1541 is an an internal code that the IRS uses to identify returns
that have been "Delayed". The doesn't mean there is something wrong with
your return, it could simply be that the IRS has an overflow of returns
at this time and is behind schedule on issuing refunds. There are
different reasons accounting for the 1541 reference number.
To be absolutely sure on the status of your refund, I would recommend to contact the IRS directly mention the reference the code 1541 to them.