What is the Worcester Bosch boiler D1 fault / error code?
1 Answer
Answered by Landlord & Homeowner Gas Services
22nd February 2019
Landlord & Homeowner Gas Services answered the question "What is the Worcester Bosch boiler D1 fault / error code?"
Hi, I’m Greg from Landlord & Homeowner Gas Services and I’m happy to answer this question for you. The D1 fault on a Worcester boiler is likely due to a fault with the return sensor The likely cause is either the sensor has shorted or it’s disconnected Hope this helps Kind regards Greg Landlord & Homeowner Gas Services