

True clear ice maker
showing E1
On True's 15-inch clear ice models, E1 is thermistor 1 failure.
Mon–Sat, 8am–8pm
- Temperature sensors
- Ice maker control and sensor repair
- Source: True Residential
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or call (844) 773-0701
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What E1
actually means.
On True's 15-inch clear ice models, E1 is thermistor 1 failure. That thermistor sits on the evaporator outlet tube and ends the harvest; E1 means the probe has a bad or loose connection, so the unit cannot time harvest correctly.
True Residential ice maker display
What to do when E1 shows on the ice makerKind of codeTemperature sensors
The control lost track of how cold the ice mold or the ice compartment is, because a thermistor reads nonsense or its wire lost contact. Without that reading the ice maker cannot tell when a batch is frozen, so it stops or harvests at the wrong time. Frost packed around the sensor and a loose plug are checked before the sensor itself is changed.
Usually leads toIce maker control and sensor repair
The control board, the thermistors, the bin sensor and the wiring that decide when an ice maker fills, freezes and stops, tested and repaired when a light flashes, a code shows, a breaker trips or the ice never stops coming.
Shows up asNo Ice Coming From the Ice Maker
The mold sits empty or holds one frozen batch that never drops, the bin stays bare for days, and the dispenser gives water as usual: an ice maker not making ice while the rest of the appliance carries on normally.
MakeTrue Residential
True Residential undercounter ice maker repair, from a slow harvest to water that will not drain.
SourceTrue ADA-height 15-inch TRUE ICE (TUIADA-15-D) install guide (true-caliber.com PDF)
True Residential 15-inch clear ice models (TUI-15-D, and the ADA-height TUIADA-15-D). The letters are read from the display images in True's guide and quick reference sheet; the display alternates the two words.
Before you book,
in this order.
Each step comes from True Residential's own guidance for E1 on its ice makers. Follow it to the end: the last card says whether this is a visit.
Write down E1 and the model and serial numbers.
Turn the unit off with the power button to stop further cycles.
Book a visit; True's action for E1 is to contact a service company.
Still there?
It usually turns into ice maker control and sensor repair. Book with the code and the model number.
What not to do
E1 on this model is not a water or drain problem. It concerns the probe that tells the control when a harvest is done.
What you may
notice with it.
The ice maker problems E1 tends to arrive with. Answer these at the ice maker before anyone is booked.
All problemsWhere E1 usually leads
Ice maker control and sensor repair.
True Residential
ice makers.
True Residential undercounter ice maker repair, from a slow harvest to water that will not drain.
True Residential ice maker repair
Freezer ice maker
The ice maker that sits inside the freezer compartment itself, a tray that twists or a mold with a heater and an ejector, dropping cubes into a bin or drawer you open by hand, with no dispenser on the door.
Undercounter ice maker
A built-in residential ice maker that lives under a kitchen, bar or basement counter, making clear cubes or chewable nugget ice on its own cooling system, with a water line in and a gravity drain or a small drain pump out.
In True Residential's own words
Thermistor 1 is located on the evaporator outlet tube and is
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. True Residential 15-inch clear ice models (TUI-15-D, and the ADA-height TUIADA-15-D). The letters are read from the display images in True's guide and quick reference sheet; the display alternates the two words.
True Residential E1 ice maker 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 E1.
Can I clear E1 myself?
What does E1 mean on a True ice maker?
Can I keep running my True with E1 showing?
Is E1 on a True the same as E2?
Back to your everyday
Still showing E1?
Book with the code or the blink pattern written exactly as the ice maker shows it, the full model number, and whether there is any water on the floor — when there is a code, that is where the diagnosis starts.