The water flow switch and water flow sensor detect that hot water is being drawn from the combi boiler and make the PCB switch to hot water mode. In switch-type models, a diaphragm or magnet moved by the flow triggers a microswitch or reed contact; sensor-type models also measure the flow rate.
This category contains combi boiler water flow switches, flow sensors and the microswitches used with them. For turbine-type parts, see the Flow Turbines and Turbine Sensors category.
When Choosing
- The connection size (1/2 inch, 3/4 inch) and type (threaded, push-fit) must be the same as the old part.
- The cable and connector type must be compatible with the boiler PCB.
- Compare the original part code in the product name with the code on the old part.
-250x250.jpg "Viessmann Vitodens 100 WB1A and WH1B 24kW and 30kW Combi Boiler 1/2\" Flow Switch 7828287 – 7823866 – VI7344484")
Brand: Generous
Model: 77890004009
Product Description
The 1/2 inch flow switch used in Viessmann Vitodens 100 WB1A and WH1B combi boiler models is an important part that detects hot water flow and makes the boiler start automatically. The boiler detects water movement through this part and starts hot water production. Thanks to its..
$32.39
Ex Tax:$26.99
-250x250.jpg "Ariston - Ferroli - Baymak Combi Boiler Water Flow Switch FLCZ20A00 (GTE)")
Brand: Gte
Model: FLCZ20A00
The Ariston - Ferroli - Baymak Combi Boiler Water Flow Switch FLCZ20A00 is a quality product designed to control water flow in combi boiler systems. Manufactured by GTE Elettromeccanica, this flow switch is ideal for improving your combi boiler's performance and safety. Compatible with Ariston, Ferr..
$5.92
Ex Tax:$4.93
-250x250.jpg "Combi Boiler Flow Switch 3/4 – 2 Wire")
Brand: HUA DI
Model: HAD03
With a 3/4 connection size, this flow switch is used to detect water flow in combi boilers and similar domestic hot water systems. When water flow starts, it generates an electrical signal that controls the boiler’s ignition and operating process. Its 2-wire design provides easy connection and stabl..
$6.65
Ex Tax:$5.54
-250x250.jpg "Viessmann Water Flow Sensor (Flow Turbine) – Vitodens 050T Trend Combi Boiler Compatible – 7876065 / VI7398247 – Female Push-Fit Connection")
Brand: OEM
Model: 77890006084
Product Description
The Viessmann water flow sensor (flow turbine) is an important component that detects water movement in the combi boiler system and ensures that the hot water circuit operates correctly. It is compatible with Vitodens 050T Trend combi boiler models and has a U-type black body ..
$18.19
Ex Tax:$15.16
Brand: OEM
Model: 4833
Product Features
Compatible Brand/Model: Ferroli Domiproject, Beretta
Part Code: AS08
Product Description
The Ferroli Domiproject Combi Boiler Flow Switch is a part that controls the activation of hot water in the combi boiler system. This switch activates t..
$5.74
Ex Tax:$4.78
-250x250.jpg "Demirdöküm - Eca Combi Boiler Water Flow Switch FLCZ20B00 (with Union) - GTE")
-250x250.jpg "Demirdöküm - Eca Combi Boiler Water Flow Switch FLCZ20B00 (with Union) - GTE")
Brand: Gte
Model: GTE10
Demirdöküm - Eca Combi Boiler Water Flow Switch FLCZ20B00 is a quality and reliable product designed to precisely control water flow in combi boiler systems. Manufactured by the GTE brand, this water flow switch optimizes the performance of your boiler and ensures safe and efficient use. Its union c..
$6.58
Ex Tax:$5.48
-250x250.jpg "Ariston - Viessman Combi Boiler Water Flow Switch")
Brand: OEM
Model: FS19
Product Features
Compatible Brands: Compatible with Ariston and Viessmann combi boiler models.
Purpose of Use: Used in combi boiler systems to detect the presence of water flow and to control the operation of the appliance accordingly.
High Quality: Manufactured with..
$4.69
Ex Tax:$3.90
Brand: HUA DI
Model: FS15
The water flow sensor NTC compatible with Buderus and Bosch combi boilers ensures efficient operation of the appliance by monitoring water flow and temperature in the combi boiler system. This sensor transmits the water flow rate and temperature to the combi boiler, providing correct heating perform..
