True Residential Refrigerator Repair

True Residential refrigerator repair in Denver: undercounter refrigerators, freezers, beverage centers, wine cabinets, full-size columns and TUI clear ice machines. The Appliance Team repairs True Residential refrigeration across Denver and 30 surrounding cities. True units are built by True Manufacturing, a company that made its name in commercial refrigeration, and they are serviced like the heavy-duty machines they are: fans, probes, controllers, inverter boards and sealed systems. Our technicians are EPA 608 certified for refrigerant and sealed-system work. The $99 service call is waived when you proceed with the repair, you get a written quote before any work starts, and every repair carries a 90-day warranty on parts and labor.

4.9★ on Google · $99 service call waived with the repair · Written quote before any work · 90-day warranty on parts and labor · EPA 608 certified technicians · Same-day or next-day visits

On this page: Common repairs · Real repair cases · Alarm messages · Quick checks · Colorado notes · Maintenance · Repair or replace · Cities we serve

True refrigeration is a regular part of our work. Our technicians, with more than 30 years of combined experience and over 10,000 appliance repairs behind the company, service True Residential units in homes and True commercial reach-ins, prep coolers and freezers in restaurants, offices and garages across the Denver metro. Because both lines come from the same manufacturer and share the same approach to condensers, fans, gaskets and hinges, the experience carries over directly.

True Residential products and series we repair

True model numbers are easy to read once you know the pattern. In TWC-24DZ-L-SG-B, TWC means True Wine Cabinet, 24 is the width in inches, DZ is dual zone, L is a left hinge (handle on the right), SG is a stainless glass door (SS is solid stainless) and the final letter is the design version.

Most common True Residential repairs

This list follows True’s service manual and the repair items in True’s 2025 residential warranty claim guidelines.

Condenser airflow is the root of most True service calls

True undercounter units breathe through a front-access condenser behind the kickplate or rainshield. Under a counter, lint, pet hair and dust collect there fast. When the coil clogs, head pressure rises, the compressor runs longer, the inverter heats up, and the control eventually posts a High Temperature Alarm or, after 15 hours of failing to reach set point, a Refrigeration Error. A clogged coil can also push the inverter into temperature protection (1 flash, power limited above 203°F). True says to clean the coil regularly, and coil cleaning is not covered by warranty. We clean it on every True call and then confirm the fans and sealed system are healthy.

Variable-speed compressor and inverter board

Many True Residential units use a variable-speed compressor driven by an inverter (VCC) board. The board reports its own health with an LED: one flash every 15 seconds is normal. Two flashes means it lost the thermostat signal from the control, so we check for about 120 VAC on the purple signal wire before blaming the inverter. Three flashes is an inverter hardware fault. Four flashes points at the compressor: overload, start failure, rotor position failure or inverter overheating. Before replacing anything, we ohm-test the compressor for an open winding or a short to ground and compare the three winding output voltages. Matching voltages with a dead compressor means a compressor job; mismatched voltages point to the board. Getting this right matters, since True’s own guidelines allow 5–6 hours of labor for a compressor replacement.

Controller replacement needs the model-select code

The electronic controller sits in the interior ceiling on most undercounter models, behind the rear back cover on TUF freezers, and in the center mullion ceiling on dual-zone models. A replacement controller must be set to the correct model-select code (001, 002, 101, 102, 105, 200 or 300) or the unit will run the wrong temperature and defrost logic. Dual-zone and freezer units drop into a safe mode when a probe fails (10 minutes off with only the evaporator fan, then 10 minutes fan plus compressor), so a wine cabinet that cycles oddly is often running on a failed probe.

What we actually find on True calls

Most of the True units we have repaired since 2024 were commercial reach-ins, prep coolers and freezers, and their failures match what we see on True Residential: dirty condensers, fan motors, door gaskets and hinges, thermostats and, less often, sealed-system problems.

1. Dirty condensers and fan motors

In March 2024 a True refrigerator stopped working because of a failed fan and a dust-packed condenser; we replaced the fan, cleaned the condenser and replaced a door gasket. In November 2025 a True freezer was noisy when its door closed and needed a new fan motor. In December 2025 a noisy, leaking two-door True needed a new condenser fan motor, and in March 2026 a garage freezer with a dead fan was not cooling until we replaced its condenser fan motor.

2. Doors, gaskets and thermostats

In July 2024 a True commercial refrigerator was not cooling; it needed a new thermostat and a door gasket. In December 2024 a True door would not close, and a new door hinge fixed it. A torn gasket or a door that does not close lets warm air in all day, which is why we check both on every True call.

3. Sealed-system problems

In April 2025 we diagnosed three commercial refrigerators in one visit: one had a failed compressor and another was low on refrigerant and needed a True evaporator. Our technicians are EPA 608 certified for this refrigerant work.

True refrigerator or freezer not holding temperature? Call 720-230-1229. We answer 24/7 and can usually be there the same or next day.

From our True service log

• March 2024, refrigerator not working. A new fan, a condenser cleaning and a door gasket.
• July 2024, not cooling. A new thermostat and door gasket.
• December 2024, door not closing. A new door hinge.
• April 2025, two units not cooling. A failed compressor on one; low refrigerant and an evaporator on the other.
• November 2025, freezer noisy when the door closes. A new fan motor.
• December 2025, noisy and leaking. A new condenser fan motor.
• March 2026, freezer not cooling, fan not working. A new condenser fan motor.

