Status: Megger insulation tester repair covers the full line — the current MIT515/525/1025/1525 and S1 ranges plus the legacy BM and MJ series still in active service. We repair and calibrate all of them.
Megger is the original name in insulation resistance testing — the word “Megger” is shorthand for the test itself. We service that entire heritage, from today’s diagnostic high-voltage instruments back to the hand-crank megohmmeters that have run for decades.
Common Megger Insulation Tester Problems We Fix
- Won’t reach test voltage or output is low — high-voltage generator circuit failure from sustained or overloaded testing
- Readings jump, drift, or won’t settle — measurement circuit degradation
- Guard terminal not working — circuit damage from incorrect lead connections
- Display dim, blank, or unreadable — LCD or backlight failure
- Voltage range selector intermittent — rotary switch contact wear
- Won’t charge or hold a charge — battery charging circuit failure
- Won’t download results — USB or Bluetooth module failure
- Lead jacks loose or intermittent — connector wear from field use
Don’t see your exact problem? We repair all Megger insulation tester faults — email us and describe what’s happening.
Megger Insulation Tester Models We Repair
| Model | Description | Service |
|---|---|---|
| Megger MIT1525 | 15 kV insulation tester, PI/DAR/DD diagnostics | Request Repair |
| Megger MIT1025 | 10 kV insulation tester, PI/DAR diagnostics | Request Repair |
| Megger MIT1020/2 | 10 kV insulation tester | Request Repair |
| Megger MIT1020 | 10 kV insulation tester | Request Repair |
| Megger MIT525 | 5 kV insulation tester, PI/DAR/DD | Request Repair |
| Megger MIT520/2 | 5 kV insulation tester | Request Repair |
| Megger MIT520 | 5 kV insulation tester | Request Repair |
| Megger MIT515 | 5 kV insulation tester | Request Repair |
| Megger MIT510 | 5 kV insulation tester | Request Repair |
| Megger MIT30 | Compact insulation tester | Request Repair |
| Megger S1-1568 | 15 kV, 30 TΩ diagnostic insulation tester | Request Repair |
| Megger S1-1054/2 | 10 kV diagnostic insulation tester | Request Repair |
| Megger S1-1052/2 | 10 kV insulation tester | Request Repair |
| Megger S1-1068 | 10 kV insulation tester | Request Repair |
| Megger S1-568 | 5 kV diagnostic insulation tester | Request Repair |
| Megger S1-554/2 | 5 kV insulation tester | Request Repair |
| Megger S1-552/2 | 5 kV insulation tester | Request Repair |
| Megger BM5200 | 5 kV insulation tester (legacy) | Request Repair |
| Megger BM25 | 5 kV insulation tester (legacy) | Request Repair |
| Megger BM21 | 1 kV insulation tester (legacy) | Request Repair |
| Megger BM15 | 1 kV insulation tester (legacy) | Request Repair |
| Megger BM11D | 1 kV insulation tester (legacy) | Request Repair |
| Megger MJ459 | Hand-crank insulation tester (legacy) | Request Repair |
| Megger MJ359 | Hand-crank insulation tester (legacy) | Request Repair |
| Megger MJ159 | Hand-crank insulation tester (legacy) | Request Repair |
| Megger MJ15 | Hand-crank insulation tester (legacy) | Request Repair |
How to Send In Your Megger Insulation Tester
- Tell us what’s wrong. Email us or submit a service request with your model and the problem.
- Ship it to us. Send your instrument from anywhere in the US — we provide prepaid shipping labels on request.
- Get a firm quote. We evaluate it and send a no-obligation repair quote. No work is done until you approve.
Email: info@junecompany.com | All repairs include NIST-traceable calibration and a 90-day parts-and-labor warranty.
Frequently Asked Questions
How much does Megger insulation tester repair cost?
Repairs start with a flat evaluation fee that’s credited toward your repair cost. After we diagnose the instrument, you get a firm quote before any work begins — no surprises.
How long does the repair take?
Most Megger insulation tester repairs are finished within 5–10 business days of arrival, with expedited turnaround available if you need it back fast.
My Megger won’t reach its rated test voltage — can you fix it?
Yes. High-voltage generator failures that keep the unit from reaching 5, 10, or 15 kV are one of the most common faults we see, and they’re repairable, then verified against our reference standards so the tester hits full rated voltage again.
My readings drift or won’t settle — is that repairable?
Yes. Measurement-circuit degradation that causes erratic or unstable insulation-resistance readings is repairable and recalibrated, so results are accurate and repeatable again.
My PI, DAR, or DD test isn’t working right — can you fix the diagnostics?
Yes. We repair and verify the full diagnostic suite — Polarization Index, Dielectric Absorption Ratio, Dielectric Discharge, and step-voltage — on the MIT and S1 ranges, so timed and diagnostic tests run and calculate correctly.
My readings are out of spec — can you recalibrate and certify it?
Yes. Every repair includes recalibration against our reference standards, and the instrument comes back with a NIST-traceable calibration certificate documenting measured performance.
Do you repair the old BM and MJ Meggers, including the hand-crank ones?
Yes. The legacy BM series and the hand-crank MJ megohmmeters are still very much serviceable. These are rugged instruments, and we keep them in service rather than forcing a replacement.
What if my exact model isn’t listed?
We service the full Megger insulation-tester line — MIT500, MIT1000/1500, S1, BM, and MJ. If your model isn’t in the table, pick the closest match or email us — the process is the same. We also service the wider Megger high-voltage range, including dielectric test set and hipot repair, transformer test equipment repair, and VLF cable test system repair.
Who uses Megger insulation testers?
Utility high-voltage maintenance crews, industrial electricians, motor and generator shops, cable-testing contractors, and electrical testing laboratories rely on Megger insulation resistance testers to find insulation breakdown before it causes a failure. For full manufacturer specifications, see Megger’s Advanced MIT insulation resistance testers page.
