CellarCool E10: the controller's clock battery needs replacing
E10 is CellarCool's notice that the clock battery on the digital controller is dead.
Mon–Sat, 8am–8pm
- Power and controller
- Wine cellar cooling diagnostic visit
- Source: CellarCool
Book a visit
Three short steps, about a minute.
or call (844) 398-5977
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What E10
actually means.
E10 is CellarCool's notice that the clock battery on the digital controller is dead. The manual is explicit that this does not affect how the unit operates. It is a maintenance item, not a reason to worry about the wine.
CellarCool wine cellar cooling unit display
What to do when E10 shows on the wine cellar cooling unitKind of codePower and controller
The unit saw its supply dip, surge or drop out, or the controller has lost contact with the board it drives. The cause is as often a shared circuit, a tripped GFCI outlet, a loose connection or a storm outage as the unit itself. A breaker that will not stay on or a scorched smell means switching the circuit off at the panel, standing dry and away from the unit, and keeping the cellar door closed until the technician arrives.
Usually leads toWine cellar cooling diagnostic visit
A visit that reads the cellar, the room the heat goes to and the cooling unit itself, and ends with one named cause, whether it is a part or the room.
Shows up asCellar Cooling Controller Display Blank
A cellar cooling controller display blank shows nothing at all, flickers, shows half a number, or ignores its buttons, sometimes while the unit keeps cooling and sometimes while it stops.
MakeCellarCool
Service for CellarCool systems when the wine room drifts warm, turns dry or the unit starts and stops every few minutes.
SourceCellarCool CM2500 (Ceiling Mount split) manual, version 4 (02/2022)
CellarCool split, Ceiling Mount and fully ducted Ultimate controllers (CM2500, 3500-S/5000-S, Ultimate-R manuals). The CX through-the-wall series does not list this code.
Before you book,
in this order.
Each step comes from CellarCool's own guidance for E10 on its wine cellar cooling units. Follow it to the end: the last card says whether this is a visit.
Check that the cellar reading is steady, as it should be.
Replace the clock battery following your manual, or ask for it at the next service visit.
Deal first with any other code showing alongside E10.
Still there?
It usually turns into wine cellar cooling diagnostic visit. Book with the code and the model number.
What not to do
E10 is not a power or wiring problem, and it does not mean the controller is failing. Only the clock is affected.
What you may
notice with it.
The wine cellar cooling unit problems E10 tends to arrive with. Answer these at the wine cellar cooling unit before anyone is booked.
All problems
CellarCool
wine cellar cooling units.
Service for CellarCool systems when the wine room drifts warm, turns dry or the unit starts and stops every few minutes.
CellarCool wine cellar cooling unit repair
Through-the-wall cellar cooling unit
A self-contained box set into an opening in the cellar wall: its cold face blows into the wine room, and its warm face breathes out into the room next door.
Ducted cellar cooling unit
A self-contained cooling unit placed outside the cellar, in a mechanical room, attic or basement, that sends chilled air in and takes return air back through insulated ducts.
Split-system cellar cooling
An evaporator inside or beside the cellar and a condensing unit outside or in another room, joined by an insulated copper line set and charged on site.
In CellarCool's own words
Clock battery is dead
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. CellarCool split, Ceiling Mount and fully ducted Ultimate controllers (CM2500, 3500-S/5000-S, Ultimate-R manuals). The CX through-the-wall series does not list this code.
CellarCool E10 wine cellar cooling unit 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 E10.
Can I clear E10 myself?
Is E10 on a CellarCool worth a service call?
Why did E10 appear on my CellarCool after years of use?
Does a CellarCool CX show E10?
Back to your everyday
Still showing E10?
When you book, type the code or the blink count as the controller shows it, add the full model number, and say what the thermometer in the cellar reads now — that gives the technician a head start.