diff --git a/checks/cisco_asa_fan b/checks/cisco_asa_fan
index 9c0b46ba8a5d176612cd250d8e3252529e98f673..41302d2a9d81e0566fe63f91bd7c9938d071d593 100644
--- a/checks/cisco_asa_fan
+++ b/checks/cisco_asa_fan
@@ -9,50 +9,41 @@
 # 02.07.2016: fixed crit/warn to >=
 # 09.01.2018: added minimum level
 # 03.05.2018: fixed inventory for empty sensorname (asa context)
-#
+# 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
 
 
-cisco_asa_fan_default_levels = (6000,7000,2000)
+factory_settings['cisco_asa_fan_default_levels'] = {
+    'lower': (2000, 1000),
+    'upper': (6000, 7000),
+    'output_metrics': True,
+}
 
 
 def inventory_cisco_asa_fan(info):
     for sensorname, sensortype, sensorvalue, sensorstatus, sensorunits in info:
         if sensortype == '10' and sensorstatus == '1' and sensorname != '':
-            yield sensorname, cisco_asa_fan_default_levels
+            if sensorname.lower().startswith('fan '):
+                sensorname = sensorname[4:]
 
+            yield sensorname, None
 
-def check_cisco_asa_fan(item, params, info):
-    warn, crit, minimum = params
-    infotext = 'item not found(!)'
-    state = 3
-    perfdata = []
 
+def check_cisco_asa_fan(item, params, info):
     for sensorname, sensortype, sensorvalue, sensorstatus, sensorunits in info:
+        if sensorname.lower().startswith('fan '):
+            sensorname = sensorname[4:]
         if sensorname == item and sensortype == '10':
             sensorvalue = int(sensorvalue)
-            infotext = '%d rpm' % (sensorvalue)
-            perfdata = [('rpm', sensorvalue, warn, crit)]
-            if sensorvalue >= crit:
-                infotext += '(>=%d)(!!)' % crit
-                return 2, infotext, perfdata
-            elif sensorvalue >= warn:
-                infotext += '(>=%d)(!)' % warn
-                return 1, infotext, perfdata
-            elif sensorvalue < minimum:
-                infotext += '(<%d)(!!)' % minimum
-                return 2, infotext, perfdata
-            else:
-                return 0, infotext, perfdata
-
-    return state, infotext, perfdata
-
+            yield check_fan(sensorvalue, params)
 
 check_info['cisco_asa_fan']  = {
     'check_function'     : check_cisco_asa_fan,
     'inventory_function' : inventory_cisco_asa_fan,
-    'service_description': 'Environment: %s',
+    'service_description': 'Fan %s',
     'has_perfdata'       : True,
-    'group'              : 'cisco_asa_fan',
+    'group'              : 'hw_fans',
     'snmp_scan_function' : lambda oid: oid('.1.3.6.1.2.1.1.1.0').lower().startswith('cisco adaptive security appliance'),
     'snmp_info'          : ('.1.3.6.1.2.1', [
                              '47.1.1.1.1.7',   #ENTITY-MIB::entPhysicalName
@@ -61,5 +52,7 @@ check_info['cisco_asa_fan']  = {
                              '99.1.1.1.5',     #ENTITY-SENSOR-MIB::entPhySensorOperStatus
                              '99.1.1.1.6',     #ENTITY-SENSOR-MIB::entPhySensorUnitsDisplay
                             ]),
+    'includes': ['fan.include'],
+    'default_levels_variable': 'cisco_asa_fan_default_levels',
 
 }
diff --git a/cisco_asa_fan.mkp b/cisco_asa_fan.mkp
index db7ab412dddf0558c5893df239408755d0f4c6c6..4e78f1a56cf55e6ab5e56f351da745992fd257ca 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 65d2e4db33c2f5d24be04e57f27b9b765f705ca3..944709ff6149ac4f5180faa29ef76b18d112ad5c 100644
--- a/packages/cisco_asa_fan
+++ b/packages/cisco_asa_fan
@@ -1,14 +1,10 @@
-{'author': 'Th.L. (thl-cmk[at]outlook[dot]com)',
- 'description': 'monitor Cisco ASA fan sensors\nMinimum/Warning/Critical rpm level can be configured via wato',
+{'author': u'Th.L. (thl-cmk[at]outlook[dot]com)',
+ 'description': u'Monitor Cisco ASA fan sensors\n\nRewrite for CMK 1.6x to include "fan.include"\n\nNOTE: changed item from Environment: <Sensorname> to Fan <Sensorname>\n',
  'download_url': 'https://thl-cmk.hopto.org',
- 'files': {'checkman': ['cisco_asa_fan'],
-           'checks': ['cisco_asa_fan'],
-           'pnp-templates': [],
-           'web': ['plugins/wato/cisco_asa_fan.py',
-                   'plugins/metrics/cisco_asa_fan.py']},
+ 'files': {'checkman': ['cisco_asa_fan'], 'checks': ['cisco_asa_fan']},
  'name': 'cisco_asa_fan',
- 'num_files': 4,
- 'title': 'monitor cisco ASA fan sensors',
- 'version': '20180503.v03a',
- 'version.min_required': '1.2.6p16',
+ 'num_files': 2,
+ '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