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Mend Ravenheat LS100 T Heating Boiler

What causes the 2 amp fuse to blow on Ravenheat LS100 T?

What can cause the 2 amp internal fuse to blow on the Ravenheat LS 100 T?
I turn on the boiler for either HW or CH or both and it will run fine for around 20 seconds then the internal 2 amp fuse blows with a flash and a loud 'pop'.

Deadloss
June 2009

Ravenheat Ravenheat LS100 T Heating, Home Heating Systems Ravenheat Heating Boiler

either fan all pump sticking.if u keep doing it you blow pcb and it be two required parts.
bigwig liverpool

bigwig
June 2009

That will be an Electrical Fault.
You should get a RGI to diagnose the cause

www.elanar.co.uk
June 2009

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Ravenheat LS100T Fuse Blowing - Causes & Fixes