Reference · Codes
Thermador Refrigeration Error Codes: How to Read Them
A code on a Thermador column display is a shorthand for one thing: the control has read a value from a circuit that it cannot reconcile with what it expects. That is genuinely useful and it is not a diagnosis, and the difference between those two matters more than the code number does.
Flat $95 service call — the trip and the diagnosis — credited against the repair if you approve one. 8:00 am – 8:00 pm, seven days.
What the code identifies
The great majority of refrigeration codes on these appliances fall into a few families. Sensor codes say a temperature probe is reading open, shorted or implausible. Fan codes say a motor is not returning the speed feedback the board asked for. Door codes say a door has been open longer than the control tolerates. Defrost codes say a defrost cycle did not terminate the way it should have. Communication codes say two boards are not talking. In every case the code names the circuit, not the component in it.
Why that distinction is not pedantry
A sensor code has three possible causes and only one of them is the sensor: the probe itself, the harness or connector between the probe and the board, or the board input reading it. Replacing the probe on the strength of the code resolves perhaps two cases in three and leaves the third exactly where it started, with the part paid for. Any competent diagnosis of a coded fault separates those three with a meter.
What to do when a code appears
- Write it down exactly as displayed, including whether it is steady or flashing — codes are frequently lost when power is cycled
- Put a thermometer in the compartment and note what it actually reads against the set point
- Note whether anything changed recently — a power cut, a filter change, a door left open, a heatwave
- Only then cycle the power, because a code that clears and stays clear after a genuine one-off event is not a fault
And the honest caveat
Code tables vary by model and by production year, and a table found online for a different column will confidently tell you the wrong thing. The model and serial number decide which table applies. That is why the number on the plate inside the compartment is asked for on every call.
Cost
Quoted in full before anything is opened
Flat $95 service call covering the visit and full diagnosis, credited against the repair once you approve it. The bands below are where most repairs land once the fault is known.
- Door gasket or seal replacement$290–$760
- Evaporator or condenser fan motor$320–$650
- Defrost heater, thermostat or sensor$280–$680
- Ice maker, water valve or supply line$300–$700
- Electronic control board$480–$920
- Compressor or sealed-system repair$1,000–$2,330
Worth repairing? A comparable new unit runs $8,270 to $19,510
A comparable built-in refrigerator, appliance only — before delivery, installation, custom panels or cabinetry work. Undercounter and wine units sit below this band; a column replacement is usually two purchases rather than one.
What moves a job inside its band
Which circuit failed
A door seal, a fan motor, a defrost heater and a sealed system sit at very different points on the same range. What failed decides most of the figure before anything else does.
Whether the part is still made
A current platform part arrives in days. A superseded board or a discontinued evaporator means a supersession lookup and a longer wait, and that shows up in the quote honestly.
What it takes to reach it
A hillside house with the unit backed onto an exterior wall, or a column boxed in by a stone counter, is more work to open than a unit that rolls forward. Access is quoted, not discovered.
One trip or two
If the part is on the van it finishes that day. If not, the return is inside the quoted figure rather than added to it afterwards.
Keep reading
Pages next to this one
Book the visit
A Thermador column showing a code — call with the code exactly as displayed and the model number.
(781) 675-1098Flat $95 service call, credited against an approved repair.