Electric fan motors?

[Lazy-Ferret]

3 years ago, we purchased a portable aircon unit for the caravan. It is 2 separate units with an umbilical cord between them, so one bit hangs outside the van, and the cord passes through the window, to the cooling unit on the inside.

It's quite a small unit, only 2400BTU, but was perfect for the ferrets, keeping their area safely cool.

This weekend the internal fan died, and upon closer inspection, I found one of the windings had burnt out. I contacted the manufacturers, to be told they do not sell spares, and as it is 3 years old, it's out of warrantee, but if I would like to send it back, they will see if it can be fixed and give me a quote!!! It weighs in at 20Kg, and is a real pig to box, so I am loathed to spend money sending it back, to then be told they want £150 or more to fix it and return it. I would rather use the money to get a new small portable domestic unit I have seen, which has higher power, and not much bigger than just one of the current units.

Looking further into it, it's a cheap Chinese unit, where anyone can order 300, and sell them under their own name, and the motor is actually produced by the same people who make the whole unit. There are no markings on the motor, other than 230V/50Hz...

So any of you guys have an idea of what sort of wattage motor I would need to drive a 230mm, 5 bladed plastic fan which has quite a steep rake on the fins.

I have been looking at other motors, but they all seem much bigger than the one that was in there, and it's a lot of money to pay out on a whim, if I have got it wrong.

Anyone help?