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The inside rear wall of an empty wine cooler with the racks pulled out, a small temperature probe clipped to the wall and its thin lead running into a grommet.

Perlick PEF: the evaporator probe has stopped reading

PEF is the G5 evaporator probe alarm.

(844) 709-0727

Mon–Sat, 8am–8pm

  • Temperature sensors
  • Wine cooler thermostat and sensor repair
  • Source: Perlick

Book a visit

Three short steps, about a minute.

or call (844) 709-0727

What PEF
actually means.

PEF is the G5 evaporator probe alarm. The probe sits at the evaporator inlet, and the control uses it to manage the coil and defrost. With it out, frost can build or cooling can become erratic.

Perlick wine cooler display

What to do when PEF shows on the wine cooler

Kind of codeTemperature sensors

The control has lost a believable reading from one of its thermistors: the probe in a zone, the one on the cold plate or coil, or on some models the one watching the room. With no trustworthy number, the cabinet either chills the bottles far below cellar temperature or lets a zone drift warm. A sensor sitting in frost, pinched behind a rack or unplugged during a move is ruled out before a new one is ordered.

Usually leads toWine cooler thermostat and sensor repair

Testing and replacing the thermostat or the temperature sensors that tell a wine cooler when to cool, when the cabinet runs too cold, too warm or back and forth.

Shows up asWine Cooler Error Code

A wine cooler error code appears as letters and digits on the display, a flashing temperature, dashes where a number should be or a blinking symbol, sometimes with an alarm tone and sometimes while the cabinet stays perfectly cool.

MakePerlick

Perlick wine cooler repair for units under the counter or behind the bar that no longer keep a steady temperature.

SourcePerlick G5 User Installation & Operation Manual, Form Z3023 (linked from the G5 Luxe 24-inch wine reserve page)

Perlick G5 Core and G5 Luxe wine reserves with the touch display, single-zone (URS15W, URS24W) and dual-zone (URS24D). Up to ten past alarms stay listed, with date and time stamps, under Alarm History.

Before you book,
in this order.

Each step comes from Perlick's own guidance for PEF on its wine coolers. Follow it to the end: the last card says whether this is a visit.

01

Acknowledge the alarm.

02

Watch for frost on the back wall and for temperature swings over the next few days.

03

If PEF comes back within a week, book a visit.

Still there?

It usually turns into wine cooler thermostat and sensor repair. Book with the code and the model number.

What not to do

PEF does not report the wine temperature; zone probes do that and report as P1F or P2F. It is also not the evaporator fan, which is FEF.

What you may
notice with it.

The wine cooler problems PEF tends to arrive with. Answer these at the wine cooler before anyone is booked.

All problems

Before you call

Wine Cooler Error Code

All 7 causes, cheapest first

It also comes with

The control panel of a built-in wine column in a kitchen, its small display glowing with abstract amber segments beside the top of the glass door, unlabeled bottles lying on wooden racks behind the glass below. Problem

Wine Cooler Error Code

7 causes, cheapest first

Where PEF usually leads

Wine cooler thermostat and sensor repair.

Thermostat or zone temperature sensor · low to moderate.
Book a visit What the job involves

Perlick
wine coolers.

Perlick wine cooler repair for units under the counter or behind the bar that no longer keep a steady temperature.

Perlick wine cooler repair

More Perlick codes

T1HT2HT1LDO1DO2PWRP1FPHFTCHFEFTELUIX

Temperature sensors on other makes

ASKO H1Fisher & Paykel F3Marvel EuSub-Zero EC05U-Line Zone T OpenVinotemp E1
All 19 codes of this kind
A stainless undercounter wine cooler with a tinted glass door built into white shaker cabinetry beneath a marble counter in a US home kitchen, rows of dark wine bottles lying on beech wood racks inside, softly lit. Perlick builds this

Undercounter wine cooler

A wine cooler about the height of a base cabinet, built in under the counter of a kitchen, a bar or a butler's pantry, with a glass door, sliding racks and a vented toe grille at the floor.

 A stainless dual-zone wine cooler with a glass door in a US home bar, a slim divider shelf separating an upper compartment of dark red wine bottles and a lower compartment of pale green bottles, all, lying on oak racks under two soft lights. Perlick builds this

Dual-zone wine cooler

A wine cooler with two separately set compartments, upper and lower or side by side, so reds and whites or a storage zone and a serving zone each keep their own temperature.

In Perlick's own words

PEF Evaporator Probe Fault
Perlick G5 User Installation & Operation Manual, Form Z3023 (linked from the G5 Luxe 24-inch wine reserve page) Perlick G5 User Installation & Operation Manual, Form Z3023 (linked from the G5 Luxe 24-inch wine reserve page) Perlick G5 User Installation & Operation Manual, Form Z3023 (linked from the G5 Luxe 24-inch wine reserve page)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Perlick G5 Core and G5 Luxe wine reserves with the touch display, single-zone (URS15W, URS24W) and dual-zone (URS24D). Up to ten past alarms stay listed, with date and time stamps, under Alarm History.

Perlick PEF wine cooler 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

Tampa BayFL · 31 areas

OrlandoFL · 30 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

San Francisco Bay AreaCA · 74 areas

A couple choosing a bottle together from an undercounter wine cooler in a warm kitchen at dusk
For the heart of your home.

Questions
about PEF.

Can I clear PEF myself?
Acknowledge the alarm. If it comes back, it needs a visit.
What does the evaporator probe do in a Perlick?
It reads the temperature at the evaporator inlet, and the control uses that to judge the coil and its defrost.
Can PEF cause ice in a wine unit?
It can, if the control cannot tell when the coil needs defrosting.
Is PEF urgent?
Not usually. Acknowledge it, watch the temperature, and book a visit if it returns.

Back to your everyday

Still showing PEF?

When you book, copy the code or the blink pattern as the display shows it, add the whole model number, and say whether the bottles still feel cool — a code gives the technician a head start.

Schedule a repair Call (844) 709-0727
(844) 709-0727 Schedule a repair