Small karcher pressure washer (Llandaff CF5)

NEEDS TO BE FIXED. Was working this afternoon and then stopped. The internet tells me it’s not uncommon with this model. Please do not attempt to fix this if you don't know what you’re doing. Water and electricity are a dangerous combination. It’s out the front of my house and liable to be picked up by the scrap people so if you want it you’ll need to act fast