TT:120 Locomotive Inspection & Diagnostic Service

Is your TT:120 loco a non-runner, running intermittently, or showing signs of a mechanical or electrical fault? Our inspection and diagnostic service is the best place to start.

We'll carefully inspect your locomotive, investigate the symptoms and carry out appropriate checks to identify the likely cause. Once we've assessed it, we'll explain what we've found and discuss any recommended repairs before additional work is carried out.

Simply add this service to your cart, securely package your loco, and send it in. We'll take care of the assessment.

What this service is for

• Non-running locomotives
• Intermittent or poor running
• Electrical or wiring faults
• Gear or drivetrain issues
• DCC / decoder faults

What’s included

• Initial test and assessment
• Careful strip-down (where required)
• Fault finding and diagnosis
• Clear report of findings
• Repair quote (no obligation)

How it works

1. Book your inspection
Add this service to your cart and complete checkout.

2. Send your loco
Securely package your locomotive and send it to us.

3. Inspection & fault finding
We carry out a full diagnostic to identify the issue.

4. Report & quote
We’ll contact you with our findings and recommended repair options.

5. Repair (if approved)
If you’re happy to proceed, we’ll complete the repair and fully test the loco before return.

Important Information

This service covers inspection and fault finding only.
Any repair work is quoted separately and only carried out with your approval.

Most minor repairs (such as wiring fixes or simple adjustments) are usually straightforward and low cost, while more complex issues will vary depending on the fault.

Just need routine maintenance?
If your loco is running and simply needs cleaning, lubrication and a pickup check, our TT:120 Standard Service

Get your TT:120 locomotive properly assessed – book your diagnostic today.