Flight crew reported refusing aircraft due to unaddressed systems malfunctions from an inbound flight. Additional ground time was required to return the aircraft to service.

Narrative

The aircraft arrived in ZZZ with approximately 10 status messages; spoiler failure; half of the gear indicator lights out; hot brakes; blown tire and EE (Electronics Exhaust) overboard valve opened in flight. The cockpit crew boarded the aircraft; I stopped to brief the Supervisor on the flight while the FO (First Officer) and LCA (Line Check Airman) proceeded to the flight deck. Upon reaching the flight deck the LCA was talking with the previous Captain about the write ups he was entering; at which point I was briefed on the matter. Shortly afterwards; Maintenance showed up to address the write ups. Maintenance attributed the status messages to an over serviced nose strut. After servicing the nose strut; electrical power was removed from the aircraft to clear the status messages. once power was restored the status messages where cleared and a test on the PSCU (Proximity Switch Control Unit) was conducted to make sure there where no faults. Fans where placed on the wheels to cool the brakes and two tires where changed. Maintenance said the plane was good to go! However as a crew; we felt the action taking by Maintenance did not sufficiently account for the other faults because the systems where unrelated. Further more; the EE overboard valve was not written up by the previous captain or Maintenance as well as the spoilers. While discussing the matter with Maintenance; the LCA spoke with the Supervisor as to inquire the issue further which seemed odd to the Supervisor as well. I made the collaborative decision with the LCA and FO and in the interest of safety and a lack of satisfactory explanation from Maintenance to refuse the aircraft. We felt that the issue needed to be more thoroughly looked into. As Captain; I did not feel it safe to depart ZZZ with convective activity and a possibility that we may face the same maintenance issues.