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Technical Information

T1500 Series Clothes Dryers

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.

The “Cooling down” LED Illuminates

Circuit Is In proper working order

The “Cooling down” and “Drying” LEDs
flash alternately

(Resistance of connection between
controls and sensors Is too high or
open circuited).

3. Disconnect the wires to the drum and lifter bar at the pickup connection plug.

4. Jump the wires leading to the electronic unit (short circuiting the moisture

sensing circuit).

5. Select “

Fluff

”

position i

n the service mode

, pres Start. W

ait approximately 30

seconds.

The “Cooling down” LED Illuminates

Check circuit outside of the Control
Electronic. (e.g.~ slip rings, wiring, lifter
bars, sensor contacts etc).

The “Cooling down” and “Drying” LEDs
flash alternately

Replace the Control Electronic.

Proceed to step 6.

Содержание Novotronic T 1520

Страница 1: ... 2003 Miele TECHNICAL INFORMATION T1500 Series Clothes Dryers ...

Страница 2: ......

Страница 3: ...6 T1565C T1570C 11 3 3 General Operation T1576 12 3 4 Program Option Buttons T1576 12 3 5 Condenser Drawer Condenser Models Only 13 3 6 Heat Exchanger Condenser Models Only 14 4 0 DESCRIPTION of FUNCTION 4 1 Vented Dryer Principle of Operation 17 4 2 Condenser Dryer Principle of Operation 18 4 3 Fan Motor Assembly 20 4 4 Residual Moisture Sensing 22 4 5 Temperature Monitoring 23 4 6 Heater Bank As...

Страница 4: ... Service Mode T1515 T1520 T1526 T1565C T1570C 41 6 2 Service Mode T1576 42 6 3 Fault Codes T1576 43 6 4 Programming Mode T1576 44 6 5 Residual Moisture Sensor Circuit Test T1515 T1520 T1526 T1565C T1570C 45 6 6 Residual Moisture Sensor Circuit Test T1576 47 6 7 Dryer Takes too Long to Dry Clothes 49 6 8 Residual Moisture Sensing Inoperative 49 6 9 Dryer Door Keeps Popping Open except T1576 59 6 10...

Страница 5: ...enser Dryer Airflow 18 4 3 Motor Assembly 20 4 4 Drum Drive Belt and Reduction Pulley 21 4 5 Heater Bank Assembly 24 4 6 Heater Circuit 24 4 7 Electronic Locations T1515 T1520 T1526 T1565C T1570C 25 4 8 Electronic Locations T1576 26 5 1 Lid Removal and Front Panel Access 27 5 2 Removing the left section of the fascia panel 28 5 3 Securing screw for Power Electronic 29 5 4 Removing the Power Electr...

Страница 6: ...0 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 ...

Страница 7: ...sign 1 1 Appliance Overview Vented Typical 5 Kilogram Vented Model Shown Figure 1 1 Appliance Overview T1500 series Dryer Vented 5 K Model Shown 1 Supply Cable Plug 2 Control Panel 3 Drum Door 4 Exhaust Connection right left rear 5k vented left rear 6k vented 5 Adjustable Legs ...

Страница 8: ...Control Panel 2 Condenser Drain Hose 3 Washer Drain Hose for clarification only not part of Dryer 4 Electrical Cord and Plug 5 Condensed Water Drawer 6 Drum Door 7 Adjustable Legs 8 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 ...

Страница 9: ...nical Information 3 T1500 Series Clothes Dryers 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 ...

Страница 10: ...Technical Information 4 T1500 Series Clothes Dryers T1565C T1570C T1576 Figure 1 4 Control Panels for model numbersT1565C T1570C and T1576 ...

Страница 11: ...ance Dimensions With Angled Control Panel With Flat Control Panel Figure 1 5 Dimensions 5 kilogram vented models With Angled Control Panel With Flat Control Panel Figure 1 6 Dimensions 5 kilogram condenser models 5Kilogram Vented Models 5Kilogram Condenser Models ...

