Morrisman
Member
- Messages
- 7,303
- Location
- Staffordshire, England
I’ve had the same, shower quit one day, and a quick look at the pull switch showed the housing all brown and blistered on one side. I’m not sure how far away from bursting into flames it was.My daughter asked me to have a look at her place today as her shower wasn't working.
I found the on/off feed switch on the outside of the bathroom was knackered as it was jammed "on".
Using my Martindale EM pen showed AC was present at the shower, so I isolated at fuse box and checked the switch. All 4 connections were so loose it took no pressure to turn them, & sure enough there was obvious heat damage.
Live had continuity, but the neutral had none.
(Oh yes, the feed was connected to the load out terminals & vice versa).
I bypassed the switch to check the shower - all ok.
(I'm not a qualified Spark btw - my time was spent working on industrial generators. I know terminals can loosen with heat cycles over time - but these were very loose, suggesting they'd never been tightened properly by a "proper" Sparks).
I pulled it apart and found lots of melted insulation inside. A new switch was installed, wires trimmed back to good insulation and double checked tightness. All was well after that.