Standard Universal Thermocouple 900mm Product Code: 89191

900mm. Will fit most gas boilers.


  • Must be Fitted by a Gas Safe Registered Installer


Length: 900mm.
Additional Information
Technical Specification
  • Brand : Unbranded
  • Product Length : 900 mm
  • Product Type : Standard Universal Thermocouple
  • Boiler Accessory Type : Thermocouplers
  • Total Product Weight : 0.053 kg
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


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€6.55 Incl. 20% VAT

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Standard Universal Thermocouple 900mm is rated 4.5 out of 5 by 41.
Rated 5 out of 5 by from Does what you expect it to do! Got home to find that the central heating pumps were whirring, but the boiler was cold. An old boiler, so went through the process of lighting the pilot light. Lit OK, but 20 seconds later it had gone out. Same on second attempt. Gas engineer friend diagnosed a faulty thermocouple. Great that local ScrewFix is open to 9pm. Took engineer about 30 mins to fit. House now nice and warm again!
Date published: 2019-03-28
Rated 5 out of 5 by from Quick Solution Readily available for a quick repair to a very old but reliable boiler. I cannot comment on reliability after a few weeks but its been fine up to now. If its as good as the one it replaced it should be good for another ten years!
Date published: 2018-12-17
Rated 5 out of 5 by from Universal Thermocouple Standard Universal Thermocouple 900mm (89191), saw online and bought at local store and installed same day (night) perfect end to a day, about 2months ago and still working. Can recommend just make sure you have the correct fittings, although old fittings fit sometimes.
Date published: 2018-12-02
Rated 5 out of 5 by from Never without one Having an old boiler it is useful to have one just incase. Thermocouples dont last forever so if I have a boiler issue a quick call to my gas safe mate and boiler up and running again.
Date published: 2018-11-10
Rated 4 out of 5 by from Fix Boiler Pilot Collected 30 mins after I placed the order online. Exactly what I wanted. Fit perfect. Boiler is running again 1 hour later. ACE. What more can I say.
Date published: 2018-07-21
Rated 5 out of 5 by from Boiler fixed! Needed this to replace one on an ancient boiler, luckily it was the therma couple that had gone so it was an easy fix. The part was easy to order and collect and I will be using Screwfix again.
Date published: 2018-03-16
Rated 5 out of 5 by from Boiler Spare I have an old gas boiler and keep this thermocouple as spare when the pilot fails good value
Date published: 2018-03-01
Rated 5 out of 5 by from Thermocouple Great simple repair with all the fittings you need.
Date published: 2018-02-06
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