It would have been wise to disconnect the condense and divert it into a bucket and discharge pipework into another bucket whilst you were away and the boiler was off. Water in either bucket upon your return would have ruled certain things in or out.
You can still do this but boiler has to not run to check discharge from condense is/is not leak related.
You can still do this but boiler has to not run to check discharge from condense is/is not leak related.