Страница 12: ...Technical Information 6 T1500 Series Clothes Dryers 6Kilogram Vented Models Figure 1 7 Dimensions 6 kilogram Vented Models Note At the present time a 6 kilogram condenser model does NOT exist ...

Страница 13: ...y C5 Capacitor Condensate Fan Motor Condenser Models Only F1 Temperature Limiters H3 6 Lamp Drum Interior K1 Heater Relays M2 Condensate Fan Motor Condenser Models Only M13 Condensate Pump Condenser Models Only M5 Motor Drum Drive 1N1 Control Electronic 2N1 Power Electronic R1 Heater Bank R30 Temperature Sensor NTC S1 Selector Switch X3 1 Terminal Block Z1 Interference Capacitor Figure 1 8 Layout ...

Страница 14: ...r F1 Temperature Limiters H3 6 Lamp Drum Interior 2R30 Temperature Sensor Heaters K1 Heater Relays M5 Motor Drum Drive 1N1 Control Electronic 2N1 Power Electronic Piggybacked to 1N1 R1 Heater Bank R30 Temperature Sensor NTC S1 Selector Switch X3 1 Terminal Block Z1 Interference Capacitor Figure 1 9 Layout of Components T1576 ...

Страница 15: ...placed on top of a Miele Washer for a stacked installation An approved Miele stacking kit must be used 2 1 Electrical Requirements 120 240 208 Volt 60Hz 15 Amp breaker Dryer is equipped with a 4 wire power cord equipped with a NEMA 14 30 plug for connection to a NEMA 14 30 receptacle Note If you do not have a dedicated 15 Amp circuit for this appliance but have a NEMA 14 20 or NEMA 14 30 240V 30 A...

Страница 16: ...d at a later date 6 ft Drain Hose Hose Clamp Hose Elbow 2 3 Installation Procedure 1 Position Dryer at install location and level using the legs on the bottom of the appliance The metal frame of the appliance provides the ideal location to place a level Ensure appliance is as level 2 Connect Power and perform operational check Note If Dryer is to be installed in combination with a Stacking Kit and...

Страница 17: ...n PushButtons T1515 T1520 T1526 T1565C and T1570C Door Opens the Door or can be used to cancel a program does not stay pushed in ON OFF Turns the appliance On Off and can be used to cancel a program Buzzer Enables the buzzer when the anti crease stage of the program is reached Load size Full Half To dry a standard size load or more at peak efficiency select press this option before starting a prog...

Страница 18: ...ers are not powered during the initial start of a program The Heater are powered after the drum reverses direction 3 4 Program Option Buttons T1576 Low Energy with Cottons Program Normal heater operation with a lower temperature Turbo with Cottons Program Normal heater operation with a higher temperature Gentle Uses a lower temperature and extended program time for care of delicate fabrics Buzzer ...

Страница 19: ...ter should be emptied from the drawer after each program completes Should the container be full or become filled during operation the following occurs The Empty out container indicator illuminates The buzzer sounds The drying program stops and enters the cooling down cycle To empty the Condensed Water Drawer 1 Hold the cap open while emptying the Water Drawer 2 Drain all water 3 Install the Water ...

Страница 20: ...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 Figure 3 2 Positioning the Heater Exchanger Levers ...

Страница 21: ...eat 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 ...

Страница 22: ...Technical Information 16 T1500 Series Clothes Dryers ...

Страница 23: ... Dryer Principle of Operation 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 The heated air passes through the Drum Item 9 where moisture from the Drying Load 7 is absorbed The air is filtered as it passes through the Filter Item2 located in the Front Door Item 1 The flow continues through the Fan Motor Ite...

Страница 24: ...hrough the Heat Exchanger where the moisture content in the air condenses into water The Condenser System draws air from outside the appliance via the Condensate Fan Item 8 The outside air passes through the Heat Exchanger in a 900 direction from the drying air The temperature difference between the two allows moisture condensation to form on the Heat Exchanger As the moisture level increases wate...

Страница 25: ...nd 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 drain line With this configuration the condensed water is pumped directly into the drain therefore emptying the Condenser Drawer is not necessa...

