OK the appliance is almost 11 years from the information that you have provided.
The flashing light indicates condenser pump is clogged or faulty.
Check this IMAGE and try this:
Unplug the dryer and pull it out.
Then remove the condenser and open the lid (part#509 in the image).
Clean it the space as much as you can.
Then remove the rear panel located at the bottom right of the appliance.
You will see condenser pump (part#512), remove the pump and give it a good clean.
Make sure it is not clogged and hoses attached are also clean.
Then reconnect everything and plug it back, it should work.
Let me know how it goes.
If you have any further questions, please do not hesitate to ask!
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