Powermax
Powermax P505 O-Ring Fan Blower
Powermax P505 O-ring for the fan blower assembly on Powermax 135, 140 and 155 series gas boilers.
At a glance
- Part type: O-ring, fan blower
£9.24
£7.70 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 Powermax P505 is an O-ring used on the fan blower assembly of Powermax gas boilers. It seals the blower connection, preventing flue gas or air leakage at the joint. It is listed under O-rings, washers and gaskets in the Powermax boiler spares range.
Signs this part needs replacing
- Visible cracking, flattening or hardening of the O-ring
- Traces of soot or condensate around the fan blower joint
- Whistling or unusual noise from the blower area
- Combustion readings outside the expected range on service
- O-ring missing, stretched or damaged after blower removal
Before you order
- Confirm the boiler model and GC number against the appliance data badge
- Check the existing O-ring diameter and profile match the 54 mm internal diameter stated
- Inspect the blower housing and mating face for damage before refitting
- Replace the O-ring whenever the fan blower is removed or disturbed
Compliance
| GC number | 298-025 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POWERMAX 135 | 41-389-01 | 41-389-01 | — | — |
| POWERMAX 140 FOV | 41-389-09 | 41-389-09 | — | — |
| POWERMAX 140 FSS | 41-389-10 | 41-389-10 | — | — |
| POWERMAX 155 CP SS | 41-389-05 | 41-389-05 | — | — |
| POWERMAX 155X FOV | 41-389-14 | 41-389-14 | — | — |
| POWERMAX 155X FSS | 41-389-13 | 41-389-13 | — | — |
| POWERMAX POWERMAX 135 | — | — | — | |
| POWERMAX POWERMAX 140 FOV | — | — | — | |
| POWERMAX POWERMAX 140 FSS | — | — | — | |
| POWERMAX POWERMAX 155 CP SS | — | — | — |
Showing 10 of 12 compatible appliances.
Documents & drawings
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