This part is fitted to the older standard efficiency boilers that have a permanent pilot light, they work in a way by making a small electrical charge which activates an electromagnet to open a valve to allow gas or water to go through the system. they are an early way of detecting if there is a flame present. They are made from 2 dissimilar metals that when heated generates a small electrical current that is then sent down to the gas valve to hold in the pilot solenoid on the gas valve allowing the user to let go of the knob.

If the pilot light goes out for any reason the thermocouple cools down, the electrical current decreases allowing the pilot solenoid to drop out. Once the pilot solenoid has dropped out the gas to the burner is extinguished and the boiler is switched off for safety.

Baxi 225496 Solo Thermocouple

Part: 225496

Price: £6.95
Baxi 102005 Bermuda Thermocouple

Part: 102005

Price: £8.95
Ravenheat 5012076 Thermocouple

Part: 5012076

Price: £24.59
Main Thermocouple 5110886

Part: 5110886

Price: £52.09
Main Thermocouple 402905

Part: 402905

Price: £8.95
Potterton Thermocouple 243215

Part: 243215

Price: £23.95
Potterton Thermocouple 786/9641

Part: 786/9641

Price: £7.85
Saunier Duval S202432 Thermocouple

Part: S202432

Price: £15.18
Main Thermocouple 0549509

Part: 0549509

Price: £11.18
Baxi Q309A2788 Thermocouple

Part: Q309A2788

Price: £8.37
Myson Apollo Thermocouple 102005

Part: 102005

Price: £8.95
Valor Thermocouple 0547319

Part: 0547319

Price: £13.26
Baxi 232159BAX Solo 2 Thermocouple

Part: 232159BAX

Price: £7.95
Potterton Thermocouple 0549509

Part: 0549509

Price: £12.12
Main Thermocouple 402S2460

Part: 402S2460

Price: £6.64
Myson 402905 Housewarmer Thermocouple

Part: 402905

Price: £8.95
Ferroli 36702070 Optima Thermocouple

Part: 36702070

Price: £9.00
Potterton Prima Thermocouple 402918

Part: 402918

Price: £8.95
Chaffoteaux 60028297 Miniflame Thermocouple

Part: 60028297

Price: £40.37
Glowworm S900000 Fuelsaver Thermocouple

Part: S900000

Price: £8.95
Thorn Apollo Thermocouple 102005

Part: 102005

Price: £8.95
Potterton Thermocouple 243644

Part: 243644

Price: £10.45
Glowworm S900004 Fireblaze Thermocouple

Part: S900004

Price: £8.78
Glowworm S202432 Spacesaver Thermocouple

Part: S202432

Price: £15.18
Potterton 10/17461 Thermocouple

Part: 10/17461

Price: £10.75
Worcester Bosch 87072020180 Thermocouple

Part: 87072020180

Price: £22.11
Potterton Thermocouple 226262

Part: 226262

Price: £14.25
Main Thermocouple Nut 092136

Part: 092136

Price: £6.35
Potterton Thermocouple Nut 092136

Part: 092136

Price: £6.35
Potterton Thermocouple 225496BAX

Part: 225496BAX

Price: £9.45
Ariston Thermocouple 60057703

Part: 60057703

Price: £15.20
Main Thermocouple 243215

Part: 243215

Price: £23.95
Ferroli 39801490 Optima 900 Thermocouple

Part: 39801490

Price: £21.64
Ideal 056249 Concord Thermocouple

Part: 056249

Price: £27.30
Potterton Thermocouple 10/13848

Part: 10/13848

Price: £10.75
Ideal 003876 Mexico Thermocouple

Part: 003876

Price: £8.95
Baxi 226262 Ebony & Gasflame Thermocouple

Part: 226262

Price: £14.25
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