Vaillant
Vaillant Printed Circuit Board FMU 0020274750
Vaillant FMU printed circuit board, part number 0020274750, for VWL Arotherm heat pump units.
At a glance
- Part type: printed circuit board, FMU
- Also known as 1388610
£277.50
£231.25 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 Vaillant 0020274750 is a printed circuit board for the FMU on VWL Arotherm heat pump units. It is the control board that manages the FMU function within the appliance. It is supplied as a board only, for fitting by a competent heating engineer.
Signs this part needs replacing
- The appliance fails to run or will not start from the control panel
- Repeated fault codes relating to the FMU or board communication
- No response from the unit after a power cycle
- Visible damage, scorching or corrosion on the board
- Erratic or intermittent operation of the heat pump
Before you order
- Confirm the model and variant on the appliance data badge matches the fit list
- Check the existing board's part number against 0020274750
- Isolate the power supply before removing or fitting the board
- Verify the fault is board-related before ordering, as fault codes can have other causes
Compliance
| Alternative numbers | 1388610 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWL 115/2 A 230V | — | — | — | |
| VAILLANT VWL 155/2 A 230V | — | — | — | |
| VAILLANT VWL 55/2 A 230V | — | — | — | |
| VAILLANT VWL 85/2 A 230V | — | — | — | |
| VAILLANT aroTHERM VWL 115/2 A 230V (2013) | — | — | — | |
| VAILLANT aroTHERM VWL 155/2 A 230V (2014) | — | — | — | |
| VAILLANT aroTHERM VWL 55/2 A 230V (2014) | — | — | — | |
| VAILLANT aroTHERM VWL 85/2 A 230V (2013) | — | — | — |
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.
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