Страница 26: ...tor is performed within the Power Electronic Assistance to the motor during start up is provided by the Motor Start Capacitor Item 3 The Fan Motor Item 4 provides drive to the Drum via a Drive Belt and Reduction Pulley Item 1 mounted on the Motor Bracket Item 2 1 Pulley Belts 2 Motor Bracket 3 Motor Start Capacitor 4 Fan Motor 120VAC 5 Fan Housing Cover 6 Fan Impeller 7 Fan Housing 8 Motor Assembl...

Страница 27: ...he 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 Figure 4 4 Drum Drive Belts and Reduction Pulley 1 Drum 2 Drum Drive Belt 3 Belt Motor to Pulley 4 Motor M5 ...

Страница 28: ...tion During drying the level of moisture within the laundry decreases And is reflected by the status of the Drying Stage Reached LED s When the moisture within the laundry reaches the selected program value the Dryer enters the cooling down stage followed by the Anti Crease mode Important The electronic limits all moisture sensing programs to a maximum duration of 240 minutes Should 240 minutes be...

Страница 29: ...ed by two NTC Negative Thermal Coefficient Temperature Sensors One Sensor is mounted in the Heater Bank Assembly the second Sensor is mounted in the Fan Housing Both sensors are monitored by the microprocessor and are used to calculate the drum temperature The temperature is regulated by the electronic via the two 2 Heater Relays When the Electronic energizes the Heater Relay s higher voltage cont...

Страница 30: ...ater 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 The Temperature Limiters are non resettable SOD Single Operation Device devices in accordance with product approvals Note The T1576 Dryer has an additional NTC sensor installed at the top of the Heater Bank ...

Страница 31: ...onitoring 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 9 Electronic Locations by Model Number T1515 T1520 T1526 T1565C T1570C Figure 4 7 Electronic Locations T1515 T...

Страница 32: ...Technical Information 26 T1500 Series Clothes Dryers 1 Control Unit Electronic 2 Power Module Electronic T1576 Figure 4 8 Electronic Locations on T1576 ...

Страница 33: ...dance 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 Lift the lid at the front slide it towards the rear and lift to remove ...

Страница 34: ...e 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 Remove the two 2 screws Figure 5 1 Item 4 4 Press the spring clip Figure 5 1 Item 2 down with the lid opener and open the front panel Figure 5 2 Removing the left...

Страница 35: ...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 ...

Страница 36: ...s 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 Press the retainer Item 2 and slide the Power Electronic to remove it from the holder Item 5 Service Tip Screw Figure 5 4 Item 8 is shorter and should only be used to secure the power module Figure 5 4 Removing the P...

Страница 37: ... 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 Remove the Program Selector Knob 2 Open the front panel 5 2 or 5 3 3 Remove the Power Electronic 5 4 or 5 5 4 Remove the three 3 screws that hold the Electronic 5 Disconnect the electrical conn...

Страница 38: ... 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 Remove the securing screw lift bracket from frame 4 Position bracket to allow access to the Relay s 5 Slide each Relay from the bracket to release Bracket ...

Страница 39: ...even when completely loosened Figure 5 7 Drum positioned with the two largest holes horizontal this permits access to the Drum Bearing Bolts 4 Remove the six 6 Allen Head Bolts from the perimeter of the rear panel 5 From inside the drum push the drum upward and pull the rear panel outward to remove Service Tip If the panel does not release when the drum is lifted in step 5 ensure the two bolts in ...

Страница 40: ...ee 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 ...

Страница 41: ...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 Lift the Fan Motor tilting it slightly upward toward the back to release it from the belt 6 Position the Fan Motor toward the front of the appliance disconnect the electrical connection Warning Before handling the Fan Motor Assembly ensure the capacitor is fu...

Страница 42: ...witch 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 ...

Страница 43: ...cure 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 Lift the Condenser Fan to remove it from the Condenser Assembly ...

Страница 44: ...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 ...

