Ferroli
Ferroli Wiring Harness 39838940
Ferroli wiring harness 39838940 for Optimax HE Plus 31C and 38C gas boilers.
At a glance
- Part type: wiring harness / wiring loom
- Appliance family: Optimax HE Plus
- Also known as 1211823
£271.69
£226.41 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 Ferroli 39838940 is a wiring harness (wiring loom) used on Ferroli Optimax HE Plus condensing gas boilers. It carries the electrical connections between the boiler's control components and the appliance's internal wiring. It is supplied as a single harness assembly for service and repair work.
Signs this part needs replacing
- Insulation that has become brittle, cracked or heat-damaged near the boiler's hot components
- Chafed, pinched or exposed conductors along the harness run
- Loose, corroded or discoloured connector terminals causing intermittent contact
- Repeated or intermittent electrical faults and error codes that clear when the loom is moved
- No continuity through one or more conductors when tested with a multimeter
Before you order
- Confirm your boiler model and build version (V1 or V2) against the fitment list above
- Check the part number printed on the existing harness before removing it
- Compare the connector count and layout of the new harness with the one being replaced
- Isolate the electrical supply and follow the manufacturer's wiring diagram when fitting
Compliance
| Alternative numbers | FER39838940, 1211823 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| FERROLI FERROLI OPTIMAX HE PLUS 31C V1 | — | — | — | |
| FERROLI FERROLI OPTIMAX HE PLUS 31C V2 | — | — | — | |
| FERROLI FERROLI OPTIMAX HE PLUS 38C V2 | — | — | — | |
| FERROLI OPTIMAX HE PLUS 31C - 30K0414003 (01/12/2008) | 47-267-44 | 47-267-44 | — | — |
| FERROLI OPTIMAX HE PLUS 38C - 30K0415002 (01/12/2008) | 47-267-45 | 47-267-45 | — | — |
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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