The ice compartment high in a French door model's left door opened with its cover off, a small sensor clipped to the side of the ice maker and its thin wire running to a plug.

True clear ice maker
showing E1

On True's 15-inch clear ice models, E1 is thermistor 1 failure.

(844) 773-0701

Mon–Sat, 8am–8pm

  • Temperature sensors
  • Ice maker control and sensor repair
  • Source: True Residential

Book a visit

Three short steps, about a minute.

or call (844) 773-0701

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 maker

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.

01

Write down E1 and the model and serial numbers.

02

Turn the unit off with the power button to stop further cycles.

03

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 problems

Where E1 usually leads

Ice maker control and sensor repair.

Control board, thermistor or bin sensor · moderate to highest.

In True Residential's own words

Thermistor 1 is located on the evaporator outlet tube and is
True ADA-height 15-inch TRUE ICE (TUIADA-15-D) install guide (true-caliber.com PDF) True ADA-height 15-inch TRUE ICE (TUIADA-15-D) install guide (true-caliber.com PDF) True TUI-15-D Quick Reference Sheet, technical service bulletin (true-caliber.com PDF)

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 areas
A parent and a child filling two glasses with ice from the door dispenser in a bright family kitchen
For the heart of your home.

Questions
about E1.

Can I clear E1 myself?
Write down E1 and the model and serial numbers. If it comes back, it needs a visit.
What does E1 mean on a True ice maker?
Thermistor 1, on the evaporator outlet tube, has failed or has a loose connection. The control uses it to end each harvest.
Can I keep running my True with E1 showing?
True's guidance is to contact a service company. Without the harvest probe, cubes may not release properly.
Is E1 on a True the same as E2?
No. E1 is the evaporator probe that ends harvest; E2 is the condenser probe that cycles the fan.

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.

(844) 773-0701 Schedule a repair