Description
The role of the impeller
While the pump runs, the fan impeller drives air through the motor and cools it. This model has 7 blades and is for a 13 mm shaft – suitable for the pumps of Azuro and PRO sand filtration systems.
The plastic impeller is mounted at the back of the motor and hidden by the cover. If it cracks or a blade breaks, the airflow weakens, the motor overheats and may be damaged. A typical sign is rattling or vibration.
Parameters
| Item no. | DS2920999999 |
|---|---|
| Brand | Mountfield |
| Impeller for | motor fan |
| Blades | seven |
| Shaft bore | 13 mm |
| Intended for | pumps of Azuro and PRO sand filtration systems |
Compatible models
- 3BTE0058 – Azuro 4 and 5 m³/h
- 3BTE0060 – Azuro 6 and 7 m³/h
- 3BTE0059 – Azuro 11 m³/h
- 3BTE0244 – Azuro 9 m³/h
- Azuro 9, 11, 5, 5 Profi and 7 (3BTE0543, 3BTE0544, 3BTE0547, 3BTE0550, 3BTE0551)
- PRO models S144T, S166T, S210T and S210S (3BTE0355, 3BTE0356, 3BTE0362, 3BTE0363)
Not sure about the shaft of your motor? Write to us with the model of your filtration system and we will check it against the catalogue.
When it is time for a new impeller
Replace it if a blade is broken, if it is cracked or if the bore has become loose, and do not run the pump with a damaged part. The original part slides onto the 13 mm shaft under the motor cover without modification.
- seven blades for an even airflow
- bore for a 13 mm shaft
- for pumps of Azuro and PRO filtration systems
- item no. DS2920999999
Replacement
- Cut the power to the pump and wait for it to stop completely.
- Remove the fan cover.
- Pull off the worn impeller and wipe the shaft.
- Push the new impeller on all the way.
- Refit the cover and turn the impeller by hand – it must not catch.
Inspect the cover too: if it is cracked, replace it with the 128/92 cover as well. Clean the dust from the grille so the air passes freely, and after replacement run the pump briefly and listen for any unusual sounds.
See also: Wellness, Pools and Equipment, Spare and Other Parts, Pool Spare Parts, For Filters and Other Equipment, For Prefabricated Pools, Pool Liners, Pool Underlays.




















