Thermador dishwasher
showing E27
E27 says the voltage feeding the Thermador is too low.
Mon–Sat, 8am–8pm
- Mode, not a failure
- No repair needed
- Source: Thermador
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or call (844) 430-4286
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What E27
actually means.
E27 says the voltage feeding the Thermador is too low. Thermador states plainly that the dishwasher itself is not the problem.
Thermador dishwasher display
What to do when E27 shows on the dishwasherKind of codeMode, not a failure
A setting someone turned on, or a reminder the machine shows on purpose — a control lock, a demo mode, a rinse-aid prompt. Nothing is broken and no part is needed.
Usually leads toNo repair
Have an electrician check the home's voltage and the wiring to the dishwasher circuit.
Shows up asDishwasher Not Starting
The door is shut and a cycle is chosen, but nothing happens, or the lights come on and it will not run.
MakeThermador
Luxury built-in dishwashers from the BSH family, in stainless and panel-ready versions.
SourceThermador US support: Dishwasher Error Codes
On a two-digit Thermador display; four-digit machines show E9001 for low supply voltage.
Before you book,
in this order.
Each step comes from Thermador's own guidance for E27 on its dishwashers. Follow it to the end: the last card says whether this is a visit.
Have an electrician check the home's voltage and the wiring to the dishwasher circuit.
Book a visit only if the supply tests normal and E27 still shows.
Cleared?
No part needed replacing. If the next full cycle still stops partway or leaves water in the tub, treat that as a new problem.
What not to do
No dishwasher part needs replacing for E27 unless the voltage turns out to be fine.
What you may
notice with it.
The dishwasher problems E27 tends to arrive with. Answer these at the dishwasher before anyone is booked.
All problems
Dishwasher Not Starting
5 causes, cheapest first
No repair indicated
Nothing to repair.
A setting someone turned on, or a reminder the machine shows on purpose — a control lock, a demo mode, a rinse-aid prompt. Nothing is broken and no part is needed.
Read these
before the visit.
Short guides that make the call quicker and the diagnosis cheaper.
All guidesThermador
dishwashers.
Luxury built-in dishwashers from the BSH family, in stainless and panel-ready versions.
Thermador dishwasher repair
Built-in dishwasher
The standard 24-inch machine under the counter, and the one nearly every American kitchen has.
Panel-ready dishwasher
Hidden behind a cabinet door, controlled from the top edge, and repaired with the panel's weight in mind.
Compact dishwasher
The 18-inch and ADA-height machines for small kitchens, where the tight tub changes both loading and repairs.
In Thermador's own words
E27 - The supply voltage is too low.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. On a two-digit Thermador display; four-digit machines show E9001 for low supply voltage.
Thermador E27 dishwasher 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 E27.
Can I clear E27 myself?
Is my Thermador broken if it shows E27?
Who should check E27 on a Thermador first?
Back to your everyday
Still showing E27?
Book with the characters exactly as shown, the full model number, and whether any water is on the floor — for a code, that is where the diagnosis begins.