Potterton
Potterton Sight Glass COM17007789
Sight glass for Potterton Commercial NXR4 series gas boilers, used to inspect the flame and combustion area.
At a glance
- Appliance family: Potterton Commercial NXR4
£64.64
£53.87 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 SIGHT GLASS (part number COM17007789) is a Potterton viewing component for Potterton Commercial NXR4 series gas boilers. It provides a sealed viewing point through which the flame and combustion area inside the appliance can be inspected. It is supplied as a boiler spare for the NXR4 range.
Signs this part needs replacing
- The glass is cracked, chipped or visibly discoloured, obscuring the view into the combustion area.
- The viewing window is stained or clouded to the point where the flame cannot be clearly observed during servicing.
- There are signs of leakage or combustion products escaping past the sight glass seal.
- The glass has become loose or fails to seat correctly in its housing.
Before you order
- Confirm the appliance is a Potterton Commercial NXR4 and note the section count of the unit being worked on.
- Check the existing sight glass for the part number or marking to confirm it matches COM17007789.
- Inspect the surrounding seal and housing for damage, as these may also need attention.
- Isolate the appliance and allow it to cool before removing or refitting any combustion-related component.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL NXR4 10 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 11 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 12 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 13 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 14 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 15 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 16 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 17 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR4 9 SECTION | — | — | — | |
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — |
Documents & drawings
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