Grant
Grant GCS11 Cylinder Control/Limit Stat
Grant GCS11 control and limit thermostat for DuoWave HP and MonoWave HP cylinders.
At a glance
- Also known as 3206704
£68.00
£56.67 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 Grant GCS11 is a cylinder control and limit thermostat used on Grant DuoWave HP and MonoWave HP hot water cylinders. It regulates cylinder temperature under normal running and provides a high-limit cut-out to protect the cylinder from overheating. It is a serviceable electrical component mounted to the cylinder.
Signs this part needs replacing
- Cylinder water runs hotter or cooler than the set temperature
- The high-limit cut-out trips repeatedly and requires manual reset
- No heat demand is passed to the cylinder despite the programmer calling
- Erratic cylinder temperature with no consistent set point
- Visible damage, corrosion or scorching at the thermostat body or terminals
Before you order
- Confirm the cylinder model and litre capacity against the fit list above
- Check the existing thermostat's part number and terminal arrangement
- Isolate the electrical supply to the cylinder before inspection or replacement
- Verify the fault lies with the thermostat and not the cylinder sensor pocket or wiring
Compliance
| Barcode / EAN | 5056003705140 |
|---|---|
| Alternative numbers | 3206704 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GRANT DuoWave HP Direct 170 Litre | — | — | — | |
| GRANT DuoWave HP Direct 200 Litre | — | — | — | |
| GRANT DuoWave HP Direct 250 Litre | — | — | — | |
| GRANT DuoWave HP Direct 300 Litre | — | — | — | |
| GRANT DuoWave HP Direct 400 Litre | — | — | — | |
| GRANT DuoWave HP Direct 500 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 170 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 200 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 250 Litre | — | — | — | |
| GRANT DuoWave HP Indirect 300 Litre | — | — | — |
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Documents & drawings
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