Examples only (outcomes may differ in individual cases):
A faulty toaster sets fire to Ben’s kitchen. Ben is entitled to compensation to make up for that loss and damage, not just to a refund for the faulty toaster.
Ivana recently bought a car, which leaked oil on her driveway. A neighbour’s dog ran through the oil and into her house, dirtying the carpet. The car dealer would not have to pay for carpet cleaning, as the dealer could not predict that a dog would run through the oil and into the house – the cost could not have been expected to result from the breach of a consumer guarantee.
Russell’s washing machine breaks down due to a fault. As a result, there is water damage to carpet in part of the house. The supplier would be responsible for the cost of replacing the carpet damaged by flooding from the faulty washing machine, because this loss could have been expected to result from the breach of a consumer guarantee.