$server = "<ServerName>"
$sess = New-PSSession -ConnectionURI "http://$server/PowerShell" -ConfigurationName Microsoft.Exchange -Authentication Kerberos
Import-PSSession $sess

$unhealthy_sets = Get-HealthReport -Identity $server | Where-Object {$_.AlertValue -eq "Unhealthy"}

if ($unhealthy_sets.Count -gt 0) {
    
    # all significant info is found, of all places, in the event logs
    # this will usually take forever
    # for practical application, define dynamic XPath filters and apply those, *especially* if doing this remotely

    $events = Get-WinEvent -ComputerName $server -LogName Microsoft-Exchange-ActiveMonitoring/MonitorDefinition | Foreach-Object { ([xml]($_.ToXML())).Event.UserData.EventXML }
    # we actually don't need probe definitions at this stage
    #$probes = Get-WinEvent -ComputerName $server -LogName Microsoft-Exchange-ActiveMonitoring/ProbeDefinition | Foreach-Object { ([xml]($_.ToXML())).Event.UserData.EventXML }
    $results = Get-WinEvent -ComputerName $server -LogName Microsoft-Exchange-ActiveMonitoring/ProbeResult | Foreach-Object { ([xml]($_.ToXML())).Event.UserData.EventXML }

    foreach ($uhs in $unhealthy_sets) {
        Write-Host "Unhealthy set: $($uhs.HealthSet)"
        $unhealthy_monitors = Get-ServerHealth -Identity $server  -HealthSet $uhs.HealthSet | Where-Object {$_.AlertValue -eq "Unhealthy"}
        foreach ($uhm in $unhealthy_monitors) {
            Write-Host "- Unhealthy monitor: $($uhm.Name) for target $($uhm.TargetResource)"
            $uhprobes = $events.Where({$_.Name -like "*$($uhm.Name)*"}) | Select -ExpandProperty SampleMask -Unique
            foreach ($uhp in $uhprobes) {
                $results.Where({$_.ResultName -like $uhp}) | select Error
            }
        }
    }

}

Remove-PSSession $sess