True Residential alarm messages and what they mean

True Residential does not use short codes like “E1”. The controls show plain-text alarm messages on the display, and the inverter board signals with LED flash patterns. The messages differ between the 15″/24″ undercounter controller, the TR-30/36 column control and the two generations of TUI ice machine, so the tables below are grouped by product. Most alarms reset by interrupting power once the cause is fixed; on the TUI-D ice machine, pressing POWER twice clears the alarm history. Write down the exact message, your model number and any LED flash count before you call. It helps us bring the right part on the first visit.

15″ and 24″ undercounter alarms (TUR, TUF, TBC, TWC)

Variable-speed inverter board LED flash codes

TR-30 / TR-36 full-size column messages

TUI-15 clear ice machine: D-version alarms

The newer TUI-15-D platform shows some alarms as icons only, so the exact on-screen wording can vary. These are the alarms True documents for the D control.

TUI-15 clear ice machine: older B/C control

Normal status displays on the older control include OFF, HAr (harvest), ICE, FILL, FUL (bin full), Add (add cleaner), CLn (clean) and LSC/HSC (low- or high-scale water setting). On the D version, dES, bth, Str, Stb, PrE, CLn and SAn are cleaning prompts, not faults.

Before you call: safe checks

• Reset the power. Turn off the breaker for 30 seconds and back on. Many True alarms, including Refrigeration Error, reset this way. If the alarm returns, the fault is real.
• Look at the condenser grille. With the unit unplugged, open the kickplate or rainshield and vacuum loose lint from the front. Brush with the fins, never across them. Do not use a hose or pressure washer.
• Check the door. Make sure nothing blocks the door or drawer and the gasket seals all the way around. Door Ajar alarms trigger at 7 minutes on undercounter units and 5 minutes on columns.
• Ice machine water. On a TUI-15, confirm the water supply valve is open and the filter is installed and seated. The unit will not make ice without a filter.
• Ice machine drain. Look for a kinked or crushed drain line behind or under the unit if you see a drain error.
• Check the plug. True units must be plugged straight into the outlet. Extension cords and adapter plugs cause problems and void the warranty.

Do not open the sealed system, remove the inverter cover or work on live wiring. Those repairs need a technician.

Denver and Colorado notes for True Residential

True does not publish any altitude-specific guidance for its residential refrigeration, and refrigerators are not affected by altitude the way gas cooking is. The Colorado issues we see with True are about temperature and water:

• Cold garages and outdoor kitchens. The TUI ice machine alarms when the condenser discharge air falls to 50°F (Ambient too Cold). A TUI in an unheated garage, basement bar or outdoor kitchen in a Denver winter must be winterized if the space can drop below 32°F. Freeze damage is excluded from True’s warranty.
• Hot, tight installs. Ambient too Hot trips at 155°F at the condenser discharge. Undercounter units in tight cabinetry or next to a grill need clear airflow at the front grille.
• Water and scale. Much of the Denver area has moderately hard water. On the TUI, use the HSC (high-scale) setting and replace the filter every 6 months instead of 12. Cubes that are not fully formed usually mean it is time to descale and change the filter.

Find your True Residential model and serial number

True’s parts lookup works by serial number, so a clear photo of the tag is the most useful thing you can send us.

True Residential maintenance schedule

Factory warranty vs. our repair warranty

We repair True appliances in or out of warranty, and the choice of who does the work is yours. Some owners call us during the warranty period because they want a faster appointment or a technician who works on True every day. If you prefer to file a claim with True, keep your proof of purchase handy; if you want us to fix it, you get a written quote before any work starts. Every repair we do carries our 90-day warranty on parts and labor.

Every repair we do carries our 90-day warranty on parts and labor. We use genuine True OEM parts whenever available. Because True shares many components with its commercial line, parts are generally obtainable, and we tell you up front when a part has to be ordered.

Still having trouble with your True Residential? Call 720-230-1229. We answer 24/7 and can usually be there the same or next day.

Repair or replace your True Residential?

True builds its residential units with long coverage on the sealed system: 6 years parts and labor, and parts coverage out to year 12 on registered refrigeration units. That tells you how long True expects the cabinet and sealed system to last. Most failures we see are fans, probes, controllers, LED drivers, gaskets and ice machine valves and pumps. These are the repairs worth doing on almost any True unit, because a new built-in True unit costs many thousands of dollars and is sized to fit your cabinetry.

The harder call is a compressor or sealed-system failure out of warranty. That is a long job (True’s own guidelines allow 5–6 hours for a compressor and 6 hours for an evaporator) and needs EPA 608 certified work. If the unit is still in the years 7–12 parts-only window, the part may be covered and only labor is billed. We will give you a written quote and tell you plainly when a repair is not worth it.

True Residential repair near you

We repair True Residential appliances in Denver and every city we serve across the metro, with same-day or next-day visits. Tap your city to see local service details:

True is a commercial refrigeration brand first, and we also repair True commercial units: reach-ins, undercounters and bar refrigeration in restaurants and businesses. See our commercial refrigerator repair page. For other home refrigeration, see refrigerator repair, freezer repair and ice maker repair. We also service Sub-Zero and Fisher & Paykel refrigeration.