Checking a fuse
Is it possible to check if a fuse is working using a multimeter?
Our iBoost has stopped working and there is a fuse where it's plugged into the mains. It's a 13A fuse and I don't have a spare to hand – wanted to see if it's the fuse or if the iBoost itself has died.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Posted by: @editorIs it possible to check if a fuse is working using a multimeter?
Our iBoost has stopped working and there is a fuse where it's plugged into the mains. It's a 13A fuse and I don't have a spare to hand – wanted to see if it's the fuse or if the iBoost itself has died.
If your multimeter has a resistance range, then remove the fuse and check for continuity. If the reading is showing open circuit, then obviously the fuse has blown.
Another simple way is to fit the fuse to a different item of equipment, lamp, hairdryer or similar, and check that it works. Obviously, don't fit a lower rated fuse to equipment with a higher operating rating.
- 22 Forums
- 2,029 Topics
- 44.2 K Posts
- 40 Online
- 3,235 Members
Join Us!
Trusted Installers
Struggling to find a reliable heat pump installer? A poor installation can lead to inefficiencies and high running costs. We now connect homeowners with top-rated installers who deliver quality work and excellent service.
✅ Verified, trusted & experienced installers
✅ Nationwide coverage expanding
✅ Special offers available
Latest Posts
-
RE: Ideal Logic ASHP - change from 55°C to 35°C Heating?
Many thanks JamesPa - that's great advice which is well...
By Tomdad , 1 hour ago
-
RE: Bathroom Radiator replacement
@rob-nezard can you please offer your professional advi...
By Mars , 2 hours ago
-
The radiator output at any given ft will increase if th...
By JamesPa , 2 hours ago
-
RE: Performance of Heat Pumps in Mild Weather
@heatgeek The switches to the flow rate were manua...
By RobS , 4 hours ago
-
-
RE: Questions on my Hitachi Yutaki SCombi Heat Pump
OK, thats good and low. With low flow temperatures lik...
By JamesPa , 21 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
@jamespa “They are all equal but, some are more equal t...
By Toodles , 21 hours ago
-
RE: Is it KISS or constant – weather compensation vs. set flow temperature?
@cliffhanger Mine has a 'space heating off' setting! O...
By JamesPa , 1 day ago
-
RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
Thank you, that helped in my understanding. I believe ...
By trebor12345 , 1 day ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
@old_scientist As another example of errors / differenc...
By Toodles , 1 day ago
-
RE: Replacing Worcester oil boiler with an ASHP
Is this something you are thinking of doing? Or has thi...
By Cliff-Arnold , 2 days ago
-
RE: Say hello and introduce yourself
Hi Mars Thanks for inviting me to join the forum, I h...
By Cliff-Arnold , 2 days ago
-
RE: Who's your electricity provider and what's your tariff?
@agentgeorge Not with Eon Next. The only reson I left O...
By Andris , 2 days ago
-
RE: How hard and expensive would it be to change panel and add battery?
The difficulty with this discussion is that it's referr...
By Transparent , 2 days ago
-
Is this normal? Click of the DHW returning to space heating
This has been bugging me for a while and I just wanted ...
By Grantmethestrength , 3 days ago
-
@sandman1600 you need to measure whats going on real...
By davidnolan22 , 4 days ago
-
@brandon-r is this a project that you could assist with...
By Mars , 4 days ago
-
Has anyone installed these on their ASHP fed radiator s...
By Grantmethestrength , 5 days ago
-
Just an update on the responses received by Smart Heati...
By Eliuccio , 5 days ago
-
RE: Is your gut better than Math
By SUNandAIR , 5 days ago