TECHNICAL INFORMATION T1500 Series Clothes Dryers © 2003 Miele
T1500 Series Clothes Dryers - Table of Contents 1.0 CONSTRUCTION & DESIGN 1.1 Appliance Overview - Vented 1 1.2 Appliance Overview – Condenser Models 2 1.3 Controls Overview 3 1.4 Appliance Dimensions 5 1.5 Layout of Components – T1515, T1520, T1526, T1565C & T1570C 7 1.6 Layout of Components – T1576 8 2.0 INSTALLATION 2.1 Electrical Requirements 9 2.2 Plumbing Information – Condenser Models 10 2.3 Installation Procedures 10 3.0 COMMISSION and OPERATION 3.
5.6 Control Electronic – Removal (T1515, T1520, T1526, T1656C & T1570C) 31 5.7 Control Electronic Removal (T1576) 31 5.8 Heater Relay – Access 32 5.9 Rear Drum Panel – Removal 33 5.10 Heater Bank – Access 34 5.11 Fan Motor – Removal 35 5.12 Condenser Assembly – Removal 36 5.13 Condenser Fan – Removal 37 5.14 Residual Moisture Sensor – Removal 38 5.15 Drum Drive Belt – Replacement 39 6.0 FAULT DIAGNOSIS 6.1 Service Mode (T1515, T1520, T1526, T1565C & T1570C) 41 6.
T1500 Series Clothes Dryers – List of Figures 1-1 Overview T1500 Series Dryer 1 1-2 Typical Installation 2 1-3 Control Panels (T1515, T15120 & T1526) 3 1-4 Control Panels (T1565C, T1570C & T1576) 4 1-5 Appliance Dimensions (5 Kilogram - Vented 5 1-6 Appliance Dimensions (5 Kilogram - Condenser) 5 1-7 Appliance Dimensions (6 Kilogram) 6 1-8 Layout of Components (T1515, T1520, T1526, T1565C & T1570C) 7 1-9 Layout of Components (T1576) 8 3-1 Opening the Cover to the Heat Exchanger 14 3-2 Po
T1500 Series Clothes Dryers – List of Tables 6-1 Service Mode Functions (T1515, T1520, T1526, T1565C & T1570C) 41 6-2 Service Mode Functions (T1576) 42 6-3 Fault Code Storage (T1576) 43 6-4 Programming Mode Values (T1576) 44
T1500 Series Clothes Dryers Technical Information 1.0 Construction and Design 1.
T1500 Series Clothes Dryers Technical Information 1.2 Appliance Overview – Condenser Models (Shown Installed Along Side a Washer) 1. 2. 3. 4. 5. 6. 7. 8. Control Panel Condenser Drain Hose Washer Drain Hose (for clarification only – not part of Dryer) Electrical Cord and Plug Condensed Water Drawer Drum Door Adjustable Legs Stand Pipe Figure 1-2: Typical installation with Miele Clothes Washer. Note: Condenser hose is placed into the same stand pipe the washer drain hose uses.
T1500 Series Clothes Dryers Technical Information 1.3 Controls Overview T1515 5 Kilogram Vented T1520 5 Kilogram Vented T1526 6 Kilogram Vented Figure 1-3: Control Panels for model numbersT1515, T1520 and T1526.
T1500 Series Clothes Dryers Technical Information T1565C T1570C T1576 Figure 1-4: Control Panels for model numbersT1565C, T1570C and T1576.
T1500 Series Clothes Dryers Technical Information 1.
T1500 Series Clothes Dryers Technical Information 6Kilogram – Vented Models Figure 1-7: Dimensions 6 kilogram – Vented Models Note At the present time, a 6 kilogram condenser model does NOT exist.
T1500 Series Clothes Dryers Technical Information 1.
T1500 Series Clothes Dryers Technical Information 1.
T1500 Series Clothes Dryers Technical Information 2.0 Installation Do not drink the condensed water. Keep the area around the air intake (Toekick) and surrounding areas free from lint, dust and dirt. This area should not be blocked (i.e. Toekick) this will prevent sufficient intake of air and effect appliance operation. Do not reach into the Dryer if the Drum is moving. The appliance should be level to ensure proper operation. A Dryer can be placed on top of a Miele Washer; for a stacked installation.
