.
Likely causes
1. A saturated grease filter or exhausted carbon filter
A saturated grease filter or exhausted carbon filter. Similar symptoms can have different causes, so parts should not be replaced by guesswork.
2. A blocked or bent extraction duct
A blocked or bent extraction duct. Similar symptoms can have different causes, so parts should not be replaced by guesswork.
3. A dirty or loose fan
A dirty or loose fan. Similar symptoms can have different causes, so parts should not be replaced by guesswork.
4. A weak motor or speed-control fault
A weak motor or speed-control fault. Similar symptoms can have different causes, so parts should not be replaced by guesswork.
Safe checks before booking service
- Clean metal filters as instructed or replace carbon filters.
- Check that the external outlet is not closed.
- Test different speeds and note the difference.
- Do not dismantle the motor or internal duct.
How a technician diagnoses the fault
The inspection begins by confirming the reported behaviour and safely testing the affected function. The technician then compares operation with model specifications and measures related components where required. The purpose is to find the root cause rather than replace the first part associated with the symptom.
| Inspection stage | What is checked? |
|---|---|
| Confirm the symptom | Reproduce the fault and identify timing and affected function. |
| External inspection | Assembly, cleanliness, moving parts, ventilation and visible connections. |
| Technical measurements | Test model-specific components related to the fault. |
| Post-repair test | Operate the appliance and confirm safety and stable performance. |
Parts that may be related
FilterFanMotorSpeed switch or board
This is a list of possibilities, not a final diagnosis. Any part must match the model number and inspection result because a similar appearance does not guarantee identical dimensions, connections or ratings.
How to reduce repeat faults
- Clean or replace filters according to type and usage.
- Do not run the hood with heavy grease buildup.
- Monitor noise and vibration and keep extraction openings clear.
When to call Glem Gas maintenance
Call when the fault repeats after safe checks, when there is gas odour, abnormal heat or noise, or when access requires dismantling the appliance. Have the model number, symptom and governorate ready.