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Friedrich
Dehumidifier

Model # D40B Official Friedrich dehumidifier

Here are the diagrams and repair parts for Official Friedrich D40B dehumidifier, as well as links to manuals and error code tables, if available.

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Owner’s manual
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 31 parts  |
Power Cord 67500024
#B3

Cabinet parts diagram

Power cord

Part #67500024

The manufacturer no longer makes this part, and there's no substitute part

Grille 67306010
#C4

Cabinet parts diagram

Grille

Part #67306010

The manufacturer no longer makes this part, and there's no substitute part

Cabinet 67400185
#D1

Cabinet parts diagram

Cabinet

Part #67400185

The manufacturer no longer makes this part, and there's no substitute part

Shroud 67500087
#A5

Cabinet parts diagram

Shroud

Part #67500087

The manufacturer no longer makes this part, and there's no substitute part

Motor Mount 67400112
#A4

Cabinet parts diagram

Motor mount

Part #67400112

The manufacturer no longer makes this part, and there's no substitute part

Discharge Tube Assembly 67500091
#H2

Cabinet parts diagram

Discharge tube assembly

Part #67500091

The manufacturer no longer makes this part, and there's no substitute part

Compressor, Set 67500068
#H5

Cabinet parts diagram

Compressor, set

Part #67500068

The manufacturer no longer makes this part, and there's no substitute part

Hose Connector 67500097
#J2

Cabinet parts diagram

Hose connector

Part #67500097

The manufacturer no longer makes this part, and there's no substitute part

Suction Tube Assembly 67500088
#H1

Cabinet parts diagram

Suction tube assembly

Part #67500088

The manufacturer no longer makes this part, and there's no substitute part

Sensor Assembly 67500093
#E1

Cabinet parts diagram

Sensor assembly

Part #67500093

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your dehumidifiers

Choose a symptom to see related dehumidifier repairs.

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Why does my dehumidifier run all the time?

Main causes: dehumidifier too small for the space, bad humidity sensor, faulty evaporator thermistor, low refrigerant, b…

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Why isn't my dehumidifier draining?

Main causes: clogged drain hose, drain hose not properly connected…

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Why won't my dehumidifier turn on?

Main causes: lack of electrical power, wiring failure, electronic control board failure, user interface control failure…

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Why is there frost on my dehumidifier's coil?

Main causes: room temperature below 65 degrees Fahrenheit, control system failure…

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Why isn't my dehumidifier's remote monitor working?

Main causes: weak or dead batteries, out of range, radio frequency interference…

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Why doesn't my dehumidifier remove moisture?

Main causes: dirty air filter, clogged grill, dehumidifier placed too close to the wall, dehumidifier too small for the …

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Why won't my dehumidifier run?

Main causes: collection bucket not installed, collection bucket full of water…

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Why is my dehumidifier noisy?

Main causes: loose fan motor mounting screws, loose compressor mounting bracket screws, bad fan, faulty compressor…

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Why does my dehumidifier leak water?

Main causes: collection bucket not installed correctly, cracked collection bucket, loose drain hose connection…

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Most common repair guides to help fix your dehumidifiers

These step-by-step repair guides will help you safely fix what’s broken on your dehumidifier.

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How to replace a dehumidifier sensor assembly

How to replace a dehumidifier sensor assembly

If the humidifier sensor doesn’t properly detect humidity or evaporator temperature, install a new sensor assembly, foll…

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Repair difficulty
Time required
 45 minutes or less
How to replace a dehumidifier user interface control board

How to replace a dehumidifier user interface control board

If the dehumidifier doesn’t respond when you try to set it, follow these steps to replace it.…

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Repair difficulty
Time required
 30 minutes or less
How to replace a dehumidifier electronic control board

How to replace a dehumidifier electronic control board

If the dehumidifier won’t power up because the control board has failed, use the steps in this repair guide to replace t…

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Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your dehumidifiers

Use the advice and tips in these articles to get the most out of your dehumidifier.

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Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

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How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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