$3.59
Ex Tax:$2.99
-250x250.jpg "Universal Roller Lever Micro Switch")
-250x250.jpg "Universal Roller Lever Micro Switch")
Brand: OEM
Model: 02 28 25
The universal roller micro switch is a standard KW type micro switch with a 16 A / 250 V current rating, SPDT (COM / NO / NC) contacts and a roller lever. It is a universal spare part that replaces the micro switch in combi boiler flow switches and 3-way valve assemblies, oven and dishwasher door sa..
$0.94
Ex Tax:$0.79
Brand: OEM
Model: 4816
Product Features
Compatible Models: Compatible with Alarko brand combi boilers.
Type: Double Micro Switch
Installation: Designed for easy installation.
Product Description
Specially designed for Alarko brand combi boilers, this double micro switch i..
$6.07
Ex Tax:$5.05
-250x250.jpg "Baymak - Alarko Combi Boiler Flow Switch")
Brand: Scopo
Model: 4820
Product Features
Compatible Brands: Compatible with various models from Baymak, Alarko, Immergas, Beretta, Fondital and Baxi.
Compatible Models: Baymak Falke, Immergas Star, Baymak Main, Alarko Trendy and others.
Compatible Part Numbers: Beretta R10022752 and 3390001..
$3.22
Ex Tax:$2.69
-250x250.jpg "Buderus Bosch Combi Boiler Water Flow Turbine (Water Flow Sensor) GB022 – 7746900079")
Brand: Bosch
Model: 7746900079
Used in Buderus and Bosch combi boilers, the water flow turbine (water flow sensor) detects water movement in the domestic hot water line so that the boiler ignites at the right time. Compatible with the GB022 series, this part helps the boiler perform stably and safely.
Product Features
Pr..
$137.15
Ex Tax:$114.29
-250x250.jpg "Caleffi 1/2\" Water Flow Sensor (Flow Turbine) – Ferroli Combi Boiler Compatible – 39804220 – Made in Italy")
Brand: Caleffi
Model: 77890006004
Product Description
The Caleffi 1/2 inch water flow sensor (flow turbine) is an important component that detects water movement in combi boiler systems and starts the appliance’s hot water circuit. Made in Italy, this sensor offers long-lasting, reliable performance with superior workmanship. It is..
$32.13
Ex Tax:$26.77
-250x250.jpg "Combi Boiler Water Flow Sensor (Flow Switch Reader) BI1091104 – 172503 – 500641 – 999075 - Alarko, Süsler, Airfel, Baxi, Fugas, Ideal, Biasi, Halstead, Ariston Compatible")
Brand: Chunhui
Model: 77890004014
Product Description
The combi boiler water flow sensor (flow switch reader) is an important part that detects hot water flow in the boiler system and makes the appliance start. This part detects water movement when a tap is opened and starts the boiler’s hot water production. It is fully compatible..
$10.12
Ex Tax:$8.43
-250x250.jpg "Combi Boiler Water Flow Switch - Compatible with Baymak Eco, Luna and Alpha Models")
Brand: I.T.M
Model: RU03
Product Features
This water flow switch is an important spare part designed to monitor and control water flow in combi boilers. It can be used with Baymak Eco, Luna and Alpha models as well as Baxi JJJ005625770 and other compatible systems.
Compatible Models
Baymak Eco
..
$2.22
Ex Tax:$1.85
-250x250.jpg "Demirdöküm Combi Boiler Flow Turbine (Flow Switch) 1/2 – 2-Wire – 53015")
Brand: HUA DI
Model: HAD20
Used in Demirdöküm brand combi boilers, this flow turbine (flow switch) controls the operation of the combi boiler by detecting the water flow in the domestic hot water line. When water flow starts, it sends a signal to the electronic board so that the combi boiler ignites. With its 2-wire design, t..
$6.22
Ex Tax:$5.18
-250x250.jpg "Ferroli Flow Switch and Filling Tap Long Type")
Brand: Eltek S.p.A.
Model: ETK02
Product Information
Compatible Brand: Designed for Ferroli combi boiler systems.
Product Type: Flow switch and filling tap.
Model: Long type.
Material: Quality plastic and metal.
Country of Manufacture: Italy.
Product Description
S..
$16.23
Ex Tax:$13.53
-250x250.jpg "GTE FLCZ20A10 Alarko - Beretta Combi Boiler Water Flow Switch, Protruding")
Brand: Gte
Model: GTE06
The Alarko - Beretta Combi Boiler Water Flow Switch FLCZ20A10 is a high-quality product designed to control water flow in combi boiler systems. Manufactured by GTE Elettromeccanica, this flow switch is compatible with leading combi boiler brands such as Alarko and Beretta. Its protruding design cont..
$5.97
Ex Tax:$4.98