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S 250i
Miele S 250i Technical Manual
60 pages
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TECHNICAL INFORMATION
S 2xx, S 3xx and S 4xx Canister Vacuums
©
2012 Miele USA
2
Table of Contents
Default Chapter
2
Table of Contents
2
1 Construction and Design
7
General Information
7
Cleaning and Care
7
Vacuums and Accessories
7
Dust Compartment
7
Figure 1-1: S 247I, S 248I
8
Figure 1-2: S 249I, S 250I
8
Figure 1-3: S 251I, S 252I
8
Figure 1-4: S 254I
8
Figure 1-5: S 255I, S 256I
8
Figure 1-6: S 234I
9
Figure 1-7: S 269I, S 270I
9
Figure 1-8: S 271I, S 272I
9
Figure 1-9: S 274I
9
Figure 1-10: S 275I, S 276I
9
Figure 1-11: S 278I
9
Figure 1-12: S 280I, S 282I
10
Figure 1-13: S 300I, S 301I
10
Figure 1-14: S 310I, S 313I
10
Figure 1-15: S 321I, S 324I, S326I
10
Figure 1-16: S 334I, S 336I, S 338I
10
Figure 1-17: S 342I
11
Figure 1-18: S 344I
11
Figure 1-19: S 346I, S 347I, S 348I
11
Figure 1-20: S 400I, S 401I, S 402I, S 408I
11
Figure 1-21: S 410I
11
Figure 1-22: S 421I, S 422I, S 424I, S 426I
11
Type/Construction
12
S 3Xx Components
12
Figure 1-23: S 434I, S 436I, S 438I
12
Figure 1-24: S 442I
12
Figure 1-25: S 444I
12
Figure 1-26: S 446I, S 447I, S 448I
12
Figure 1-27: S 3Xx Components
13
S 4Xx Components
14
Figure 1-28: S 4Xx Components
14
Features
15
Technical Data
18
S 247I - S 256I
18
S 269I - S 282I
18
S 3Xx
19
S 4Xx
19
Accessories
20
Standard Accessories
20
Optional Accessories
20
Accessories with New Locking System (S 2Xx Only)
20
Figure 1-29: 9.3Cm Adapter Sleeve to Connect New and Old Accessories
20
Figure 1-30: 9.3Cm Swivel Adapter Sleeve to Connect the Locking Electric Brush
20
Electrobrush Plug System (S 3Xx and S 4Xx Only)
21
4 Description of Function
21
Air Clean Plus Filter System
21
Super Air Clean Filter
21
Figure 1-31: 20Cm Swivel Adapter Sleeve to Connect Lockable Accessories
21
Active Air Clean Filter
22
S-Class Filter
22
Dustbag Change Indicator
22
S 3Xx
23
Figure 4-1: S 3Xx Dustbag Change Indicator
23
S 4Xx
24
Suction Power
24
Figure 4-2: S 4Xx Dustbag Change Indicator
24
Figure 4-3: Suction Power Curve
24
Power Regulation
25
Models with Manual Power Selection
25
Automatic Models
25
Booster Setting
26
Phase-Chopping Control - Principle of Operation
27
5 Service and Maintenance
27
Figure 4-4: Phase-Chopping Control
27
Dustbag Compartment Lid (and Hinges, if Applicable)
28
S 3Xx
28
S 4Xx
28
Figure 5-1: Dustbag Compartment Lid, S 4Xx
28
Accessory Compartment Lid
29
Reassembly (S 2Xx Only)
29
Dustbag Holder
29
Figure 5-2: Accessory Compartment Lid, Hinges and Springs (S 2Xx Shown)
29
Figure 5-3: Dustbag Holder, S 25X
29
Figure 5-4: Dustbag Holder, S 27X
30
Figure 5-5: Dustbag Holder, S 3Xx
30
S 3Xx
30
S 4Xx
30
Dust Channel
31
S 3Xx and S 4Xx
31
Dustbag Change Indicator
31
Figure 5-6: S 3Xx and S 4Xx Dust Channel
31
S 3Xx
32
S 4Xx
32
Cap Assembly
32
Figure 5-7: S 25X Cap Assembly
32
Figure 5-8: S 27X Rear Casing
33
Figure 5-9: Cap Assembly, S 4Xx
33
S 3Xx
33
S 4Xx
33
Rear Casing
34
S 3Xx
34
Figure 5-10: Rear Casing, S 25X
34
Figure 5-11: Rear Casing, S 27X
34
S 4Xx
35
Figure 5-12: Rear Casing, S 3Xx
