Fuse (1A) blows on the PCB in the Potterton Netaheat 10-16?
The 1 amp fuse located on the PCB of the Potterton Netaheat 10-16 MKIIF blows at start up. Pressure switch seems OK adn stats are all working. Anyone know what the fuse protects?
FUSE WILL ONLY BLOW WHEN A DEAD SHORT IS PRESENT TRY DISCONECTING PUMP AND TRY TO FIRE BOILER REMEMBER ISOLATE FIRST AND MAKE SAFE CABLES OTHER WISE MAY BE FAN