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Our Services

Furnace Diagnostics, Repairs & Optimization

Electrical Fault Diagnosis

Pinpointing furnace panel, element bank, and 3-phase supply issues to restore safe, stable operation.

Thermocouple & Sensor Testing

Detecting open circuits, drift, and polarity errors to ensure accurate temperature readings and control.

Heater Resistance & Insulation Checks

Verifying element integrity and insulation health to prevent breakdowns and maintain thermal efficiency.

Heating Element Failure Diagnostics

Identifying resistance drift, cold-end degradation, and overloads to reduce downtime and extend element life.

Controller & Thyristor Fault Isolation

Calibrating setpoints and testing power output to resolve PID controller and thyristor malfunctions.

Furnace Underheating Analysis

Calculating power shortfalls and applying scalable fixes like load balancing, wiring upgrades, or element resizing.

Overtemperature System Testing

Testing and resetting safety systems to prevent overheating and protect furnace components from damage.

Cable & Relay Repairs

Replacing burnt cables, testing relays, and rewiring to restore safe, reliable furnace performance.

Earth Leakage & Short Circuit Tracing

Locating faults and grounding issues to prevent electrical hazards and ensure system compliance.

Earth leakage and short circuit tracing

Resolving unstable power phases and runaway heating to maintain consistent furnace control and safety.

  • Affordable soulutions
  • Precision furnace solutions
  • Decades of hands-on industry experience
  • High thermal efficiency
  • Interchangeable with OEM brands
  • Long lifespan when sized correctly

Ready to Upgrade Your Heat Game?

Call us now for expert advice, rapid delivery, and unbeatable deals on premium heating elements. Your next solution is just one call away—don’t wait for the downtime.

084 303 5012 sales@furntek.co.za

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