Beverage-Air uLi: the line voltage is too low
The Cross Temp control watches the supply voltage and blinks a low voltage alarm when it drops below its limit; the alarm table prints the blinking text as ulo.
Mon–Sat, 8am–8pm
- Controls and power
- Commercial controls and board repair
- Source: Beverage-Air
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What uLi
actually means.
The Cross Temp control watches the supply voltage and blinks a low voltage alarm when it drops below its limit; the alarm table prints the blinking text as ulo. Low voltage makes the compressor struggle and run hot. The fix is nearly always on the building side.
Beverage-Air commercial appliance display · also shown as uLo
What to do when uLi shows on the commercial applianceKind of codeControls and power
The controller itself is reporting trouble, or the supply behind it is: a display with dead segments, a keypad that stopped responding after steam or degreaser got behind it, relays that stick, stored recipes or cycles that vanished overnight, a blown control fuse, or one leg of a three-phase feed missing so half the heat or the pump is gone. A full power cycle at the breaker, done as the manual describes, clears a passing glitch; a code that returns, a scorched smell or any sign of moisture behind the panel means the breaker stays off, and that is a visit.
Usually leads toCommercial controls and board repair
Controllers, touch panels, relays, contactors and interlocks tested, and replaced only when the evidence says so.
Shows up asCommercial Appliance Error Code on a Combi, Fryer, Dish Machine or Laundry Display
A commercial appliance error code appears as letters or numbers on a combi, fryer, reach-in controller, dish machine or laundry machine display, or as a flashing light or an alarm tone.
MakeBeverage-Air
When a Beverage-Air cabinet drifts warm mid-shift, the first minutes of the visit go to where the food went and what the temperature log recorded.
SourceBeverage-Air Cross Temp (CT) freezer/refrigerator user manual, 809-154A (rev. 02/26)
Listed in the electronic controller alarms table of Beverage-Air's Cross Temp (CT) manual (rev. 02/26).
Before you book,
in this order.
Each step comes from Beverage-Air's own guidance for uLi on its commercial appliances. Follow it to the end: the last card says whether this is a visit.
Plug the unit straight into its own outlet, with no extension cord.
Note whether other equipment on the circuit starts when the alarm appears.
Have an electrician check the circuit, then book a visit if the alarm returns on good voltage.
Still there?
It usually turns into commercial controls and board repair. Book with the code and the model number.
What not to do
uLi is not a failed control; it is always active on the Cross Temp and reflects the supply. The high voltage alarm, uHi, has the same first checks.
What you may
notice with it.
The commercial appliance problem uLi tends to arrive with. Answer these at the commercial appliance before anyone is booked.
All problems
Where uLi usually leads
Commercial controls and board repair.
Beverage-Air
commercial appliances.
When a Beverage-Air cabinet drifts warm mid-shift, the first minutes of the visit go to where the food went and what the temperature log recorded.
Beverage-Air commercial appliance repairMore Beverage-Air codes
Controls and power on other makes
In Beverage-Air's own words
beep the Low voltage alarm
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed in the electronic controller alarms table of Beverage-Air's Cross Temp (CT) manual (rev. 02/26).
Beverage-Air uLi commercial appliance 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 uLi.
Can I clear uLi myself?
Why does my Beverage-Air show a low voltage alarm at lunch?
Can low voltage damage my Beverage-Air?
Why does the Beverage-Air manual show ulo and uLi?
Back to your everyday
Still showing uLi?
A booking with a code goes further when it has the code as shown, the model and serial from the data plate, and a word on whether the unit still holds temperature, heats, rinses or spins. With those three, the office can match the likely part to your unit the same day.