Worcester Bosch showing D5 in Tipton? It usually points at a temperature sensor, most often the flow sensor. What it means and what an engineer will do.
D5 on a Worcester Bosch usually means the boiler is getting a reading it cannot trust from a temperature sensor. On many Greenstar models that is the flow sensor. On some it relates to an outside sensor if one is fitted. Your manual will say which applies to yours.
Sensors tell the boiler how hot the water is. If a reading is missing or makes no sense, the boiler stops rather than guess. The fault is often the sensor itself or the wire and plug that connect it.
Worcester boilers are a common upgrade in Tipton, often fitted in place of old floor-standing units in Great Bridge and Princes End. A boiler moved into a new spot sometimes has wiring that gets knocked during later work.
No. The boiler stopped because it could not read a temperature. Smell gas? Get everyone outside, leave switches alone and call 0800 111 999, the National Gas Emergency line. A code on the display is not a leak. A smell might be.
Usually not while the code is showing. The boiler needs the reading before it will heat anything.
Normally not. A sensor or its lead is one of the simpler boiler repairs.
Switch the boiler off at the fused spur, wait a minute, then turn it back on and reset once. If D5 returns, leave it off.
Mention if cupboards were fitted or pipes boxed in near the boiler. A disturbed plug or lead is a common cause.
Sensors sit inside the casing. Testing them is a job for an engineer with a meter.
Tests the sensor, its lead and the connection at the circuit board. A sensor is usually a quick part to replace.
A photo of D5 on the display and of the boiler label. Say if you have an outside sensor on a wall.
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