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The lower grille of a built-in home refrigerator in a kitchen, the grille removed and leaning against the cabinet, a long narrow coil brush lying on a cloth on the floor in front of it, nobody in the frame.

True High Temperature Alarm: the cabinet has held warm for a full hour

True's control does not raise this alarm for a brief warm spell from normal door use.

(844) 879-5178

Mon–Sat, 8am–8pm

  • Temperature
  • Condenser coil cleaning
  • Source: True Residential

Book a visit

Three short steps, about a minute.

or call (844) 879-5178

What High Temperature Alarm
actually means.

True's control does not raise this alarm for a brief warm spell from normal door use. It waits for the zone to hold at or above about 50°F in a refrigerator zone, or 70°F in a wine cabinet zone, for one full consecutive hour before posting the alert.

True Residential home appliance display · also shown as High Temps

What to do when High Temperature Alarm shows on the home appliance

Kind of codeTemperature

The appliance has seen a temperature outside its range and is saying so, and on a maintenance visit the cause is usually outside the sealed system: a door left ajar or a gasket that no longer seals, a condenser coil furred with dust and pet hair, a grille blocked, or a unit squeezed into an alcove with no air around it. Close the door, check the gasket, give the coil air and time, and book coil cleaning; if it will not cool at all, that is a repair.

Usually leads toCondenser coil cleaning

Dust and pet hair brushed and vacuumed off the coil and fan of every cold storage unit in the house.

Shows up asAppliance Maintenance Code or Reminder Light: Filter, Descale, Vent Check

An appliance maintenance code is a reminder, icon or short code on a display asking for a filter change, descaling, a tub clean, rinse aid or an exhaust check rather than reporting a broken part.

MakeTrue Residential

True Residential units carry commercial-style cooling into the home, and their undercounter coils and heavy door gaskets need the same regular cleaning a restaurant unit gets.

SourceTrue Residential 15 & 24 Inch Service Manual

Documented on True Residential's 15 and 24-inch undercounter refrigeration and wine platform; the exact trigger temperature differs between a refrigerator zone and a wine-cabinet zone on the same control board.

Before you book,
in this order.

Each step comes from True Residential's own guidance for High Temperature Alarm on its home appliances. Follow it to the end: the last card says whether this is a visit.

01

Make sure the door is fully closed and the gasket is sealing all the way around.

02

Clear anything blocking the front grille where the unit draws air.

03

Vacuum the condenser coil if it has not been cleaned in the last six months — True's own manual ties dust build-up on the coil directly to warm running.

04

If the alarm is still active after the door, grille and coil are checked, book a visit rather than keep resetting the control.

Still there?

It usually turns into condenser coil cleaning. Book with the code and the model number.

What not to do

This is a sustained-temperature alarm, not a sensor problem. True documents a separate probe-failure condition for a genuinely broken temperature sensor, which behaves differently from a cabinet that is simply running warm.

What you may
notice with it.

The home appliance problems High Temperature Alarm tends to arrive with. Answer these at the home appliance before anyone is booked.

All problems

Before you call

Appliance Maintenance Code or Reminder Light: Filter, Descale, Vent Check

All 8 causes, cheapest first

It also comes with

Close view of the dark control panel of a built-in steam oven set into light kitchen cabinetry, one abstract droplet-shaped reminder icon glowing amber among unlit symbols, the stainless door blurred below, soft daylight. Problem

Appliance Maintenance Code or Reminder Light: Filter, Descale, Vent Check

8 causes, cheapest first

Where High Temperature Alarm usually leads

Condenser coil cleaning.

Condenser coil and fan cleaned on a refrigerator, freezer, wine or beverage unit or ice maker, drain pan checked · lowest.
Book a visit What the job involves

True Residential
home appliances.

True Residential units carry commercial-style cooling into the home, and their undercounter coils and heavy door gaskets need the same regular cleaning a restaurant unit gets.

True Residential home appliance maintenance

More True Residential codes

Door Ajar Alarm

Temperature on other makes

Gaggenau Continuous audible signal, door openHestan dALiebherr Door open alarmSub-Zero SERVICE flashing
All 6 codes of this kind
A tidy home kitchen with a tall built-in stainless column refrigerator and freezer pair set into light wood cabinetry, the toe grille at floor level removed and leaning against the cabinet, a technician seen only from the shoulders down kneeling on a gray mat and drawing a long soft coil brush out from under the unit, a small canister vacuum beside him, even daylight from a side window. True Residential builds this

Cold storage

Upkeep for everything in the house that keeps things cold: refrigerators, freezers, wine and beverage units and ice makers, cleaned and checked before they start struggling.

In True Residential's own words

High Temps (1 consecutive hour): 50°F - Refrigerator / 70°F - Wine Cabinet
True Residential 15 & 24 Inch Service Manual True Residential 15 & 24 Inch Service Manual True Residential 15 & 24 Inch Service Manual

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Documented on True Residential's 15 and 24-inch undercounter refrigeration and wine platform; the exact trigger temperature differs between a refrigerator zone and a wine-cabinet zone on the same control board.

True Residential High Temperature Alarm home appliance maintenance,
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 family sharing breakfast in a bright, well-kept home kitchen.
For the heart of your home.

Questions
about High Temperature Alarm.

Can I clear High Temperature Alarm myself?
Make sure the door is fully closed and the gasket is sealing all the way around. If it comes back, it needs a visit.
Why did my True unit take an hour to alarm after I noticed it felt warm?
True's control is built to ignore short-term warming from normal door use; it only raises the High Temperature Alarm once the zone has held its threshold temperature for a full consecutive hour.
Is a dirty condenser really enough to trigger a True High Temperature Alarm?
Yes — True's own service manual lists a dirty condenser coil among the checks for a unit that is not cold enough, and states plainly that warranty does not cover cleaning it, treating it as routine owner upkeep.
Does the alarm temperature differ between a True wine storage and a True unit?
Yes — True documents a lower threshold for a refrigerator zone (around 50°F) than for a wine cabinet zone (around 70°F), reflecting the different set points each is designed to hold.

Back to your everyday

Still showing High Temperature Alarm?

A booking goes further when it has the reminder or code as shown, the model number from the rating plate, and a word on when that filter, screen or tub was last cleaned. With those three, the office can pack the right filter or cleaner for your appliance.

Schedule maintenance Call (844) 879-5178
(844) 879-5178 Schedule maintenance