diff --git a/app/models/clusters/applications/prometheus.rb b/app/models/clusters/applications/prometheus.rb
index 52c440ffb2f..fa7ce363531 100644
--- a/app/models/clusters/applications/prometheus.rb
+++ b/app/models/clusters/applications/prometheus.rb
@@ -6,7 +6,6 @@ module Clusters
       include PrometheusAdapter
 
       VERSION = '6.7.3'
-      READY_STATUS = [:installed, :updating, :updated, :update_errored].freeze
 
       self.table_name = 'clusters_applications_prometheus'
 
@@ -25,10 +24,6 @@ module Clusters
         end
       end
 
-      def ready?
-        READY_STATUS.include?(status_name)
-      end
-
       def chart
         'stable/prometheus'
       end
diff --git a/app/services/prometheus/adapter_service.rb b/app/services/prometheus/adapter_service.rb
index a791845ba20..3be958e1613 100644
--- a/app/services/prometheus/adapter_service.rb
+++ b/app/services/prometheus/adapter_service.rb
@@ -30,7 +30,7 @@ module Prometheus
       return unless deployment_platform.respond_to?(:cluster)
 
       cluster = deployment_platform.cluster
-      return unless cluster.application_prometheus&.ready?
+      return unless cluster.application_prometheus&.available?
 
       cluster.application_prometheus
     end
diff --git a/spec/models/clusters/applications/prometheus_spec.rb b/spec/models/clusters/applications/prometheus_spec.rb
index 2250ef301aa..81708b0c2ed 100644
--- a/spec/models/clusters/applications/prometheus_spec.rb
+++ b/spec/models/clusters/applications/prometheus_spec.rb
@@ -27,65 +27,6 @@ describe Clusters::Applications::Prometheus do
     end
   end
 
-  describe '#ready' do
-    let(:project) { create(:project) }
-    let(:cluster) { create(:cluster, projects: [project]) }
-
-    it 'returns true when installed' do
-      application = build(:clusters_applications_prometheus, :installed, cluster: cluster)
-
-      expect(application).to be_ready
-    end
-
-    it 'returns false when not_installable' do
-      application = build(:clusters_applications_prometheus, :not_installable, cluster: cluster)
-
-      expect(application).not_to be_ready
-    end
-
-    it 'returns false when installable' do
-      application = build(:clusters_applications_prometheus, :installable, cluster: cluster)
-
-      expect(application).not_to be_ready
-    end
-
-    it 'returns false when scheduled' do
-      application = build(:clusters_applications_prometheus, :scheduled, cluster: cluster)
-
-      expect(application).not_to be_ready
-    end
-
-    it 'returns false when installing' do
-      application = build(:clusters_applications_prometheus, :installing, cluster: cluster)
-
-      expect(application).not_to be_ready
-    end
-
-    it 'returns false when errored' do
-      application = build(:clusters_applications_prometheus, :errored, cluster: cluster)
-
-      expect(application).not_to be_ready
-    end
-
-    it 'returns true when updating' do
-      application = build(:clusters_applications_prometheus, :updating, cluster: cluster)
-
-      expect(application).to be_ready
-    end
-
-    it 'returns true when updated' do
-      application = build(:clusters_applications_prometheus, :updated, cluster: cluster)
-
-      expect(application).to be_ready
-    end
-
-    it 'returns true when errored' do
-      application = build(:clusters_applications_prometheus, :update_errored, cluster: cluster)
-
-      expect(application).to be_ready
-    end
-  end
-
   describe '#prometheus_client' do
     context 'cluster is nil' do
       it 'returns nil' do
diff --git a/spec/services/prometheus/adapter_service_spec.rb b/spec/services/prometheus/adapter_service_spec.rb
index 335fc5844aa..505e2935e93 100644
--- a/spec/services/prometheus/adapter_service_spec.rb
+++ b/spec/services/prometheus/adapter_service_spec.rb
@@ -22,7 +22,15 @@ describe Prometheus::AdapterService do
     context "prometheus service can't execute queries" do
       let(:prometheus_service) { double(:prometheus_service, can_query?: false) }
 
-      context 'with cluster with prometheus installed' do
+      context 'with cluster with prometheus not available' do
+        let!(:prometheus) { create(:clusters_applications_prometheus, :installable, cluster: cluster) }
+
+        it 'returns nil' do
+          expect(subject.prometheus_adapter).to be_nil
+        end
+      end
+
+      context 'with cluster with prometheus available' do
         let!(:prometheus) { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
 
         it 'returns application handling all environments' do