Baxi
Baxi Control Potentiometer Assembly 235900
Baxi 235900 control potentiometer assembly for Bermuda back boiler and inset models, providing the user-adjustable heating temperature control.
At a glance
- Part type: Potentiometer
- Also known as 45900419, 1113196
£42.00
£35.00 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 Baxi 235900 is a control potentiometer assembly used across the Baxi Bermuda range of back boilers and inset appliances. It sits behind the fascia control knob and converts the knob position into a variable resistance signal, which the boiler control circuit reads to set the central heating water temperature. It is a manufacturer-supplied spare for the Bermuda family.
Signs this part needs replacing
- The heating temperature knob turns but has no effect on the boiler output.
- Boiler temperature runs erratically, swinging hot and cold regardless of knob position.
- The control knob feels loose, spins freely or fails to engage the spindle.
- The appliance fires and runs at one fixed temperature with no adjustment possible.
- Intermittent heating, where the boiler responds only at certain points of the knob travel.
Before you order
- Check the GC number on the appliance data badge against the compatibility list to confirm the correct variant.
- Confirm the part number on the existing potentiometer before ordering, as several Bermuda variants use different control assemblies.
- Cross-reference the alternative and previous numbers when matching against older documentation or an existing component.
Mechanical
| Part type | Potentiometer |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 235900 |
|---|---|
| GC number | 378-909 |
| Barcode / EAN | 5039177598091 |
| Alternative numbers | 45900419, 9300220, 1113196 |
| Previous numbers | 9300220 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI BAXI BERMUDA 45/3E | — | — | — | |
| BAXI BAXI BERMUDA 45/4E | — | — | — | |
| BAXI BAXI BERMUDA 57/3 E | — | — | — | |
| BAXI BAXI BERMUDA INSET 2 50/4E | — | — | — | |
| BAXI BAXI BERMUDA INSET 2 50/4M | — | — | — | |
| BAXI BERMUDA 45/3 ELECTRONIC | 44-077-60 | 44-077-60 | — | — |
| BAXI BERMUDA 45/4 ELECTRONIC | 44-077-73 | 44-077-73 | — | — |
| BAXI BERMUDA 57/3 ELECTRONIC | 44-077-62 | 44-077-62 | — | — |
| BAXI BERMUDA 57/4 ELECTRONIC | 44-077-74 | 44-077-74 | — | — |
| BAXI BERMUDA INSET 2 50/4E | 44-075-03 | 44-075-03 | — | — |
Showing 10 of 11 compatible appliances.
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.
BAXI appliance manual — BERMUDA 45/3 ELECTRONIC (GC 44-077-60), BERMUDA 57/3 ELECTRONIC (GC 44-077-62)
manualmanualBAXI appliance manual — BERMUDA 45/4 ELECTRONIC (GC 44-077-73), BERMUDA 57/4 ELECTRONIC (GC 44-077-74)
manualmanualBAXI appliance manual — BERMUDA INSET 2 50/4E (GC 44-075-03)
manualmanualBAXI appliance manual — BERMUDA INSET 2 50/4M (GC 44-075-01)
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