Question

My Alde boiler system is non-responsive— boiler is cold, control panel is blank.

Answer

Here are some things to check:

• No 12 V supply to boiler or control panel
• The control panel is not plugged in
• T3.15 A 20 mm fuse(s) in boiler blown.
• 5 A fuse in 12 V consumer unit is blown
• The thermal fuse on PCB has sprung (3010 only)
• The leisure battery is defective
• The battery charger is defective