BSH Thermador T42BD810NS User manual

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
1
SERVICE MANUAL
Thermador Built in Refrigerator
This manual contains information that is necessary to repair the
following Thermador Built-In refrigerators:
T42BD810NS T42BD820NS T42BR810NS T42BR820NS
T48BD810NS T48BD820NS T48BR810NS T48BR820NS
Due to the complexity and the risk of high-voltage electrical
shock, customers should not service their appliances.
The information provided in this document is intended for trained,
qualified personnel only. The proper function and the safety of the
appliance can be affected by an improper repair, and even
serious threats to life or physical condition may arise. BSH Home
Appliances Corporation is not liable for damages caused by
improper repairs performed by unauthorized parties. Local codes
and standards apply and must be observed. Contact Technical
Support for further assistance.

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
2
Table of Contents
SAFETY CONSIDERATIONS.................................5
WARNING- PRE- INSTALLATION
CONSIDERATIONS................................................6
MODEL IDENTIFICATION......................................7
INSTALLATION SPECIFICATIONS.......................8
Tools and Needed Supplies............................................................ 9
Tools Needed ................................................................................... 9
Parts Needed.................................................................................... 9
Location Requirements................................................................. 10
Opening Dimensions..................................................................... 10
Opening Dimensions - Cont’d....................................................... 11
Electrical Requirements................................................................ 12
Water Pressure .............................................................................. 12
Reverse Osmosis Water Filter System ........................................ 12
Water Supply Requirements......................................................... 12
Product Dimensions...................................................................... 13
Tipping Radius............................................................................... 13
Side Tipping Radius ...................................................................... 13
Product Dimensions - Cont’d........................................................ 14
Door Swing Dimensions................................................................ 14
Door Swing Dimensions –Cont’d ................................................ 15
Stainless Steel Side Panels........................................................... 15
Refrigerator and Side Trim Dimensions....................................... 15
Inset Installation Instructions ....................................................... 16
Unpack the Refrigerator ................................................................ 16
Move the Refrigerator into the House .......................................... 17
Reduce the Tipping Radius (If necessary)................................... 18
Install Anti-Tip Boards................................................................... 18
Install Anti-Tip Boards - Cont’d .................................................... 19
Style # 1 –Shut-Off Valve Connection ......................................... 19
Connect the Water Supply ............................................................ 19
Style # 2 –Copper Line Connection............................................. 20
Connect to the Refrigerator........................................................... 21
Move the Refrigerator to its Final Location ................................. 22
Level and Align the Refrigerator................................................... 22
After Moving the Refrigerator into its Final Location ................. 22
Door Height Adjustment................................................................ 23
Door Swing Adjustment - Cont’d .................................................. 24
Install Side Panel............................................................................ 25
FAULT DIAGNOSTICS.........................................26
Service Diagnostics Routine......................................................... 26
Troubleshooting............................................................................. 27
Troubleshooting –Con’t................................................................ 28
Troubleshooting –Con’t................................................................ 29
Compressor Inverter Testing........................................................ 30

