Megger BM21 Insulation Tester Repair

$245.00 evaluation fee

🛡️ 90-Day Warranty ✓ Fee Credited to Repair ⚡ No Forms Needed

June Company provides expert Megger BM21 repair and calibration. We address display issues and other common insulation tester faults.

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📋 How It Works

Submit Request – Pay evaluation fee & provide equipment details
Ship to Us – Send your equipment to our Oregon facility
We Evaluate – Detailed diagnosis & repair estimate
Fee Credited – Your evaluation fee applies to repair cost
We Repair – Professional repair with 90-day warranty

🔧 Fast Turnaround: Most repairs are completed within 1–3 business days.
📏 Precision Calibration: NIST-traceable calibrations included for most repairs.
🛡️ Warranty: 90-day warranty on all repairs.
📝 Transparency: Detailed evaluation and repair estimate before work begins.

✓ Evaluation Fee Credited Toward Repair

This evaluation fee is applied as credit toward your final repair cost. After we evaluate your equipment, you'll receive a detailed estimate before any repair work begins.

Description

Megger BM21 Insulation Tester Repair

The Megger BM21 is a high-voltage insulation resistance tester — a rugged 5 kV-class megohmmeter for testing cable, switchgear, and machine insulation, long used across utilities and industry. As HV test equipment, its faults concentrate in the high-voltage generator, the measurement circuitry, and the display.

June Company repairs and calibrates the Megger BM21 for utility and industrial maintenance crews.

Common Megger BM21 problems we fix

Display issues — a blank, dim, or unreadable display, a common BM21 complaint, repaired.
Won’t reach test voltage — HV generator degradation, repaired so it delivers full rated voltage.
Readings drift or won’t settle — measurement-circuit drift, recalibrated against standards.
Guard terminal faults — guard-circuit damage, repaired.
Won’t power up or charge — power/battery faults.

FAQs

My BM21 display is failing — worth fixing? Yes. Display repair is routine, and we recalibrate the tester while it’s here so its HV output and readings are verified, with a NIST-traceable certificate.

Is the HV output verified? Yes — test voltage and insulation-resistance accuracy are checked against our standards.

Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.

Related Megger repairs

We service 186 Megger instruments. See all Insulation Tester Repair.

Brand

Megger Repair

Megger Group Limited is a company known for manufacturing electrical test equipment and measuring instruments. They provide a wide range of products designed for testing, diagnosing, and maintaining electrical assets and systems. Some of their key products and their functionalities include:

Insulation Resistance Testers: Used to measure the insulation resistance of electrical equipment and components to ensure they can safely withstand normal operating voltages.
Low Resistance Ohmmeters: Instruments designed to measure very low resistances in electrical connections, cables, and conductors, helping to identify and troubleshoot high-resistance joints or faults.
Transformer Test Equipment: Includes testers for assessing the condition of transformers through various tests such as turns ratio, winding resistance, insulation resistance, and transformer oil testing.
Cable Fault Locators: Devices used to locate faults and defects in underground cables, helping to pinpoint the exact location of faults without the need for extensive excavation.
Ground Resistance Testers: Instruments used to measure the resistance of grounding systems to ensure electrical safety and compliance with standards.
Power Quality Analyzers: Instruments that monitor and analyze various aspects of electrical power quality, including voltage fluctuations, harmonics, power factor, and waveform distortions.
Portable Appliance Testers (PAT Testers): Used for testing the electrical safety of portable appliances and equipment to ensure they comply with safety regulations and standards.
Circuit Breaker Analyzers: Devices designed to test and analyze the performance of circuit breakers, including timing, operation sequence, and contact resistance.

Megger products cater to a wide range of industries including power generation, transmission, distribution, telecommunications, manufacturing, and electrical contracting. They are essential tools for electrical engineers, technicians, and maintenance professionals to ensure the reliability, safety, and efficiency of electrical systems and equipment.

Shipping & Returns

Packing your equipment. You are responsible for packaging equipment adequately for transit. We strongly recommend the original manufacturer’s case, or double-boxing with at least two inches of shock-absorbing material on all six sides. We return your equipment in the packaging it arrived in, so please send it in packaging that will survive the return trip as well. If your packaging is damaged or inadequate for the return, we will substitute suitable packaging and may charge the cost of materials.

Insurance. Equipment is not insured by June Company while in transit. We strongly recommend insuring your shipment for its full replacement value.

Risk of loss. Risk of loss remains with you until your equipment is received at our facility, and transfers back to you when your repaired unit is delivered to the carrier (F.O.B. shipping point). June Company is not responsible for equipment lost, delayed, misdelivered, or damaged in transit, in either direction.

Return label. A prepaid and preprinted return shipping label should be included with your shipment. If one is not included, we will provide one.

Transit damage. Damage occurring in transit is the responsibility of the carrier. It is not a warranty defect and is not covered by the 90-day repair warranty. Any claim must be filed by you with the carrier; we will supply photographs and documentation to support it at no charge.

Full details: Terms & Conditions, Section 6 · Return Policy