10 E10 comp monitor codes present due to bad 40uf compressor capacitor. Waterfurnace confirmed parts and labor warranty good until 1-7-2030. Replaced 40uf capacitor with new capacitor and test ran operation. During test run, found that ground loop water pressure was low at 30psi. Pressurized system to 60psi with house water. System is currently running with no other issues found or suspected.