T1500 Series Clothes Dryers Technical Information 2.2 Plumbing Information - Condenser Models On Condenser Model Dryers the option exist to have the condensed water exit the appliance via a Drain Line. A suitable drain system (i.e. standpipe) is required for this option. Maximum Drain Hose length: 10 ft Maximum Drain height: 4 ft. All Condenser Model Dryers come supplied with the following accessories to add the Drain Line option.
T1500 Series Clothes Dryers Technical Information 3.0 Commission and Operation 3.1 General Operation – T1515, T1520, T1526, T1565C and T1570C 1. 2. 3. 4. 5. 6. 3.2 Turn on the Dryer. Press the Door Button to open the Door. Place laundry into the appliance Select a program Select option(s) – as desired. Press the Start Button. Additional Function PushButtons – T1515, T1520, T1526, T1565C and T1570C Door Opens the Door or can be used to cancel a program (does not stay pushed in).
T1500 Series Clothes Dryers Technical Information 3.3 General Operation – T1576 1. 2. 3. 4. 5. 6. Turn on the Dryer. Press the Door Button to open the Door. Place laundry into the appliance Select a program Select option(s) – as desired. Press the Start Button. Service Tip The Heaters are not powered during the initial start of a program. The Heater are powered, after the drum reverses direction. 3.
T1500 Series Clothes Dryers Technical Information 3.5 Condenser Drawer (Condenser Models Only) General Information Depending on the installation, condensed water is either pumped to an on-site drain, or collected in the Condensed Water Drawer. The Condensed Water Drawer holds approximately one (1) gallon of water. The water should be emptied from the drawer after each program completes.
T1500 Series Clothes Dryers Technical Information 3.6 Heat Exchanger (Condenser Models Only) Note The heat exchanger should be cleaned at least twice a year. 1. Open the Door. Locate the Heat Exchanger Cover near the bottom / left of the appliance. 2. Turn the lever so that it is in a vertical position (as shown in figure 3-1). Figure 3-1: Opening the cover to the Heat Exchanger 3. Remove the cover. 4. Turn both levers on the heat exchanger so that they are vertical (as shown in figure 3-2).
T1500 Series Clothes Dryers Technical Information 5. Pull out the heat exchanger. Figure 3-3: Removing the Heat Exchanger 6. Clean the Heat Exchanger, by running water through the louvers to clean the assembly of lint and dust. Figure 3-4: Cleaning the Heat Exchanger Stand the Heat Exchanger lengthwise on a towel until it dries. Replace the Heat Exchanger by reversing the steps above. Ensure the Heat Exchanger is fully seated into position and the cover is closed and locked.
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T1500 Series Clothes Dryers Technical Information 4.0 Description of Function 4.1 Vented Dryer – Principle of Operation 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Door Filter Output from Filter Fan Motor NTC Sensor (13 K.Ohms @ 750F) Drum Warmed Drying Air Drying Load Heater Bank Vent Output Figure 4-1: Vented Dryer Airflow Refer to figure 4-1. The Fan Motor (Item 4) is responsible for drawing heated air from the Heater Bank (Item 6).
T1500 Series Clothes Dryers Technical Information 4.2 Condenser Dryer – Principle of Operation 1. Condensed Water Drawer 2. Door 3. Filter 4. Filter Screens 5. Fan Motor 6. Condensed Water 7. Condenser Unit 8. Condensate Fan 9. Cool air Intake 10. Condensate Pump 11. Heater Bank 12. Drying Load 13. Heated Dry Air 14. Drum Figure 4-2: Condenser Dryer Airflow Refer to figure 4-2. The Fan Motor (Item 5) is responsible for drawing heated air from the Heater Bank (Item 11).
T1500 Series Clothes Dryers Technical Information When the condensed water accumulates to a specific value the Condensate Float Switch actuates. The Electronic energizes the Condensate Pump (Item 10) and the water is pumped to the Condenser Drawer (Item 1). Should the Condenser Drawer (Item 1) become full prior to the end of a cycle the “Empty Out Container” LED is illuminated and the program stops. Note Condenser model Dryers can be configured with an optional drainline.
T1500 Series Clothes Dryers Technical Information 4.3 Fan Motor (M5) Assembly 1 2 3 4 5 6 7 8 Pulley / Belts Motor Bracket Motor Start Capacitor Fan Motor (120VAC) Fan Housing Cover Fan Impeller Fan Housing Motor Assembly Slide Track Figure 4-3: Motor Assembly Refer to Figure 4-3. The Fan Motor (Item 4) is a bi-directional 120VAC motor. Directional switching for the motor is performed within the Power Electronic.
