Thermador coffee machine: OVERVOLTAGE OR UNDERVOLTAGE
Thermador tells owners of the TCM24 that this message means the incoming voltage is too high or too low, and sends them to the power company or an electrician.
Mon–Sat, 8am–8pm
- Control board and power
- Coffee machine control board repair
- Source: Thermador
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or call (844) 551-4777
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What OVERVOLTAGE OR UNDERVOLTAGE
actually means.
Thermador tells owners of the TCM24 that this message means the incoming voltage is too high or too low, and sends them to the power company or an electrician. The built-in runs through a separate transformer, so the transformer and its connections are also on the list when the house supply checks out.
Thermador coffee machine display · also shown as Overvoltage or undervoltage
What to do when OVERVOLTAGE OR UNDERVOLTAGE shows on the coffee machineKind of codeControl board and power
The electronics that read the keys and run the grinder, the pump and the heater have flagged a problem with themselves or with the power reaching them: a supply that dipped or spiked, a board that lost its settings after an outage, a display or touch panel that stopped answering, or a relay that stuck. One switch-off at the key or the breaker clears a passing glitch; a message that returns, or any hot smell, means the power stays off and a technician tests the board.
Usually leads toCoffee machine control board repair
Testing and replacing the power board, control board and touch panel of a coffee machine, and the sensors they read.
Shows up asWhat a Coffee Machine Error Code or Warning Symbol Means
A coffee machine error code may show as a short string of letters and numbers, a flashing symbol for water, grounds or the brew unit, a short sentence on a text display, or a machine that stops with one light blinking.
MakeThermador
Thermador built-in coffee machines are diagnosed in the cabinet they sit in, starting with how the owner fills, cleans and empties the unit day to day.
SourceThermador Coffee Machines – Troubleshooting page
On Thermador's troubleshooting page and in the TCM24PS Use and Care Guide; the TCM24 installation guide names the transformer type to be used.
Before you book,
in this order.
Each step comes from Thermador's own guidance for OVERVOLTAGE OR UNDERVOLTAGE on its coffee machines. Follow it to the end: the last card says whether this is a visit.
Note whether other appliances or lights on the same circuit dim or flicker.
Have an electrician measure the dedicated outlet in the neighboring cabinet that feeds the coffee machine's transformer.
If the supply is in range and the message stays, book a visit.
Still there?
It usually turns into coffee machine control board repair. Book with the code and the model number.
What not to do
An empty display means the supply is gone altogether rather than out of range. If the breaker trips as the TCM24 heats up, that is its own electrical problem.
What you may
notice with it.
The coffee machine problems OVERVOLTAGE OR UNDERVOLTAGE tends to arrive with. Answer these at the coffee machine before anyone is booked.
All problems
Where OVERVOLTAGE OR UNDERVOLTAGE usually leads
Coffee machine control board repair.
Thermador
coffee machines.
Thermador built-in coffee machines are diagnosed in the cabinet they sit in, starting with how the owner fills, cleans and empties the unit day to day.
Thermador coffee machine repairMore Thermador codes
Control board and power on other makes
All 13 codes of this kind
Built-in coffee system
The coffee machine set flush into a tall kitchen cabinet, filled from a water tank behind its front, grinding beans and brewing each cup on its own before sliding out on rails for service.
Plumbed coffee system
The built-in coffee machine connected to the house water supply, filling itself through an inlet valve and sometimes draining its rinse water to a line of its own, so nobody ever lifts out a tank.
In Thermador's own words
If the display shows OVERVOLTAGE OR UNDERVOLTAGE, the voltage is too high or too low.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. On Thermador's troubleshooting page and in the TCM24PS Use and Care Guide; the TCM24 installation guide names the transformer type to be used.
Thermador OVERVOLTAGE OR UNDERVOLTAGE coffee machine repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about OVERVOLTAGE OR UNDERVOLTAGE.
Can I clear OVERVOLTAGE OR UNDERVOLTAGE myself?
Where is the transformer on a Thermador built-in coffee machine?
Can a generator or battery backup cause this Thermador message?
Should I plug my Thermador into a power strip to protect it?
Back to your everyday
Still showing OVERVOLTAGE OR UNDERVOLTAGE?
Three things make the booking useful: the message or number exactly as the display showed it, the full model number from the plate, and whether the machine still grinds and pours at all. Send those and the likely part can be looked up before the van leaves.