Thermo King APU ECM & Cabin Control Repair (TriPac)

Thermo King APU ECM & Cabin Control Repair (TriPac)

One of the very few U.S. specialists repairing TriPac Evolution APU ECMs, HMI cabin control displays, and Rev 1.6 controllers at component level. 1-year warranty, full bench testing, nationwide mail-in service.
3-7 Day Turnaround
Bench-Tested Quality
Expert Technicians
Thermo King TriPac Evolution APU Controller (ECM) — control board (APU computer), repair & remanufacturing service
3-7 business days

Thermo King TriPac Evolution APU Controller (ECM)

Thermo King TriPac Evolution APU controller repair service with component-level diagnostics, circuit repair, and bench testing to restore OEM performance.

Quality Assured
Expert Service
Part Number
Turnaround: 3-7 business days

Other Thermo King APU Controllers We Repair

Thermo King TriPac Evolution HMI Cab Controller — control board (APU computer), repair & remanufacturing service
3-7 business days

Thermo King TriPac Evolution HMI Cab Controller

Evolution HMI repair service for electronic-level failures, sensor issues, power-up faults, and communication errors. Includes comprehensive validation testing for reliable cab control.

Quality Assured
Expert Service
Part Number
Turnaround: 3-7 business days
Request This Repair
Thermo King TriPac APU Controller Rev 1.6 — control board (APU computer), repair & remanufacturing service
3-7 business days

Thermo King TriPac APU Controller Rev 1.6

TriPac Rev 1.6 controller repair and remanufacturing with diagnostics, component replacement, and functional validation testing.

Quality Assured
Expert Service
Part Number
Turnaround: 3-7 business days
Thermo King TriPac APU Controller — control board (APU computer), repair & remanufacturing service
3-7 business days

Thermo King TriPac APU Controller

Thermo King TriPac controller repair service with board-level diagnostics, component rework, and bench testing to restore dependable operation.

Quality Assured
Expert Service
Part Number
Turnaround: 3-7 business days

Transparent Pricing

No hidden fees. Pricing varies by model.

MOST POPULAR

Standard Repair

From $250

3-7 Days

Routine maintenance, "Check APU" alarms

Rush Service

+$150.00

24-48 Hrs

Urgent loads, perishable cargo

Diagnostic Only

$75.00

3-7 Days

Testing functionality (Waived if repaired)

Why Choose DCF Electronic?

Massive Savings

New OEM boards cost ~$1,900. We restore yours for a fraction of the cost. That's money in your pocket.

Plug & Play

We preserve your engine hours and firmware. No dealer programming required—install it and drive.

Better Than New

We replace failure-prone factory capacitors with extended-life upgraded components.


Thermo King TriPac Evolution APU Controller Repair

DCF Electronic provides specialized Thermo King TriPac Evolution APU controller repair for fleet owners and owner-operators across the US. If your Evolution controller is causing no-start conditions, intermittent shutdowns, communication faults, or power supply issues, we diagnose and repair the board at component level—so you can avoid expensive replacement. Every TriPac Evolution controller repair service includes incoming inspection, fault isolation, and corrective rework with quality components, followed by bench testing under load to confirm stable operation. Our technicians focus on restoring the Evolution ECM to OEM functionality and improving long-term reliability. Typical turnaround is 3–7 business days, and repairs are backed by a 1-year warranty. Submit a repair request today to get your Evolution APU controller diagnosed and receive a fast estimate before you ship. We also service other Thermo King TriPac versions and Evolution HMIs, plus related auxiliary power control electronics—without changing your existing harnesses or configurations when feasible.


Common TriPac Evolution Controller Failures
  • No-start / no power conditions
  • Intermittent shutdowns, resets, or erratic behavior
  • Power supply / voltage regulation faults
  • CAN communication errors and control signal failures
  • Corrosion, vibration damage, or heat-related component breakdown
Repair & Diagnostic Process
  1. Incoming inspection and symptom verification
  2. Board-level diagnostics to isolate failed circuits
  3. Component-level repair using quality replacements
  4. Connector and solder joint rework where needed
  5. Functional verification before final validation
Bench Testing & Validation
  • Bench test under load to confirm stable power and control outputs
  • Communication checks to verify reliable controller operation
  • Final QC to confirm OEM-level functionality
Repair Benefits vs Replacement
  • Reduce cost compared to new replacement modules
  • Avoid backorders and minimize fleet downtime
  • Restore OEM performance without unnecessary replacements
  • Confirm results with verified bench testing

Warranty & Turnaround Time

Typical turnaround is 3–7 business days. Repairs are backed by a 1-year warranty.


Frequently Asked Questions

Yes — 'board', 'computer', 'module' and 'controller' all name the same part: the APU's electronic control module (ECM). We repair Thermo King TriPac boards at component level, including the TriPac Evolution ECM, TriPac Rev 1.6, the standard TriPac controller, and the Evolution HMI display.

Just the board. Remove it from the plastic housing and ship only the board — do not send the plastic enclosure. This lowers your shipping cost and avoids damage in transit.

Inspect the rear side of the board for burn marks or visible PCB damage. Boards with burn marks have irreparable damage and cannot be serviced. If unsure, email photos of the rear of the board to support@dcfelectronic.com for a free pre-shipment assessment.

You pay to ship the unit to us; we cover standard ground return shipping (USPS/UPS/FedEx Ground) after repair. Overnight/expedited service or added return insurance is available at your request and cost.

We charge a small $75 diagnostic fee to cover the technician's time. You can choose to have it returned or we can scrap it for you (waiving the fee).

Yes! We repair it, but the client is responsible for the HMI plastic case.


Ready to Repair Your TriPac Evolution Controller?

Request a repair request for Thermo King TriPac Evolution APU controller repair. Component-level diagnostics, bench testing, 3–7 business day turnaround, and a 1-year warranty.

TriPac Troubleshooting Guides

Before shipping a controller or HMI, check the alarm codes, fuses and symptoms. These guides help you rule out external faults first.