A new fridge iced up and unfortunately somehow the plug was disturbed and came loose. So overnight the ice melted and the water flowed onto the floor where it seeped into the chipboard underneath.
Insurance is assessing the damage and presumably will be ok for repairing the floor.
My questions relates to the excess.
Can one puruse the retailer for the excess? The retailer has agreed the fridge is to be sent away for assessment as it is under warranty and shouldn't be icing up.
You can try, but it's unlikely that you'll get anything unless you take it through the disputes tribunal. You likely chose an excess amount weighing up a higher excess vs. higher premiums. In any case the retailer had nothing to do with that decision, so it doesn't make sense that they should pay your arbitrary premium due to a faulty product. If, however, you didn't have insurance (or decide not to proceed with your claim) then it may be worth making a claim under the Consumer Guarantees Act and if successful you MAY be able to claim damages to cover the entire repair.
Or not - The big hole in your argument either way is that "somehow the plug was disturbed": unless you can show that was ALSO due to a design/manufacturing fault, it's possible that any claim against the retailer/manufacturer would be limited to replacement of the faulty fridge.
But I'm no lawyer, so this could all be wrong.