T1500 Series Clothes Dryers Technical Information The Fan Motor also provides direct drive to the Fan Impeller (Item 6) within the Fan Housing (Item 7). As the Fan Impeller rotates, airflow is created and draws heated air from the Heater Bank, across the drum and through the Filter(s). The air exiting the Fan Housing (Item 7), is routed to the vent system; or through the Heat Exchanger on Condenser Model Dryers.
T1500 Series Clothes Dryers Technical Information 4.4 Residual Moisture Sensing There are two variables that determine the Dryer run time; initial moisture content in the laundry and the program selected. At the beginning of the cycle, the moisture content within the laundry is measured by the Residual Moisture Sensor. This value is used by the electronic to calculate the approximate program duration. During drying, the level of moisture within the laundry decreases.
T1500 Series Clothes Dryers Technical Information 4.5 Temperature Monitoring Temperature Monitoring – T1515, T1520, T1526, T1565C & T1570C Drum temperature is monitored by the NTC (Negative Thermal Coefficient) Temperature Sensor; mounted in the front of the Fan Housing. As the temperature within the drum area increases, the resistance of the sensor decreases. The sensor resistance is monitored by the microprocessor and is used to calculate the drum temperature.
T1500 Series Clothes Dryers Technical Information 4.6 Heater Bank Assembly 1 – Temperature Limiters (2) 2 - Temperature Sensor (NTC) (T1576 Only) (100k.Ohm@ 750F) Figure 4-5: Heater Bank Assembly (T1576 shown; all other T1500 series dryers do not have a Temperature Sensor in the Heater Bank) The Heater Bank Assembly is comprised of two (2) electrically isolated Heater Elements. Temperature Limiters are secured to the top of the assembly and are electrically in series to the Heater Elements.
T1500 Series Clothes Dryers Technical Information 4.7 Control (Upper) Electronic The Electronic Control performs the following functions: Program sequence monitoring Residual Moisture Sensing System monitoring Air temperature monitoring and control Power Electronic switching (relay) control 4.8 Power (Lower) Electronic The Power Electronic supplies power for: The relays on the power module Residual Moisture Sensor Circuit The CPU / Microprocessor 4.
T1500 Series Clothes Dryers Technical Information T1576 1- Control Unit Electronic 2- Power Module Electronic Figure 4-8: Electronic Locations on T1576 26
T1500 Series Clothes Dryers Technical Information 5.0 Service and Maintenance Note Service and repair work should only be performed by qualified personnel; in accordance with applicable codes. Warning The appliance should be unplugged from the power source before any service and /or maintenance procedures are performed. 5.1 Lid - Removal Figure 5-1: Lid Removal and Front Panel Access Refer to figure 5-1. 1. Remove the screws from the side edges of the lid (Item 1). 2.
T1500 Series Clothes Dryers Technical Information 5.2 Front Panel – Opening, Condenser Models Refer to figure 5-1. 1. Remove the four (4 )screws (Item 3). 2. Remove the Condenser Drawer and unscrew the three (3) screws (Item 4). 3. Press the spring clip (Item 2) down with the lid opener and open the front panel. 5.3 Front Panel – Opening, Vented Models 1. Remove the left section of the fascia panel using a lid opener (Figure 5-2 – Item 1). 2. Remove the four (4 ) screws (Figure 5-1 – Item3). 3.
T1500 Series Clothes Dryers Technical Information 5.4 Power Electronic – Removal T1515, T1520, T1526, T1565C and T1570C 1. Open the front Door and remove the screw near the 4 o’clock position (Figure 5-3). 2. Open the Front Panel (5.2 or 5.3) 3. Slide the Power Module Electronic upward to release from the frame. 4. Disconnect the electrical connections and remove the electronic. Figure 5-3: Securing screw for Power Electronic on the T1515, T1520, T1526, T1565C and T1570C model Dryers.
T1500 Series Clothes Dryers Technical Information 5.5 Power Electronic – Removal (T1576) Note The Power Electronic is fitted to the rear of the Control Electronic. Should replacement of either electronic be necessary, each Electronic is replaced individually. Refer to figure 5-4. 1. Open the front panel (5.2 or 5.3). 2. Disconnect the electrical connections to the Power Electronic (Item 1). 3. Remove the fixing screw (Item 8). 4.
