How do I know if this pressure switch is for my boiler?

Verify the reference 9158747 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.

The pressure switch controls the pressure/draught (of air in sealed systems) or water to authorize operation.

Is the boiler not starting or showing a draught fault?

If the fan spins but does not ignite, check the pressure tubes (loose/blocked), the diaphragm, and the fan.

Which models is it suitable for?

Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.

Installation and recommendations

Check the tightness of the pressure pipes and the switching of the contact.

What does refurbished mean and what coverage does it have?

Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

RefurbishedCointra Pressure switches

Pressure Switch Water Cointra Supra Compact SPC 21 EI Ref. 9158747

Name: Pressure Switch Water Cointra Supra Compact SPC 21 EI Ref. 9158747
Brand: Cointra
SKU: PCS21EI
Price: 30 EUR
Availability: InStock

30 €VAT includedIn stock · 1 unit

Pressure switch: refurbished spare part that controls air or water pressure to authorize operation. Useful if the boiler does not start or shows a draft error. Compatible with SPC 21 EI (ref. 9158747). Includes a one-year warranty and delivery within 2–4 working days in the EU.

Consult via WhatsApp

Not sure if it's your part? Send us a photo of the screen printing via WhatsApp and we'll confirm compatibility before you purchase.

Delivery in 2–4 working days

1-year warranty

14-day return

Technical support

Key Data

Reference: 9158747
Brand: Cointra
Type of part: Pressure switches
Available units: 1 unit in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 9158747) equips these models. Verified compatibility; check the reference before purchasing.

Supra Compact

SPC 21 EI

How do I know if this pressure switch is for my boiler?: Verify the reference 9158747 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
What is it used for?: The pressure switch controls the pressure/draught (of air in sealed systems) or water to authorize operation.
Is the boiler not starting or showing a draught fault?: If the fan spins but does not ignite, check the pressure tubes (loose/blocked), the diaphragm, and the fan.
Which models is it suitable for?: Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations: Check the tightness of the pressure pipes and the switching of the contact.
What does refurbished mean and what coverage does it have?: Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

Pressure Switch Water Cointra Supra Compact SPC 21 EI Ref. 9158747

Key Data

Supra Compact

Spare Parts Related Boiler Supra Compact SPC 21 EI