Worcester Bosch Greenstar CDi Classic System ErP fault E2
CH flow NTC sensor defective
Gas boilerWhat it means
The central heating (CH) flow NTC sensor has been detected as defective.
Likely causes
- Faulty CH flow NTC sensor
- Faulty connecting lead
Where to start
- Check CH flow NTC sensor
- Check connecting lead
The full answer, free
- How to put it right, step by step
- The manual page for this fault (page 52), right under the answer
Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.
From the Worcester Bosch manual for the Greenstar CDi Classic System ErP. Check the model on the data plate before you order parts.