Baxi
Baxi Hall Effect Sensor Assembly 720061801
Baxi 720061801 hall effect sensor assembly for Baxi and Potterton combi and system appliances, used to monitor fan speed and position.
At a glance
- Part type: Thermostats, Thermistors & Sensors
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£30.00
£25.00 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Baxi 720061801 is a hall effect sensor assembly manufactured by Baxi for use in its own appliances and in selected Potterton models. It sits on the fan or fan assembly and reads the rotational speed and position of the fan, sending that signal back to the appliance control board so combustion air can be regulated correctly. A failed sensor typically leaves the board unable to confirm that the fan is running, which stops the appliance from firing.
Signs this part needs replacing
- The appliance locks out shortly after a call for heat and needs repeated resets.
- The fan runs but the board reports no fan feedback, so ignition is never attempted.
- Intermittent firing, with the appliance running normally on some attempts and failing on others.
- Fault codes relating to fan speed, air pressure or combustion air appear on the display.
- Erratic or uneven fan behaviour during the pre-purge and post-purge phases.
Before you order
- Check the GC number and, where applicable, the serial number suffix on the appliance data badge against the compatibility list before ordering.
- Confirm the model and serial number range, as some Baxi ErP COMBI variants are listed by serial number ending.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Thermostats, Thermistors & Sensors |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 720061801 |
|---|---|
| GC number | H90-609 |
| Barcode / EAN | 720061801 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-25 | 47-077-25 | — | — |
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-25 | 47-077-25 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-26 | 47-077-26 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-26 | 47-077-26 | — | — |
| BAXI DUO-TEC 2 COMBI 28 COMPACT | 47-075-72 | 47-075-72 | — | — |
| BAXI ECOBLUE COMBI 24 | 47-075-81 | 47-075-81 | — | — |
| BAXI ECOBLUE COMBI 28 | 47-075-82 | 47-075-82 | — | — |
| BAXI ECOBLUE COMBI 33 | 47-075-83 | 47-075-83 | — | — |
| BAXI ECOBLUE COMBI ErP 24 | 47-077-11 | 47-077-11 | — | — |
| BAXI ECOBLUE COMBI ErP 28 | 47-077-12 | 47-077-12 | — | — |
Showing 10 of 26 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
BAXI appliance manual — 124 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-25), 124 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-25), 128 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-26), 128 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-26)
manualmanualBAXI appliance manual — DUO-TEC 2 COMBI 28 COMPACT (GC 47-075-72)
manualmanualBAXI appliance manual — ECOBLUE COMBI 24 (GC 47-075-81), ECOBLUE COMBI 28 (GC 47-075-82), ECOBLUE COMBI 33 (GC 47-075-83)
manualmanualBAXI appliance manual — ECOBLUE COMBI ErP 24 (GC 47-077-11), ECOBLUE COMBI ErP 28 (GC 47-077-12), ECOBLUE COMBI ErP 33 (GC 47-077-13)
manualmanualBAXI appliance manual — ECOBLUE PLUS COMBI 24 (GC 47-075-84), ECOBLUE PLUS COMBI 28 (GC 47-075-85), ECOBLUE PLUS COMBI 33 (GC 47-075-86)
manualmanualBAXI appliance manual — ECOBLUE PLUS COMBI ErP 24 (GC 47-077-08), ECOBLUE PLUS COMBI ErP 28 (GC 47-077-09), ECOBLUE PLUS COMBI ErP 33 (GC 47-077-10)
manualmanualBAXI appliance manual — NETA-TEC COMBI 24 GA (GC 47-075-51), NETA-TEC COMBI 28 GA (GC 47-075-52), NETA-TEC COMBI 33 GA (GC 47-075-53)
manualmanualBAXI appliance manual — NETA-TEC PLUS COMBI 24 GA (GC 47-075-64), NETA-TEC PLUS COMBI 28 GA (GC 47-075-65), NETA-TEC PLUS COMBI 33 GA (GC 47-075-66)
manualmanualPOTTERTON appliance manual — APOLLO 25 (GC 47-393-38), APOLLO 30 (GC 47-393-37)
manualmanualPOTTERTON appliance manual — PERFORMA 24 ECO HE 2 (GC 47-393-25)
manualNo technical questions yet for this part.
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