Truma combi boiler

[Teddydog1]

Help !
Truma combi boiler fitted, having trouble getting power to cp plus controller, 12v connected to controller protected by 1 amp fuse
Any ideas what I’m doing wrong

 

[David and Sally]

Give more details please. Is the fuse ok and have you cleaned the fuse contacts?

 

[Teddydog1]

Fuse is good and contacts are clean yes

 

[RandallC]

Checked for volts with DVM or test lamp?

This is a duplicate post