Description
Fluke 1537 Insulation Tester Repair
The Fluke 1537 is a high-voltage insulation resistance tester that applies selectable DC test voltages and measures very high insulation resistance with diagnostic tests and logging, for motors, cables, and HV apparatus. The hardworking part is the high-voltage generator, so that’s where most faults originate.
FlukeMeterRepair.com repairs and calibrates the Fluke 1537 for motor-shop technicians, electrical maintenance crews, and cable-testing contractors.
Common Fluke 1537 problems we fix
- HV generator recalibration — won’t reach the selected test voltage or output is low, repaired and recalibrated.
- Measurement-circuit repair — insulation-resistance readings drifting, repaired and recalibrated against standards.
- Guard / lead faults — the guard terminal or leads degrading high-resistance readings, repaired.
- Display, terminal, or battery faults — repaired.
- Won’t power on — power faults.
FAQs
My 1537 won’t reach test voltage — fixable? Yes. HV generator faults are the usual cause and they’re repairable, then verified so the tester delivers full rated voltage and your readings are valid, with a NIST-traceable certificate.
Is the measurement verified? Yes — test voltage and resistance are checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.





Reviews
There are no reviews yet.