35
Figure 5-13: Rear Casing, S 4Xx
35
Foot Switches
36
S 25X and S 27X
36
S 3Xx
36
S 4Xx
36
Figure 5-14: Foot Switches, S 25X and S 27X
36
Figure 5-15: Foot Switch, S 3Xx
36
Potentiometer/Suction Power Selector
37
S 2Xx
37
Figure 5-16: Foot Switch, S 4Xx
37
S 3Xx
38
Figure 5-17: Potentiometer Cover, S 2X4I and S 2X5I
38
Figure 5-18: Catches on Potentiometer Control, S 2X4I and S 2X5I
38
Figure 5-19: Potentiometer Control, S 2X4I and S 2X5I
38
Figure 5-20: Rotary Potentiometer, S 3Xx
39
Figure 5-21: Slide Potentiometer, S 3Xx
39
S 4Xx
40
Figure 5-22: +/- Buttons, S 3Xx
40
Figure 5-23: Electronic +/- Buttons, S 3Xx
40
Figure 5-24: S 4Xx Slide Potentiometer
41
Electronic (S 4Xx Only)
42
Figure 5-25: Foot-Operated Power Selector, S 4Xx
42
Fault/Overheat Indicator Lamp
43
S 2Xx
43
S 4Xx
43
Plug Housing
43
Figure 5-26: S 4Xx Electronic Removal
43
On/Off Switch
44
S 3Xx
44
Flush Socket Outlet
44
Figure 5-27: S 27X Plug Housing
44
Sensor (Automatic Models S 280I - S 282I)
45
Cord Reel
45
Figure 5-28: Sensor Removal for Models S 280I - S 282I
45
Figure 5-29: Cap Assembly with Lug, S 25X Models
46
Figure 5-30: Brake Lever Top Edge, S 25X Models
46
S 3Xx
46
S 4Xx
46
Power Cord
47
S 3Xx
47
Figure 5-31: S 27X Power Cord Removal
47
Figure 5-32: S 3Xx Power Cord Removal
47
Motor Assembly
48
Figure 5-33: S 25X Motor Assembly
48
Figure 5-34: S 27X Motor Assembly
49
Figure 5-35: S 4Xx Motor with Holding Bracket
50
S 3Xx
50
S 4Xx
50
Motor Electronic (Speed Control Board)
51
S 3Xx
51
S 4Xx
51
Motor Brushes
51
Figure 5-36: S 4Xx Motor with Central Bearing
51
Electric Brush Socket (S 254I and S 255I Only)
52
Suction Hose with Integrated Wiring (S 2Xx Only)
52
S 254I and S 255I
52
S 270I - S 276I, S 280I
52
Figure 5-37: S 254I and S 255I Suction Hose with Integrated Wiring
52
Turbo Brush (S 2Xx Only)
53
Figure 5-38: S 270I - S 276I, S 280I Suction Hose with Integrated Wiring
53
Figure 5-39: S 278I Suction Hose with Integrated Wiring
53
Buffer/Bumper Strip (S 3Xx and S 4Xx Only)
54
S 3Xx
54
Figure 5-40: S 2Xx Turbo Brush
54
S 4Xx
55
Grill for HEPA Filter (S 3Xx Only)
55
6 Fault Diagnosis
56
Improved Castor (S 2Xx Only)
56
Dirty Dustbag Compartment (S 27X and S 28X Only)
56
Dustbags, Old and New Versions
56
Figure 6-1: Modified Castor, S 2Xx
56
Modified Dustbag Holder
57
Figure 6-2: Dustbag with Raised Rim on Collar, S 27X and S 28X
57
Figure 6-3: Dustbag Without Raised Rim on Collar, S 27X and S 28X
57
Poor Suction Performance (S 27X and S 28X)
58
Figure 6-4: Modified Dustbag Holder, S 27X and S 28X
58
Figure 6-5: S 27X and S 28X Motor Seal and Holder
58
Poor Blower Performance (S 27X and S 28X)
59
Dustbag Change Indicator (S 3Xx)
59
Figure 6-6: Blower Plate for S 27X and S 28X
59
Suction Power (S 3Xx)
60
Motor Does Not Operate (S 345I and S 445I)
60
Figure 6-7: S 3Xx Dustbag Change Indicator
60
Other manuals for Miele S 250i
Operating Instructions
36 pages
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Miele S 250i Specifications
General
Cord Length
7.5 m
Weight
5.6 kg
Type
Canister
Dust capacity
4.5 liters
Filter system
AirClean filter
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