Buderus
Buderus Sensor Boiler G1/4 Inch 75 LG 63029641
Buderus G1/4 inch boiler sensor, 75 LG, used on GB312 oil boiler models as a temperature thermistor.
At a glance
- Also known as 2241663
£45.74
£38.12 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 Buderus Sensor Boiler G1/4 Inch 75 LG is a temperature sensor (thermistor) for Buderus oil boiler appliances. It screws into the boiler via a G1/4 inch threaded connection and monitors temperature as part of the appliance control circuit. It is listed under Buderus part number 63029641.
Signs this part needs replacing
- Boiler locks out or fails to fire despite a call for heat
- Temperature readings at the control panel are erratic, implausible or drift from actual flow and return values
- Burner cycling becomes irregular as the control reacts to a faulty signal
- Hot water or flow temperature fluctuates beyond the setpoint
- Resistance measured across the sensor falls outside the expected range for the sensed temperature
Before you order
- Confirm the thread size and length designation on the existing sensor match G1/4 inch and 75 LG
- Check the appliance model and version code against the fit list above
- Inspect the sensor pocket and its thread for corrosion or damage before fitting a new sensor
Compliance
| Barcode / EAN | 4010009943150 |
|---|---|
| Alternative numbers | 2241663 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BUDERUS GB312-120, G20 BE V2 - 7747007569 | — | — | — | |
| BUDERUS GB312-120, G20 V2 - 63045623 | — | — | — | |
| BUDERUS GB312-120, G25 NL V2 - 63045635 | — | — | — | |
| BUDERUS GB312-120, G25 V2 - 63045629 | — | — | — | |
| BUDERUS GB312-160, G20 BE V2 - 7747007570 | — | — | — | |
| BUDERUS GB312-160, G20 V2 - 7747005629 | — | — | — | |
| BUDERUS GB312-160, G25 NL V2 - 7747005637 | — | — | — | |
| BUDERUS GB312-160, G25 V2 - 7747005633 | — | — | — | |
| BUDERUS GB312-200, G20 BE V2 - 7747007571 | — | — | — | |
| BUDERUS GB312-200, G20 V2 - 7747005630 | — | — | — |
Showing 10 of 24 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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.