Abnormally High Discharge Temperature / Refrigerant or THOD Sensor Fault

What does E36 mean?

The compressor discharge temperature is abnormally high, possibly due to insufficient refrigerant charge or a defective compressor discharge temperature sensor (THOD). High discharge temperatures can lead to compressor damage.

1. 1

   Measure the resistance of the THOD sensor at its leads — compare to a resistance-temperature chart if available.

2. 2

   Measure discharge pressure and temperature at the compressor outlet using manifold gauges and a temperature probe.

3. 3

   Perform a leak detection test and verify refrigerant charge level — recover, evacuate, and recharge if low.

4. 4

   Inspect the THOD sensor's connector on the outdoor unit PCB for secure seating and damage.