Viessmann Thermistors
The thermistor decreases the circuit resistance as the temperature increases. The electronic control board sends a current to the thermistor and can tell whether an increase or decrease in heat is needed by the resistance provided by the thermistor.
Viessmann 7819967 Boiler Sensor - 3 Wb1/Wb2 - Combi/System/System ERP
Part No: 2320068 MPN: 7819967
£76.20 inc VAT
In stock - Next day delivery available
Free UK DeliveryVIESSMANN 7828749 FLOW SENSOR
Part No: 2321002 MPN: 7828749
£106.46 inc VAT
In stock - Next day delivery available
VIESSMANN 7825487 FIXED HIGH LIMIT, 210F/99C WB2
Part No: 2320066 MPN: 7825487
£26.28 inc VAT
In stock - Next day delivery available
VIESSMANN 7822767 SENSOR 15 (FLUE GAS) WB1B / WB2B
Part No: 2320522 MPN: 7822767
£36.08 inc VAT
In stock - Next day delivery available
VIESSMANN 7179114 SENSOR 5 (DHW, IMMERSION)
Part No: 2320322 MPN: 7179114
£84.46 inc VAT
In stock - Next day delivery available
VIESSMANN 7831404 HIGH LIMIT SWITCH 100C-6 36TXVE21
Part No: 2321104 MPN: 7831404
£47.52 inc VAT
Available in 5-7 working days
Free UK DeliveryVIESSMANN 7837053 OUTDOOR TEMPERATURE SENSOR NTC
Part No: 2321234 MPN: 7837053
£100.00 inc VAT
Available in 5-7 working days
Free UK DeliveryVIESSMANN 7438702 SENSOR 5 (DHW, NTC 10 OHM)
Part No: 2320610 MPN: 7438702
£100.00 inc VAT
Available in 5-7 working days
Free UK DeliveryVIESSMANN 7822897 DIFFERENTIAL PRESS. SENSOR WB2
Part No: 2320250 MPN: 7822897
£125.33 inc VAT
Available in 5-7 working days
Free UK DeliveryVIESSMANN 7834379 BUFFER TEMPERATURE SENSOR NTC 10K
Part No: 2321232 MPN: 7834379
£112.82 inc VAT
Available in 5-7 working days
Free UK DeliveryVIESSMANN 7820148 SENSOR 1 (OUTDOOR)
Part No: 2320318 MPN: 7820148
£108.94 inc VAT
Available in 5-7 working days
VIESSMANN 7831913 COLLECTOR TEMPERATURE SENSOR NTC
Part No: 2321180 MPN: 7831913
£156.83 inc VAT
Available in 5-7 working days
VIESS 7812522 SENSOR HOUSING
Part No: 2320288 MPN: 7812522
£77.16 inc VAT
Available in 5-7 working days
VIESSMANN 7817326 SENSOR WELL G1/2 L=150 W. BRACKET
Part No: 2320618 MPN: 7817326
£37.62 inc VAT
Available in 5-7 working days
VIESSMANN 7823489 REED SENSOR PACKAGED
Part No: 2320350 MPN: 7823489
£46.51 inc VAT
Available in 5-7 working days