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E198

E198 — Temperature fuse error

Samsung · Air Conditioning

What does E198 mean?

The temperature fuse in the terminal box has disconnected, indicating a potential overheating condition or electrical fault.

Common Causes

  • Terminal Box temperature rise fuse disconnected
  • Overheating in the terminal box
  • Wiring connector issue of the temperature fuse

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Power off the unit at the main circuit breaker immediately.

  2. 2

    Visually inspect the wiring connector of the temperature fuse for any looseness or damage.

  3. 3

    Contact a qualified technician to inspect the terminal box and replace the PCB if the fuse is disconnected.

Browse all codes in this manual (94)
Verified technical data. Last updated: April 2026

Related Faults

COND temperature sensor errorCondenser temperature sensor error — Outdoor coil temperature sensor faultCommunication errorCommunication error — Indoor/outdoor inverter main MICOM communication lostCommunication error after trackingCommunication error after finishing tracking — System communication issue following a tracking process
Source: Samsung Air Conditioning
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