diff --git a/checks/cisco_asa_fan b/checks/cisco_asa_fan
index 41302d2a9d81e0566fe63f91bd7c9938d071d593..b0830b02ba12d89b10163c0b1492344c0e002cf5 100644
--- a/checks/cisco_asa_fan
+++ b/checks/cisco_asa_fan
@@ -12,12 +12,10 @@
 # 24.02.2020: rewritten for cmk 1.6.x, includes "temperature.include"
 #             Note: item has ben changed from "Environment: <sensorname" to "Fan <sensorname>
 #             Note: wato/metrics changed to use CMK build in template
-
+# 30.05.2020: cleanup
 
 factory_settings['cisco_asa_fan_default_levels'] = {
     'lower': (2000, 1000),
-    'upper': (6000, 7000),
-    'output_metrics': True,
 }
 
 
@@ -26,7 +24,6 @@ def inventory_cisco_asa_fan(info):
         if sensortype == '10' and sensorstatus == '1' and sensorname != '':
             if sensorname.lower().startswith('fan '):
                 sensorname = sensorname[4:]
-
             yield sensorname, None
 
 
@@ -38,6 +35,7 @@ def check_cisco_asa_fan(item, params, info):
             sensorvalue = int(sensorvalue)
             yield check_fan(sensorvalue, params)
 
+
 check_info['cisco_asa_fan']  = {
     'check_function'     : check_cisco_asa_fan,
     'inventory_function' : inventory_cisco_asa_fan,
@@ -54,5 +52,4 @@ check_info['cisco_asa_fan']  = {
                             ]),
     'includes': ['fan.include'],
     'default_levels_variable': 'cisco_asa_fan_default_levels',
-
-}
+}
\ No newline at end of file
diff --git a/cisco_asa_fan.mkp b/cisco_asa_fan.mkp
index 86b85a76b6ffbdca415ad3264ace01d68ac13bbc..e7f4619e9de693f937a27c631828f49c8a39fc9e 100644
Binary files a/cisco_asa_fan.mkp and b/cisco_asa_fan.mkp differ
diff --git a/packages/cisco_asa_fan b/packages/cisco_asa_fan
index 944709ff6149ac4f5180faa29ef76b18d112ad5c..c2193695cda2323d115b4955a7e26ead7a6e200d 100644
--- a/packages/cisco_asa_fan
+++ b/packages/cisco_asa_fan
@@ -7,4 +7,4 @@
  'title': u'monitor cisco ASA fan sensors',
  'version': '200224.v04',
  'version.min_required': '1.6.0',
- 'version.packaged': '1.6.0p8'}
\ No newline at end of file
+ 'version.packaged': '1.4.0p38'}
\ No newline at end of file