Description
Worcester 8716121957 NTC Temperature Sensor
The Worcester Bosch 8716121957 NTC Sensor is a genuine replacement temperature sensor designed for selected Worcester Greenstar 4000 boilers.
The NTC (Negative Temperature Coefficient) sensor monitors water temperature within the heating system and provides continuous feedback to the boiler PCB. Accurate temperature readings help maintain efficient operation, reliable heating performance and safe boiler control.
A faulty NTC sensor can cause temperature fluctuations, boiler lockouts, fault codes, poor heating performance or inconsistent hot water temperatures.
Replacing a defective sensor can restore accurate temperature monitoring and improve overall boiler efficiency.
Compatible Worcester Boilers
Greenstar 4000 Series
12kW System Boilers
- GR4700IW 12s NG – GC No. 41-800-07 (7733600377)
- GR4700IW 12s LPG – GC No. 41-800-08 (7733600378)
15kW System Boilers
- GR4700IW 15s NG – GC No. 41-800-09 (7733600379)
- GR4700IW 15s LPG – GC No. 41-800-10 (7733600380)
18kW System Boilers
- GR4700IW 18s NG – GC No. 41-800-11 (7733600381)
- GR4700IW 18s LPG – GC No. 41-800-12 (7733600382)
21kW System Boilers
- GR4700IW 21s NG – GC No. 41-800-13 (7733600383)
- GR4700IW 21s LPG – GC No. 41-800-14 (7733600384)
24kW System Boilers
- GR4700IW 24s NG – GC No. 41-800-15 (7733600385)
- GR4700IW 24s LPG – GC No. 41-800-16 (7733600386)
Combi Boilers
- GR4700IW 25c NG – GC No. 47-800-30 (7733600371)
- GR4700IW 25c LPG – GC No. 47-800-31 (7733600372)
- GR4700IW 30c NG – GC No. 47-800-32 (7733600373)
- GR4700IW 30c LPG – GC No. 47-800-33 (7733600374)
Please note: Before placing your order you must check your part matches the Manufacturer Part Number stated above.
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