Hamworthy
Hamworthy Air Pressure Switch 533901318
Air pressure switch for Hamworthy gas boilers, Dungs LGW 3A2 range, part number 533901318.
At a glance
- Also known as AIR-PRESSURE-SWITCH-MODIFIED-533901318, 2062036
£167.63
£139.69 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 Hamworthy 533901318 is an air pressure switch supplied in the Dungs LGW 3A2 range. It forms part of the boiler's proving and safety circuit, monitoring air pressure within the appliance. It is used across a number of Hamworthy gas boiler models.
Signs this part needs replacing
- Boiler locks out or fails to fire on a call for heat
- Fan runs but the boiler does not prove and drops to fault
- Repeated lockout cycles or intermittent ignition
- Fault code relating to air pressure or fan proving
- Boiler shuts down shortly after start-up
Before you order
- Confirm your appliance model against the fit list above
- Check the part number and the Dungs LGW 3A2 marking on the existing switch
- Gas-related work must be carried out by a competent, registered engineer
Compliance
| Alternative numbers | AIR-PRESSURE-SWITCH-MODIFIED-533901318, 2062036 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — | |
| HAMWORTHY MODUMAX 110 FLOOR STANDING | — | — | — | |
| HAMWORTHY MODUMAX 125C FLOOR STANDING | — | — | — | |
| HAMWORTHY MODUMAX 220 FLOOR STANDING | — | — | — | |
| HAMWORTHY MODUMAX 250C FLOOR STANDING | — | — | — | |
| HAMWORTHY WARMWELL HE W140 FULLY AUTOMATIC FLOOR STANDING | — | — | — | |
| HAMWORTHY WARMWELL HE W60 FULLY AUTOMATIC FLOOR STANDING | — | — | — | |
| HAMWORTHY WARMWELL HE W95 FULLY AUTOMATIC FLOOR STANDING | — | — | — | |
| HAMWORTHY WARMWELL W120 FULLY AUTOMATIC FLOOR STANDING | — | — | — | |
| HAMWORTHY WARMWELL W140 FULLY AUTOMATIC FLOOR STANDING | — | — | — |
Showing 10 of 13 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.
HAMWORTHY appliance manual — WARMWELL HE W140 FULLY AUTOMATIC FLOOR STANDING, WARMWELL HE W60 FULLY AUTOMATIC FLOOR STANDING, WARMWELL HE W95 FULLY AUTOMATIC FLOOR STANDING
manualmanualHAMWORTHY appliance manual — WARMWELL W120 FULLY AUTOMATIC FLOOR STANDING, WARMWELL W140 FULLY AUTOMATIC FLOOR STANDING, WARMWELL W60 FULLY AUTOMATIC FLOOR STANDING, WARMWELL W80 FULLY AUTOMATIC FLOOR STANDING, WARMWELL W95 FULLY AUTOMATIC FLOOR STANDING
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