That code most likely means one of the relays has failed, it would seem one isn't closing when instructed to.
Are you familiar with relays? You could rig up some test gear and test them yourself if you understand how they function.
Usually a low current throws a magnetic switch for a higher current.
You could use a small battery to 'throw' the relay and a multimeter to check for continuity.
You would need to identify the relays and search their pin assignments.
I would try again for a repair centre, even if a television or similar, as you know it is likely to be a relay fault, more people might help.
With no diagnosis what so ever, many people would be scared to take the job on.
If you tried asking for someone to test the relays, they may feel more comfortable with this.