Worcester Bosch
Worcester Bosch Temperature Sensor NTC 8737602343
NTC temperature sensor for Worcester Bosch Greenstar combi boilers, used to monitor water temperature.
At a glance
- Also known as 1038269
£28.80
£24.00 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 TEMPERATURE SENSOR NTC is a negative temperature coefficient sensor manufactured by Worcester Bosch. It is used across the Greenstar 2000 Combi range to measure water temperature and feed that reading back to the boiler's control board. The sensor's resistance falls as temperature rises, allowing the appliance to regulate heating and domestic hot water accurately.
Signs this part needs replacing
- Boiler locks out or shows a temperature-related fault code
- Domestic hot water runs hot and cold instead of holding a steady temperature
- Heating flow temperature reads incorrectly on the boiler display
- Erratic or implausible temperature readings during operation
- Boiler short-cycles because the sensor output is unstable
Before you order
- Confirm the appliance model number from the data badge matches one of the fits listed above
- Check whether the boiler is the LPG or NG variant, as both are covered by this part
- Inspect the sensor wiring and plug connection for damage before condemning the sensor
- Verify the fault code or symptom points to a temperature sensor rather than a related component
Compliance
| Alternative numbers | 1038269 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 25 C LPG | 47-800-27 | 47-800-27 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 25 C NG | 47-800-26 | 47-800-26 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 30 C LPG | 47-800-29 | 47-800-29 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 30 C NG | 47-800-28 | 47-800-28 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C LPG | 47-800-35 | 47-800-35 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C NG | 47-800-34 | 47-800-34 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C LPG | 47-800-37 | 47-800-37 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C NG | 47-800-36 | 47-800-36 | — | — |
| WORCESTER GREENSTAR GR2300iW 25 C LPG COMBI | 47-800-27 | 47-800-27 | — | — |
| WORCESTER GREENSTAR GR2300iW 25 C NG COMBI | 47-800-26 | 47-800-26 | — | — |
Showing 10 of 16 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.
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