Worcester Bosch
Worcester Bosch Printed Circuit Board 6 8738203476
Printed Circuit Board 6, part 8738203476, for the Worcester WAA IU 6 heat pump.
At a glance
- Appliance family: Worcester WAA IU 6 heat pump
- Also known as 2248421
£240.34
£200.28 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 Printed Circuit Board 6 is a Worcester Bosch control board, supplied under part number 8738203476. It is the printed circuit board used in the Worcester WAA IU 6 heat pump, where it handles the appliance's electronic control and sequencing functions.
Signs this part needs replacing
- The heat pump fails to power up or respond to the controls
- Fault codes relating to the control board appear and cannot be cleared
- Heating or hot water operation becomes erratic, with the appliance starting and stopping without demand
- No output to the pump, fan or other controlled components despite correct supply
- Visible damage, moisture ingress or burning to the board or its terminals
Before you order
- Confirm the appliance model is the Worcester WAA IU 6 heat pump
- Check the part number on the existing board against 8738203476
- Isolate the electrical supply before removing or inspecting the board
- Verify that the fault is board-related rather than a sensor, wiring or supply issue
Compliance
| Alternative numbers | 2248421 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER WAA IU 6 HEAT PUMP - (8733701370) | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.