HEX: 94 - Temperature sensor interruption (internal, external)

Fault Details:

Temperature sensor interrupted or short circuit to supply voltage UB.

Recommended Solution:

Electrical check of external/internal temperature sensor. Make sure it is away from vehicle outlets, direct sun or any other cold/ hot source that could impact performance of the heater and give bad readings.

Note, different models and controllers might have different fault code meanings. If you're not sure, you can contact Heatso directly.