Thermador Refrigerator: compressor failure
What is this symptom?
Experiencing compressor failure in your Thermador refrigerator? The compressor may not run, leading to uncooled refrigerator and freezer compartments. You might hear clicking sounds or no noise at all. This issue often arises during normal operation when cooling unexpectedly stops, indicating potential internal faults.
Important Tips for Thermador Models
- Thermador troubleshooting identifies start relay/power issues and poor ventilation as specific factors for compressor not running
Possible Causes
Faulty start relay or overload protector
How to Identify: Compressor clicks repeatedly or tries to start but fails; refrigerator warm; no continuous run sound
Part: Start relay / overload protector
Overheating due to poor ventilation/dirty condenser coils
How to Identify: Excessive heat around compressor area; dirty coils; fridge in poorly ventilated location; compressor stops after long run periods
Part: Condenser coils, condenser fan
Internal compressor mechanical wear or failure
How to Identify: No start with no relay or electrical fault detected; compressor silent or humming constantly without running
Part: Compressor motor internal components
Refrigerant leaks resulting in compressor overwork
How to Identify: Poor cooling with abnormal pressure readings; oil residue around refrigerant lines
Part: Refrigerant system, compressor lubrication circuit
DIY Solutions
Check and clean condenser coils
- Unplug refrigerator.
- Locate condenser coils (usually at back or underneath).
- Use brush/vacuum to remove dust and debris.
- Restore power and observe cooling performance.
Test and replace start relay/overload device
- Unplug refrigerator.
- Remove rear panel to access compressor.
- Remove start relay and test continuity with multimeter.
- Replace start relay/overload if no continuity or signs of failure.
- Reassemble and power on to test compressor start.
Next step
Choose the next step for compressor failure
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Condenser Fan Motor
Moves air across the condenser and compressor compartment to remove heat.
- Typical part-only price
- $35 - $100
- DIY difficulty
- Medium
- Estimated time
- 30-60 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Compressor
Compresses refrigerant within the sealed cooling system and requires specialized service equipment.
Model-compatible Refrigerator parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Refrigerator Condenser Coil Brush
For routine cleaning of accessible condenser areas where the manufacturer permits it. It does not repair a sealed-system or compressor fault.
Model-Compatible Refrigerator Water Filter
A routine replacement item on models with a water filter. Match the complete appliance model and existing filter number before ordering.
Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Professional Repairs
Compressor replacement
Refrigerant leak repair and system recharge
Control board / power circuit repair
When to Call a Professional
Preventive Maintenance
-
Clean condenser coils: Overheating and compressor overwork
Frequency: twice per year -
Ensure adequate ventilation: Heat buildup around compressor
Frequency: ongoing -
Use surge protector: Voltage-related electrical damage
Frequency: continuous
Frequently Asked Questions
Why is my Thermador Refrigerator compressor failure?
How do I fix Thermador Refrigerator compressor failure myself?
How much does it cost to fix compressor failure?
When should I call a technician for compressor failure?
References & Sources
Community Analytical Insights
Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions
Common Issues Reported by Users
- Compressor overload due to dirty condenser coils
- Faulty start relay preventing compressor from starting
- Refrigerant leak causing insufficient cooling
User Suggested Solutions
-
Clean the condenser coils. Unplug the refrigerator, locate the coils (usually at the back or underneath), and use a vacuum or brush to remove dirt and debris. Plug the refrigerator back in and check if the compressor starts.
-
Replace the start relay. Unplug the refrigerator, locate the relay (usually on the compressor), and disconnect it. Replace it with a new relay and reconnect everything. Plug the refrigerator back in to see if the compressor starts.
-
Check for refrigerant leaks. This requires specialized tools and skills. If a leak is suspected, contact a professional technician to locate and repair the leak, and recharge the refrigerant.
Limited-source guidance; percentages and success-rate claims are not shown
View
Sources
Data compiled from real discussions on r/appliancerepair and r/Appliances:
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