T1500 Series Clothes Dryers Technical Information 5.6 Control Electronic – Removal T1515, T1520, T1526, T1565C & T1570C Figure 5-5: Control Electronic removal on T1515, T1520, T1526, T1565C and T1570C Dryers. Refer to figure 5-5. 1. Remove the Program Selector Knob. 2. Open the front panel (5.2 or 5.3) 3. Remove the three (3) screws (Item 2). 4. Disconnect the electrical connections 5. Remove the Control Electronic. 5.7 Control Electronic – Removal T1576 1. 2. 3. 4. 5.
T1500 Series Clothes Dryers Technical Information 5.8 Heater Relays - Access Bracket Bracket Screw Figure 5-6: The Heater Relay Bracket is attached to the right side vertical section of the frame, and can be easily be accessed with the Service Panel Opened. Warning Ensure the appliance is disconnected from the main power, before attempting to remove the bracket. 1. Open the Front Panel (5.2 or 5.3). 2. Locate the Heater Relay Bracket on the right side vertical section of the frame. 3.
T1500 Series Clothes Dryers Technical Information 5.9 Rear Drum Panel - Removal 1. Open the front Door of the Dryer. 2. Turn the drum by hand so that the two larger holes are horizontally across from each other; as shown in Figure 5-7. 3. Place a 5mm. Allen Wrench through each hole and completely loosen both bolts by turning them counterclockwise, until you feel them release from the threads. Service Tip The bolts will not fall out even when completely loosened.
T1500 Series Clothes Dryers Technical Information 5.10 Heater Bank - Access 1. Remove the Rear Drum Panel (5.9) 2. Remove the three (3) bolts from the Heater Bank Cover (Figure 5-8). 3. Lift the Heater Bank Cover to remove. Figure 5-8: Heater Bank Cover retaining bolts. Refer to figure 5-9. 4. Unscrew the heater bank retainers (Items 1 and 2). 5. Disconnect the electrical connections (Item 3). 6. Pull the Heater Bank upwards out of its duct. Figure 5-9: Heater Bank removal.
T1500 Series Clothes Dryers Technical Information 5.11 Fan Motor – Removal 1. Open the Front Service Panel (5.2 or 5.3). 2. Remove the Vent-Ring Assembly (Figure 5-10) and the Air Duct (on vented models) or Coupler (on Condenser) models. Figure 5-10: Vent Ring Assembly 3. Remove the two (2) Fan Motor Bolts (Figure 5-11). Figure 5-11: Fan Motor Bolts. 4. Slide the Fan Motor toward the front of the appliance, out if the locking track. 5.
T1500 Series Clothes Dryers Technical Information 5.12 Condenser Assembly – Removal Service Tip To access to The Condenser Pump and/or Float Switch; the Condenser Assembly must be removed from the appliance. 1. Remove the Coupler between the Fan Motor Housing and the Condenser Assembly. 2. Remove the Fan Motor (5.11) 3. Remove the Heat Exchanger form the Condenser (3.6). 4. Disconnect the electrical connections. 5. Slide the Condenser Assembly toward the front of the appliance and lift to remove.
T1500 Series Clothes Dryers Technical Information 5.13 Condenser Fan – Removal 1. Lay the appliance on it’s back 2. Remove the four (4) screws that secure the Bottom Cover (Figure 5-12) and lift the cover to remove it from the appliance. Figure 5-12: Bottom Cover Screws. Figure 5-13: Condenser Fan Screws. 3. Remove the four (4) screws that secure the Condenser Fan to the Condenser Assembly (Figure 5-13). 4. Disconnect the electrical connection. 5.
T1500 Series Clothes Dryers Technical Information 5.14 Residual Moisture Sensor - Removal 1. Open the Front Service Panel (5.2 or 5.3). 2. Locate the Residual Moisture Sensor (Figure 14) 3. Remove the single retaining screw. Figure 5-14: The Residual Moisture Sensor is attached to the frame near the 2 o’clock position with a single retaining screw. 4. Lift the Sensor Assembly (with the bracket) from the appliance. 5. Note / mark wire positions for re-assembly. 6. Disconnect the electrical connections.
T1500 Series Clothes Dryers Technical Information 5.15 Drum Drive Belt 1. 2. 3. 4. 5. Remove the lid (5.1) Open the Front Panel (5.2 or 5.3). Remove the Rear Panel of the drum (5.9). Remove the Heater Bank Cover (5.10 - step 2) Lift upward on the Drum, so a small gap exist between the edge of the Drum and the Heater Duct (Figure 15). Figure 5-15: Positioning the drum to form a gap. This is necessary to routing the Drum Drive Belt around the drum. 6. Route the belt through the gap and onto the Drum. 7.
