Error code
U-Line error code Temp Hi 12H+
U-Line error code Temp Hi 12H+: The same condition as Temp Hi 6H+ and twice as long: the zone has been ten degrees over its set point for more than twelve hours. Which machines can actually raise it, where the number lives on this make, and what to do next.
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What we can confirm
Code Temp Hi 12H+, from the manufacturer's own documentation
A code is only meaningful together with the machine showing it — the same digits mean different things on different equipment.
The code
Temp Hi 12H+
The same condition as Temp Hi 6H+ and twice as long: the zone has been ten degrees over its set point for more than twelve hours. The maker publishes both because the second is about the contents rather than the appliance — twelve hours warm is a food question before it is a repair question. On a two-zone cabinet the notification carries (L) or (R) to say which zone it came from; the maker's own note is that single zone models do not use the left or right indicator at all.
or call (305) 851-2207
What it narrows down to
Twelve hours, ten degrees above set point
Diagnostic
From $95, credited to the repair
On the same appliance
What else belongs to the beverage centers
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
Door 1, the upper door on a two-door
Door 2 — the lower door of a
Thermistor 1 open. In plain terms, the cabinet
Thermistor 2 open. In plain terms, the evaporator
Thermistor 3 open. In plain terms, the third
Thermistor 1 shorted. In plain terms, the cabinet
Thermistor 2 shorted. In plain terms, the evaporator
Thermistor 3 shorted. In plain terms, the third
The display has stopped answering the board
The cabinet sensor circuit is open
The evaporator sensor circuit is open
The room sensor circuit is open
The same digits mean different things on different equipment. Search the full code list
In more detail
About U-Line error code Temp Hi 12H+
What Temp Hi 12H+ means, in the maker's own words
The same condition as Temp Hi 6H+ and twice as long: the zone has been ten degrees over its set point for more than twelve hours. The maker publishes both because the second is about the contents rather than the appliance — twelve hours warm is a food question before it is a repair question. On a two-zone cabinet the notification carries (L) or (R) to say which zone it came from; the maker's own note is that single zone models do not use the left or right indicator at all.
Quoted rather than interpreted
(L) (R) Temp Hi 12H+ — Left or right zone temperature +10 degrees over set point for over 12 hours.
From ERROR NOTIFICATION table, 3000 Series User Guide, in a User Guide & Service Manual downloaded from U-Line's own site. Nothing on this page is decoded beyond what that sentence says.
Where this notification actually lives
On your display, which on this make is the exception rather than the rule. The 3000 Series does not use the E numbers at all: it watches its inputs continuously and writes the notification on the user interface in plain words, so there is no hidden log to open and no key to hold. Every other U-Line in this catalog does the opposite — it logs the number in memory and shows you nothing but the door. If you are reading a phrase rather than a number, this is the series you own.
What to do about it
- Deal with what is inside first. Twelve hours ten degrees above a refrigeration set point is long enough that the contents are the more expensive loss.
- Verify the door is closed and sealing, then look for frost: if excessive frost is also noted, inspect the door and gasket for proper seal and alignment.
- Inspect the evaporator fan for proper operation.
- Then the refrigeration system itself. A cabinet twelve hours warm with a good door and a running fan is the case where the sealed system is genuinely the answer.
Where this goes next
The job this usually becomes is diagnostic visit, and every one of those pages carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call (305) 851-2207 and describe what the display is doing before booking anything.
u line temp hi 12h error names a notification the 3000 Series puts on the display itself, which is what makes it different from every other number this maker logs.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards