Active job

Replace this orange pump thing in my heat pump.

Hi, a while back my heatpump was making a weird noise, and someone helpfully removed this orange component, which stopped the noise. Apparently though, without this orange thing, it won't cool. In this weather, I'd love to get the orange thing replaced. Photo is the component that was removed, I'm looking for someone to supply and install a new one. It's a reasonably recent Fujitsu high-wall unit, easy access to the outside unit, brand new switchboard and wiring (if that's relevant).