Table of content
Table of content
1
Preface ............................................................................................................................................... 6
1.1
General guidelines .............................................................................................................................. 6
1.2
Syntax.................................................................................................................................................. 6
1.3
Safety instructions structure ................................................................................................................ 7
1.3.1
Safety instructions structure ................................................................................................................ 7
1.3.2
Warning levels ..................................................................................................................................... 7
1.3.3
Safety symbol ...................................................................................................................................... 8
1.3.4
Warning symbols ................................................................................................................................. 8
1.3.5
Imperative symbols ............................................................................................................................. 8
1.3.6
Information symbol .............................................................................................................................. 8
2
General safety instructions .............................................................................................................. 9
2.1
Qualification of service personnel ....................................................................................................... 9
2.2
Dangers ............................................................................................................................................. 10
3
Maintenance ..................................................................................................................................... 12
3.1
Safety check acc. to DIN VDE 0701-0702 ........................................................................................ 17
4
Troubleshooting .............................................................................................................................. 18
4.1
General electrical faults ..................................................................................................................... 19
4.2
Faults of the heating system ............................................................................................................. 21
4.3
Faults of the cooling system .............................................................................................................. 23
4.4
Functional check of the cooling system ............................................................................................ 25
4.5
Errors in the humidification module ................................................................................................... 27
5
Repair work at the housing ............................................................................................................ 34
5.1
Replacing the housing cover at the lower front ................................................................................. 34
5.2
Replacing the pen recorder (-
14P1
) .................................................................................................. 35
5.3
Replacing the rear panel ................................................................................................................... 36
5.4
Replacing the silicone access port .................................................................................................... 37
5.5
Replacing the castors ........................................................................................................................ 39
6
Repair work at the outer door ........................................................................................................ 41
6.1
Aligning the outer door ...................................................................................................................... 41
6.1.1
Aligning the door hinges .................................................................................................................... 41
6.1.2
Aligning the adjustable door holder lug with pulley ........................................................................... 42
6.2
Checking and replacing outer door components .............................................................................. 43
6.2.1
Dismounting the interior side of the outer door ................................................................................. 43
6.2.2
Replacing the door hinge cover ........................................................................................................ 45
6.2.3
Checking and replacing the interior side of the outer door ............................................................... 46
6.2.4
Replacing the door ............................................................................................................................ 48
6.2.5
Replacing the door contact switch (
-3S1
) ........................................................................................ 49
6.2.6
Replacing the outer door gasket ....................................................................................................... 50
6.3
Replacing the triangle instrument box ............................................................................................... 51
6.3.1
Dismantling the instrument box ......................................................................................................... 51
6.3.2
Replacing of components of the triangle instrument box .................................................................. 52
6.4
Replacing the closing device of the outer door ................................................................................. 54
7
Repair work at the inner and outer chamber ................................................................................ 56
7.1
Replacing the glass door ................................................................................................................... 56
7.2
Replacing the closing device of the glass door ................................................................................. 57
7.3
Replacing the glass door gasket ....................................................................................................... 58
7.4
Replacing the fan
(-4M1
) ................................................................................................................... 59
7.5
Replacing the frame gasket .............................................................................................................. 62
7.6
Checking and replacing the frame heating wire (
-4E3
) .................................................................... 63
7.7
Replacing the inner chamber and the gaskets between the inner and the outer chamber .............. 64
7.8
Testing and replacing the heating element (
-4E1
) ............................................................................ 66
7.9
Checking and replacing the inner chamber Pt 100 temperature sensor (
-3B1
)................................ 69
7.10
Checking and replacing the humidity sensor and the sensor board (-
3B2
) ...................................... 71
7.11
Replacing the temperature fuse 110°C /
230°F
(
-1F2
) ...................................................................... 74
8
Repair work at electric and electronic components .................................................................... 75
8.1
Activating and replacing the miniature circuit breaker (
-1F1
) ........................................................... 76
4
Service Manual KBF (E5.2) 04-2015