Vaillant
Vaillant Overheat Thermostat RC01-005 101191
Vaillant overheat thermostat RC01-005, part 101191, for Ecomax PRO 18E and 28E VU series boilers.
At a glance
- Also known as 1373411
£12.94
£10.78 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 Vaillant 101191 is an overheat thermostat, also listed as RC01-005, used in Vaillant Ecomax PRO VU series gas boilers. It monitors boiler temperature and interrupts the burner circuit if the appliance overheats, acting as a safety cut-out. It is a thermostats category component within the boiler's control and safety circuit.
Signs this part needs replacing
- The boiler locks out repeatedly and requires manual resetting.
- The appliance shuts down shortly after firing, before reaching the set flow temperature.
- Overheat lockout occurs even when the system appears to be circulating normally.
- The boiler fails to run at all after an overheat event, with the cut-out not resetting.
- Intermittent shutdowns that clear on reset but return during the next demand cycle.
Before you order
- Confirm your boiler model and GC number against the fit list above.
- Check the existing thermostat's part number or marking before removing it.
- Verify whether the fault lies with the overheat thermostat rather than the control thermostat or sensor.
- Confirm the boiler is fully isolated and depressurised before any component is disturbed.
Compliance
| Barcode / EAN | 4024074433102 |
|---|---|
| Alternative numbers | 1373411 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VAILLANT ECOMAX PRO 18E VU186-0 (41-044-30) | — | — | — | |
| VAILLANT VAILLANT ECOMAX PRO28E VU286-0 (41-044-31) | — | — | — | |
| VAILLANT VU 186-O | 41-044-30 | 41-044-30 | — | — |
| VAILLANT VU 286-O | 41-044-31 | 41-044-31 | — | — |
| VAILLANT ecoMAX PRO 18E VU 186-0 (2003-2006) | 41-044-30 | 41-044-30 | — | — |
| VAILLANT ecoMAX PRO 28E VU 286-0 (2003-2006) | 41-044-31 | 41-044-31 | — | — |
Documents & drawings
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