Hi
I had exactly the same problem last year with my Control 24 when it blew after a power cycle. The Thermistor was blown so I tried to source a replacement then I found the company Avanti Power Repairs Ltd, 35A Rowan Road, Tadley, Hampshire, RG26 3RQ, UK
+44 (0) 1189-820 911
[email protected]
They did the repair in a week for £95 plus carriage and vat, just took the supply out the Control 24 package it up and sent it to them. Came back packaged better than I sent it.
Good luck
Scotsman