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
3
Sealed System Procedure............................................................. 31
Before entering the Sealed System.............................................. 31
Conditions That Mimic a Sealed System Failure......................... 32
Icemaker Diagnostics.................................................................... 33
Icemaker Module Test Instructions.............................................. 34
Module Ohmmeter Checks............................................................ 35
Service and Disassembly Procedures ......................................... 36
Ingredient Care Center .................................................................. 37
COMPONENT ACCESS.......................................38
Compressor Component Compartment....................................... 38
Condenser Fan Motor & Door Switch Removal........................... 39
Door Switch Removal.................................................................... 40
Freezer Door Removal................................................................... 41
Freezer Door Removal - Cont’d .................................................... 42
Cavity Light Replacement............................................................. 43
Icemaker removal........................................................................... 44
Icemaker Removal - Cont’d ........................................................... 45
Icemaker Removal ......................................................................... 46
Ingredient Air Door Removal ........................................................ 47
Evaporator Cover Removal........................................................... 48
Defrost Control Component Access ............................................ 49
Evaporator Fan Removal............................................................... 50
Evaporator Fan Removal - Cont’d ................................................ 51
Defrost Heater Removal ................................................................ 52
Defrost Heater Removal ................................................................ 53
Defrost Heater Removal ................................................................ 54
Chilled Water Tank Removal......................................................... 55
Ice Dispenser Bucket Removal..................................................... 56
Auger Motor Removal.................................................................... 57
Auger Motor Removal.................................................................... 58
Ice Dispenser Bucket Disassembly.............................................. 61
Removing Front Panel & Dispenser Pad Access........................ 62
Removing Front Panel & Dispenser Pad Access - Cont’d.......... 63
Removing Front Panel & Dispenser Pad Access - Cont’d.......... 64
Removing Front Panel & Dispenser Pad Access - Cont’d.......... 65
Dispenser Display Removal.......................................................... 66
Ice Flapper Door Removal............................................................. 67
Water Inlet Removal....................................................................... 68
Water Filter Replacement.............................................................. 69
Water Filter Assembly Removal.................................................... 70
Water Fill Valve Removal............................................................... 71
Upper Cavity Light Bulb Replacement......................................... 72
Control Board Removal................................................................. 73
Control Board Removal –Cont’d.................................................. 74
Door Gasket Removal.................................................................... 75
TECHNICAL SPECIFICATIONS & WIRING
DIAGRAMS...........................................................76
Technical Information 42” & 48” Models ..................................... 76

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
4
Technical Information 42” & 48” Models – Cont’d ...................... 77
Technical Information 42” & 48” Models – Cont’d ...................... 78
Dispenser........................................................................................ 79
Icemaker –Dispenser Model......................................................... 80
Icemaker –Non Dispenser Model................................................. 81
Air Baffle......................................................................................... 82
Pan Air Baffle ................................................................................. 83
RC Lights........................................................................................ 84
FC Lights ........................................................................................ 85
FC Thermistor ................................................................................ 86
RC Thermistor................................................................................ 87

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
5
SAFETY CONSIDERATIONS
ELECTRICAL SHOCK HAZARD
Please observe proper handling regulations.
WARNING
Observe proper handling instructions.
SHARP EDGES
Wear protective gloves.
ELECTROSTATIC SENSATIVE DEVICES
Observe proper handling instructions.
DANGER to life from electrical shock
1) If the appliance is faulty, the housing or frame may be
electrically “LIVE”.
2) Electric shock may occur if live components are touched
inside the appliance.
3) Repairs must be carried out by a qualified electrician only!
User may be put at risk and injured by improper repairs.
4) Before commencing repairs, always disconnect the
appliance from the power supply.
5) If tests have to be performed while the appliance is “LIVE”
Always use a residual-current-operated circuit-breaker. It is
crucial for personal safety and appliance function.
6) The protective conductor resistance values must never
exceed the values specified in the standard.
7) When repairs are complete, perform a test in accordance
with VDE 0701 (via the connector, the safety test must be
conducted as described in the circuit diagrams), or
corresponding national regulations.
8) Check the protective conductor resistance, the insulation
resistance values must never exceed the values specified
in the standard.
9) Also check for leaks.

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
6
WARNING- PRE- INSTALLATION CONSIDERATIONS
WARNING –Electrical Hazards
WARNING - Replacement Parts
Care must be taken when securing the
appliance to avoid tipping hazard.
Keep door(s) closed until appliance is
completely installed and secured as
per installation instructions.
Due to the excessive weight and size of the
appliance and to reduce risk of personal
injury A MINUMUM OF TWO PEOPLE ARE
REQUIRED FOR A SAFE AND PROPER
INSTALLATION.
CAUTION: Read all instructions in the
“Installation Instructions” provided with the
unit before you begin installation.
Use only authorized replacement parts fir this
appliance. Use of substitutions may defeat
compliance with safety standards set for
home appliances, may void the warranty,
and may create safety hazards resulting in
bodily injury, death, or damage.
Before servicing the appliance, remove electrical
power by disconnecting the power cord from
the wall receptacle, by shutting off the circuit
breaker, or by disconnecting the proper fuse.
When repairs are complete, perform a function
test in accordance with the appropriate regulations.
Do not under any circumstances cut or remove the
separate ground wire or the third (ground) prong
from the power cord.
Improper grounding or reverse polarity may cause
malfunction (such as continuous sparking of the igniters),
which can damage the appliance and create an electrical
shock hazard. Make sure the circuit is properly grounded
and polarized in accordance with the applicable local
codes and ordinances. Receptacle replacement shall
be in accordance with the National Electric Code.
WARNING –Electrical Hazard
WARNING –Sharp Edges
This appliance has sheet metal and other components which
often have sharp edges. When working on this appliance,
avoid cutting yourself and other injury by handling these parts
with care and using adequate protective measures, such as
gloves.

