Mail-in Electronic Repair for Repair Shops & Fleets
Specialists in Thermo King TriPac Evolution ECM and HMI repair. Send your modules to DCF Electronic for evaluation, repair and testing.
Thermo King APU ECM & Cabin Control Repair
Our most specialized service — component-level repair of TriPac Evolution APU ECMs, HMI cabin control displays, and Rev 1.6 controllers, offered by only a handful of shops in the U.S. Save hundreds versus dealer module replacement, backed by a 1-year warranty and full bench testing before return shipment.
Explore APU ECM RepairFor fleets and service centers
- Pre-authorized repairs up to the agreed limit per module; above it, we ask for your authorization before continuing.
- Your PO, unit, branch and serial number on every piece.
- Invoice per repair, monthly statement and optional Net 30 credit, subject to approval.
Our Services
DCF Electronic (DCFelectronic, at dcfelectronic.com) provides nationwide mail-in repair of Thermo King and Carrier electronic controllers.
Find your exact model
Model-specific repair pages — each with symptoms, pricing and FAQs:
Component-Level Repair Process
Incoming Inspection
Visual examination, part number verification, serial number documentation, and initial symptom assessment
Part number and serial number verification
Visual inspection for physical damage, corrosion, or missing components
Board-Level Diagnostics
Oscilloscope analysis, multimeter testing, thermal imaging, and circuit tracing to isolate failed components
Oscilloscope analysis of power supply rails and control signals
Multimeter testing for voltage regulation and component continuity
Component Replacement & BGA Rework
Precision soldering and advanced BGA (Ball Grid Array) rework for complex ICs, plus quality replacement of capacitors and MOSFETs
Advanced BGA rework and chip replacement using precision hot-air stations
Removal of failed components (capacitors, MOSFETs, voltage regulators)
Bench Testing Protocol
Load simulation, communication verification, and functional validation under real-world operating conditions
Power-on test: Verify voltage rails, current draw, and startup sequence
Load simulation: Test under simulated operating conditions
Final QC Gates
Visual inspection, functional validation, and 24-hour burn-in test to ensure long-term reliability
Visual inspection: Solder joints, component placement, board cleanliness
Functional validation: Re-test all control functions and communication
Every controller goes through our rigorous 5-step process with bench testing, load simulation, and 24-hour burn-in validation. We don't just fix symptoms—we diagnose root causes and restore OEM performance.
3-Point QA Gates
Visual Inspection
Solder joint quality and integrity
Component placement and orientation
Board cleanliness and contamination
Electrical Testing
Power supply voltage rails (±5%)
Current draw under load conditions
Ground continuity and isolation
Functional Validation
CAN bus communication verification
Control output signal validation
Sensor input response testing
Our 3-point QA process ensures every controller meets OEM specifications. We don't ship until it passes visual inspection, electrical testing, and functional validation—including a 24-hour burn-in test.
Why Choose Us
Expert Technicians
Specialist technicians with 20+ years of hands-on experience
Clear Turnaround Times
7–15 business days standard, with rush service available
Competitive Pricing
Fair and transparent pricing structure
Warranty Included
Guaranteed fully functional on delivery, plus a 1-year warranty on the repair we performed
Component-Level Diagnostics
Multi-Point Quality Control
OEM-Spec Bench Testing
1-Year Workmanship Warranty
Frequently Asked Questions
How long does a typical control board repair take?
Our standard repair turnaround time is 7–15 business days from the moment we receive your controller at our facility.
Do you offer a warranty on your remanufactured controllers?
Yes. Every controller is bench-tested and guaranteed fully functional when it arrives back to you. The 1-year limited warranty covers the repair we performed — the specific fault corrected and all components we replaced.
Which brands of controllers do you repair?
We specialize in remanufacturing Thermo King and Carrier Transicold controllers, including APUs, Container Refrigeration, and Trailer systems.
Where are you located? Can I drop off my controller?
We are based in Miami, Florida, and serve the entire U.S. as a specialized mail-in repair lab. We don't take walk-ins — every controller arrives by mail at our secure Miami receiving address and is repaired at our bench facility. You ship it, we diagnose it, you approve the quote, and your controller returns to you fully tested, with tracking and a 1-year warranty.