Description
Fluke 1550C Insulation Tester Repair
Insulation testers have a failure mode worth taking seriously: they can under-deliver test voltage and still return a perfectly believable resistance number. FlukeMeterRepair.com works on Fluke instruments and nothing else, which means the Fluke 1550C Insulation Tester is not an unfamiliar model to us.
Symptoms we see on the Fluke 1550C Insulation Tester
- The circuit is not discharged after a test.
- Leads or clamps give inconsistent contact.
- It will not power on or hold charge.
- Results look plausible but you no longer trust them – worth testing the actual output voltage, which the reading cannot tell you.
- High-range readings have drifted – the top of the range goes first, where the currents are smallest.
- It will not reach its nominal test voltage.
What the repair involves
The generated test voltage is measured directly at each nominal setting, separately from the resistance measurement. Those are two different circuits and they drift independently. Everything is repaired at component level rather than by swapping assemblies, and the measured results come back with the instrument.
Before you ship it
Send the test leads. Lead condition affects high-range readings more than most owners expect, and we cannot separate lead faults from instrument faults without them.
Evaluation is free and you get a firm quote before any work starts. Every repair carries a 90-day parts-and-labor warranty. Email us or use the repair request form.
Ted White –
Our Fluke insulation tester completely died, and I mean died. We could not charge the tester and when we did it smoked. We assumed either the battery, electronics boards, or power supply.