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
7
MODEL IDENTIFICATION
Model Data Label Location

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
8
INSTALLATION SPECIFICATIONS
The following section is a detailed guide to the factory installation recommendations. It has been determined
that numerous service issues can be avoided if the installation is completed as suggested in this guide.
This section includes the instructions and information required for installing, adjusting and levelling the
Thermador side by side refrigerator. This information is also contained in the “Installation Guide” supplied to
customer with the product.
It should also be noted that if a service issue exists that is determined to be caused by a deviation from these
instructions; it may be deemed an “install issue” and may not be covered under product warranty. Please
consult the warranty section of the user manual shipped with the product
If you have any questions you can contact Thermador Technical Support @ 1-800-444-9091, Authorized
Servicers can access Quick Finder at http://portal.mch.bshg.com/portal.

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
9
Tools and Needed Supplies
Cont’d
Tools Needed
Parts Needed
IMPORTANT:
Installer: Leave installation
instructions with homeowner.
Homeowner: Keep installation
instructions for future reference.
Save these installation instructions
for the local electrical inspector’s use.
Gather the required tools and parts before starting installation.
Read and follow the instructions provided with any tools listed
here.
Cordless drill
Drill bits
Adjustable wrenches (2)
Phillips screwdriver
Small level
Appliance dolly
Torx T-27 driver
11/32” nut driver
3/8” & ½” open –end wrenches
5/32” hex key
¼” & 5/16” nut drivers
Tape measure
#8 x 3” (7.6 cm) wood screws
(Longer screws may be needed) (6)
If you are connecting the water line directly to copper tubing and not to
a shut off valve, you need a ferrule, a union, and a ¼” (6.35 mm)
compression fitting.
The refrigerator can be recessed in an opening between
cabinets or installed at the end of a cabinet run using a side
panel to enclose the refrigerator.

SERVICE MANUAL Thermador Built-In Refrigerator T42BD810NS, T42BD820NS, T42BR810NS, T42BR820NS, T48BD810NS, T48BD820NS, T48BR810NS, T48BR820NS
Copyright by BSH Home Appliances Corporation 1901 Main St ▪ Suite 600 ▪Irvine, CA 92614 58300000174337_ARA_EN_D 800 444-9091
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
10
Location Requirements
Do not install in a location where the temperature will
fall below 55 deg F (13 deg C).
Floor must support the refrigerator weight, more than 600 lbs
(272 kg), door panels and contents of the refrigerator.
Ceiling height must allow for side tipping radius See “Tipping Radius” page 11.
Location should not permit door to open fully. See “Door Swing Information” page 13-14.
Location must permit top grille removal. See “Opening Dimensions” this page.
Observe all governing codes and ordinances.
It is recommended that you do not install refrigerator near an oven, radiator or other heat source.
Opening Dimensions
To avoid tipping during use, the solid soffit must be within
1” (2.5 cm) max. height above the refrigerator. If the solid soffit is higher
than 1” (2.5 cm) or one is not available, then the refrigerator MUST be
braced.in an approved manor.
If the anti-tip boards are needed, they must be attached to the rear
wall studs 80” to 90” (203 cm to 229 cm) above the floor.
See “Anti-Tip Boards” page 20
NOTE: A clearance of 1/2 “(1.3 cm) must be maintained above the top
grille in order for the grille to be removed.
A grounded 3 prong electrical outlet should be
located within the specified number of inches
from the right-hand side, cabinets or end
panel. See the chart following the graphic for
the number of inches required for your model.
For more information, see “Electrical
Requirements”
The water shutoff should be located in the
base cabinet on either side of the refrigerator
or some other easily accessible area. If the
water shutoff valve is not in the cabinets, the
plumbing for the water line can come through
the floor or the back wall. See Water Supply
Requirements” page 10-11, for more
information.