Potterton
Potterton Air Pressure Switch 5105796
Potterton air pressure switch 5105796, a fan-proving safety device for Kingfisher MF boilers, also listed under 1123583.
At a glance
- Part type: Air pressure switch
- Also known as 1123583
£81.96
£68.30 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 Potterton air pressure switch, part number 5105796, is a safety device used on Potterton gas boilers. It monitors the fan and confirms that air is being moved through the appliance before the boiler is allowed to fire. If the fan stops or airflow is lost, the switch keeps the boiler from running so that combustion gases cannot build up without a safe route out of the appliance.
Signs this part needs replacing
- The boiler locks out or refuses to fire while the fan is running normally
- Repeated lockouts on start-up, or shortly after the burner has lit
- The fan spins but the boiler does not prove airflow and will not ignite
- Intermittent running with nuisance lockouts that clear after a reset
- A fault indication relating to fan operation or air pressure proving
Before you order
- Check the GC number on the appliance data badge against the compatibility list to confirm the model
- Confirm the switch currently fitted carries part number 5105796 or the alternative number 1123583
Mechanical
| Part type | Pressure Switches |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 5105796 |
|---|---|
| GC number | E78-250 |
| Barcode / EAN | 5039177643401 |
| Commodity code | 8536 50 80 90 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1123583 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON KINGFISHER MF CFL100 | 41-590-34 | 41-590-34 | — | — |
| POTTERTON KINGFISHER MF CFL40 | 41-590-27 | 41-590-27 | — | — |
| POTTERTON KINGFISHER MF CFL50 | 41-590-28 | 41-590-28 | — | — |
| POTTERTON KINGFISHER MF CFL60 | 41-590-29 | 41-590-29 | — | — |
| POTTERTON KINGFISHER MF CFL70 | 41-590-30 | 41-590-30 | — | — |
| POTTERTON KINGFISHER MF CFL80 | 41-590-31 | 41-590-31 | — | — |
| POTTERTON KINGFISHER MF CFL90 | 41-590-32 | 41-590-32 | — | — |
| POTTERTON KINGFISHER MF RSL100 | 41-590-41 | 41-590-41 | — | — |
| POTTERTON KINGFISHER MF RSL40 | 41-590-35 | 41-590-35 | — | — |
| POTTERTON KINGFISHER MF RSL50 | 41-590-36 | 41-590-36 | — | — |
Showing 10 of 26 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.
No technical questions yet for this part.
Not sure which part?
Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.