Samsung Gen 6 fault 102

Indoor unit/outdoor unit communication time-out error: errors in more than 6 packets

Heat pump

What it means

Communication timeout between indoor and outdoor units due to repeated packet errors (more than 6 packets).

Likely causes

  1. Faulty outdoor communication cable connection
  2. Incorrect DC output voltage at communication terminal

Where to start

  1. Check the outdoor communication cable connection
  2. Check DC output voltage and the communication terminal

The full answer, free

  • How to put it right, step by step
  • The manual page for this fault (page 52), right under the answer

Safety: Isolate the outdoor unit and any backup heater, and give the inverter capacitors time to discharge before you open the electrics. Anything on the refrigerant circuit needs F-gas certification.

From the Samsung manual for the Gen 6. Check the model on the data plate before you order parts.

Other Samsung Gen 6 fault codes