Symptoms
If you notice one or more of these symptoms, this page is for you:
- Smoke is not extracted
- Smells linger in the kitchen
- Steam builds up on the walls
- The hood runs but there is no suction
The most common causes
1
Clogged grease filters (most common)
The aluminium filters under the hood — about 70% of cases.
2
Worn carbon filter
In recirculation hoods that recycle the air.
3
Weak motor
It loses power after years of use.
4
Blocked external ducts
Bird nests, grease buildup, or blockage.
5
Blocked external vent
The exterior air-outlet grille needs cleaning.
Solutions
Safe DIY solutions
Clean the grease filters
- 1Remove the filters
- 2Soak in hot water + a dishwasher tablet or strong soap
- 3Leave them for a full hour
- 4Rinse and dry well
- 5Reinstall
Replace the carbon filter
- 1Replace it every 3-6 months depending on use
For the technician
- Cleaning the external ducts
- Motor replacement
- External vent repair
When to call a technician
- If cleaning did not solve it
- If the motor is weak or stopped
- If the external ducts need cleaning
We repair every hood type: wall-mounted, island, built-in — for the four specialist brands.
See all hood repair servicesOr call directly onCall now
Quick diagnosis for Weak hood suction
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
Smoke is not extracted
Clogged grease filters (most common)
Cleaning the external ducts
Smells linger in the kitchen
Worn carbon filter
Motor replacement
Steam builds up on the walls
Weak motor
External vent repair
The hood runs but there is no suction
Blocked external ducts
Clean the grease filters
The hood runs but there is no suction
Blocked external vent
Clean the grease filters
Main service related to this fault
Hood repairRelated faults that may be the cause
Brands where this fault appears
Frequently asked about Weak hood suction
How often should I clean the filters?
Monthly or every two months depending on use.
Is the motor repaired or replaced?
If weak it may be serviced; if burnt it is replaced.
Is there a warranty?
Yes — a written warranty.