diff --git a/network/h3c/snmp/mode/components/default.pm b/network/h3c/snmp/mode/components/default.pm
index 325208b3c..6be93e67d 100644
--- a/network/h3c/snmp/mode/components/default.pm
+++ b/network/h3c/snmp/mode/components/default.pm
@@ -57,6 +57,7 @@ sub check {
     foreach my $instance (sort $self->get_instance_class(class => { $options{component_class} => 1 })) {
         my $result = $self->{snmp}->map_instance(mapping => $mapping, results => $self->{results}->{$self->{branch} . '.19'}, instance => $instance);
 
+        next if (!defined($result->{EntityExtErrorStatus}));
         next if ($self->check_exclude(section => $options{component}, instance => $instance));
         if ($result->{EntityExtErrorStatus} =~ /entityAbsent/i) {
             $self->absent_problem(section => $options{component}, instance => $instance);
diff --git a/network/h3c/snmp/mode/components/fan.pm b/network/h3c/snmp/mode/components/fan.pm
index 352d70cf8..a4e2b1cfb 100644
--- a/network/h3c/snmp/mode/components/fan.pm
+++ b/network/h3c/snmp/mode/components/fan.pm
@@ -45,6 +45,7 @@ sub check {
     foreach my $instance (sort $self->get_instance_class(class => { 7 => 1 })) {
         my $result = $self->{snmp}->map_instance(mapping => $mapping, results => $self->{results}->{$self->{branch} . '.19'}, instance => $instance);
 
+        next if (!defined($result->{EntityExtErrorStatus}));
         next if ($self->check_exclude(section => 'fan', instance => $instance));
         if ($result->{EntityExtErrorStatus} =~ /entityAbsent/i) {
             $self->absent_problem(section => 'fan', instance => $instance);
diff --git a/network/h3c/snmp/mode/components/psu.pm b/network/h3c/snmp/mode/components/psu.pm
index d89fd0dd1..aa963bf58 100644
--- a/network/h3c/snmp/mode/components/psu.pm
+++ b/network/h3c/snmp/mode/components/psu.pm
@@ -45,6 +45,7 @@ sub check {
     foreach my $instance (sort $self->get_instance_class(class => { 6 => 1 }) ) {
         my $result = $self->{snmp}->map_instance(mapping => $mapping, results => $self->{results}->{$self->{branch} . '.19'}, instance => $instance);
 
+        next if (!defined($result->{EntityExtErrorStatus}));
         next if ($self->check_exclude(section => 'psu', instance => $instance));
         if ($result->{EntityExtErrorStatus} =~ /entityAbsent/i) {
             $self->absent_problem(section => 'psu', instance => $instance);
diff --git a/network/h3c/snmp/mode/components/sensor.pm b/network/h3c/snmp/mode/components/sensor.pm
index 542dcb4fd..f6f5735c5 100644
--- a/network/h3c/snmp/mode/components/sensor.pm
+++ b/network/h3c/snmp/mode/components/sensor.pm
@@ -58,6 +58,7 @@ sub check {
         my $result = $self->{snmp}->map_instance(mapping => $mapping, results => $self->{results}->{$self->{branch} . '.19'}, instance => $instance);
         my $result2 = $self->{snmp}->map_instance(mapping => $mapping2, results => $results, instance => $instance);
         
+        next if (!defined($result->{EntityExtErrorStatus}));
         next if ($self->check_exclude(section => 'sensor', instance => $instance));
         if ($result->{EntityExtErrorStatus} =~ /entityAbsent/i) {
             $self->absent_problem(section => 'sensor', instance => $instance);