Страница 45: ...ppliance ensure the Drum Belt is positioned and aligned correctly 8 Access the rear of Fan Motor through the space below the Drum Lift upward on the Fan Motor Tensioning Pulley place the drive belt onto the pulley The Tensioner Pulley should be holding the Dum Belt in position 9 Ensure Drum Belt is aligned between the motor and the drum 10 Hand spin the Drum slowly this allows any minor alignment ...

Страница 46: ...Technical Information 40 T1500 Series Clothes Dryers ...

Страница 47: ...ctor Knob to the desired position then press START To exit the Service Mode Switch Off the appliance Selector Switch Position Function Finish Start Buzzer pushButton test Cotton Extra Dry Heater on Cottons Normal Drum drives left vented models only Cottons Normal Buzzer Activated Cottons Hand Iron Drum drives right vented models only Cottons Hand Iron Condenser Fan Condenser models only Cotton App...

Страница 48: ...ion To exit the Service Mode Switch Off the appliance Selector switch position Press Start to activate Extra Dry Main motor operates 10 seconds in each direction Normal Vacant Normal One heater and Main motor operates Hand iron Main motor operates Hand iron Both heater and main motor operates Rotary iron Residual moisture sensor Test Cooling down lights up OK Cooling down flashes fault Fluff Resid...

Страница 49: ...fer to Table 6 3 to determine the stored Fault 6 Switch the appliance Off 7 Perform the necessary service steps to rectify the cause of the fault proceed to the Delete a Stored Fault Code below Delete a Stored Fault Code 1 Access the Service Mode 6 2 2 Turn the Selector Knob to Woolens position 3 Press the Start Button 4 Press and hold the Gentle Button 5 Press the Start button 6 Release the Gentl...

Страница 50: ...desired position press START to activate the function The programmed value is indicated by the status of the Rotary Iron LED Press Start to toggle between the options To store the selected setting switch Off the appliance while the Program Selector Knob is in the desired position and the Rotary Appliance Iron is displaying the desired setting Selector Switch Position Function Option s Status of Ro...

Страница 51: ...ng down LED Illuminates Circuit Is In proper working order The Cooling down and Drying LEDs flash alternately Resistance of connection between controls and sensors Is too high or open circuited 3 Disconnect the wires to the drum and lifter bar at the pickup connection plug 4 Jump the wires leading to the electronic unit short circuiting the moisture sensing circuit 5 Select 15 minutes cool air In ...

Страница 52: ... 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 Select 20 Minutes Warm Air in the service mode and wait for approximately 60 seconds The Cooling down LED Illuminates Check circuit outside of the Control Electronic e g slip rings wiring lifter bars sensor contac...

Страница 53: ...Illuminates Circuit Is In proper working order The Cooling down and Drying LEDs flash alternately Resistance of connection between controls and sensors Is too high or open circuited 3 Disconnect the wires to the drum and lifter bar at the pickup connection plug 4 Jump the wires leading to the electronic unit short circuiting the moisture sensing circuit 5 Select Fluff position in the service mode ...

Страница 54: ... 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 Select Timed Cycles Fluff in the service mode and wait for approximately 30 seconds The Cooling down LED Illuminates Check circuit outside of the Control Electronic e g slip rings wiring lifter bars sensor contact...

Страница 55: ...oth elements are operating Clothes are not spun out enough from washer Increase spin speed on the washer 6 8 Residual Moisture Sensing Inoperative The circuit is not operating normally Perform the Residual Moisture Sensor Test 6 4 or 6 5 Isolate and Repair Fault 6 9 Dryer Door Keeps Popping Open all models except T1576 The temperature monitor high temp cut out in the heater bank has switched state...

Страница 56: ... and Condenser Water Pump 6 11 Noise Light Repetitive Clicking about every second while drum is turning Inspect the Residual Moisture Sensor Pickup Drum Path Check the for worn pickup brushes Clean the pickup path around the drum Ensure the sensor is mounted correctly Check that the sensor assembly has adequate spring tension 6 12 T1576 Dryer shuts down after less than 1 minute of operation If the...

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