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T1500 Series Clothes Dryers Technical Information 6 Fault Diagnosis 6.1 Service Mode – T1515, T1520, T1526, T1565C & T1570C Access 1. Switch Off the appliance. 2. Release all Push-Buttons. 3. Turn the Program Selector Switch to the Finish/Start (12 o’clock) position. 4. Switch the appliance On. 5. Press and release the Low Temperature Button (or Load Size Button – depending on the model number) 3 times in quick succession within 10 seconds.
T1500 Series Clothes Dryers Technical Information 6.2 Service Mode – T1576 Access 1. Switch Off the appliance. 2. Turn the Program Selector Switch to 12 o’clock. 3. Press and hold the Gentle and Start Buttons. 4. Switch the appliance On. 5. Release the Buttons Acknowledgement Indicator The Drying LED flashes to show the Service Mode is activate. Navigation Refer to the Table 6-2. Turn the Program Selector Knob to the desired position; press START to activate the function.
T1500 Series Clothes Dryers Technical Information 6.3 Fault Codes – T1576 Initial Requirements 1. Switch the appliance On. 2. Turn the Selector Knob to the Cotton Extra Dry position. 3. Press the Start Button to begin the program. 4. Note the status of the Anti-Crease LED. No Fault Stored The Anti-Crease LED is lit STEADY The Anti-Crease LED is FLASHING Fault Stored – Proceed to Access steps below Access (Retrieval) 1. Access the Service Mode (6.2) 2. Turn the Selector Knob to Woolens position. 3.
T1500 Series Clothes Dryers Technical Information 6.4 Programming Mode – T1576 Only Access 1. Switch Off the appliance. 2. Turn the Program Selector Switch to 12 o’clock. 3. Press and hold the Gentle and Buzzer Buttons. 4. Switch the appliance On. 5. Release the Buttons Acknowledgement Indicator The Drying & Cooling Down LED’s flash to show the Service Mode is activate. Navigation Refer to the Table 6-4. Turn the Program Selector Knob to the desired position; press START to activate the function.
T1500 Series Clothes Dryers Technical Information 6.5 Residual Moisture Sensor Circuit Test T1515, T1520, T1526, T1565C and T1570C Purpose This serves as a test of the complete moisture sensing circuit between the control module and the moisture sensor. Procedure 1. Electrically connect one lifter bar and the drum body using clip leads or a wire to simulate wet laundry and high conductivity. 2. Select “15 Minutes Cool Air” In the service mode and wait for approximately 60 seconds.
T1500 Series Clothes Dryers Technical Information 6. Remove the wire jumper from inside the drum. 7. Select “20 Minutes Warm Air” in the service mode and wait for approximately 60 seconds. The “Cooling down” LED Illuminates Circuit is In proper working order The “Cooling down” and “Drying” LEDs flash alternately Circuit defective (Lifter bars drum partially short-circuited. Resistance is < 50 M.Ohms 8. Disconnect the wires to the drum and lifter bars at the pickup connection plug. 9.
T1500 Series Clothes Dryers Technical Information 6.6 Residual Moisture Sensor Circuit Test T1576 Purpose This serves as a test of the complete moisture sensing circuit between the control module and the moisture sensor. Procedure 1. Electrically connect one lifter bar and the drum body using clip leads or a wire to simulate wet laundry and high conductivity. 2. Select “Rotary Iron” In the service mode. Press Start and wait for approximately 30 seconds.
T1500 Series Clothes Dryers Technical Information 6. Remove the wire jumper from inside the drum. 7. Select “Timed Cycles Fluff” in the service mode and wait for approximately 60 seconds. The “Cooling down” LED Illuminates Circuit is In proper working order The “Cooling down” and “Drying” LEDs flash alternately Circuit defective (Lifter bars drum partially short-circuited. Resistance is < 50 M.Ohms 8. Disconnect the wires to the drum and lifter bars at the pickup connection plug. 9.
T1500 Series Clothes Dryers Technical Information 6.
T1500 Series Clothes Dryers Technical Information 6.10 Water Leaks - Condenser Dryer The Condenser Water is leaking from the appliance - Ensure drawer is being emptied when needed - If appliance is configured with a Drain Hose connection…Check: the hose is free from sharp bend, kinks, clogs or other abnormalities and the stopper is fitted at the water port above the condenser drawer.
