Compressor Discharge Temperature Too High
What it means
This code appears on Samsung inverter split wall units such as WindFree and Digital Inverter. It means the discharge sensor recorded a temperature on the compressor outlet pipe above the safe limit, so the unit stopped the compressor to protect it. The most common cause is low refrigerant or poor refrigerant flow, and repeated episodes shorten compressor life. The same code can mean something else on other brands.
Models covered: Samsung inverter split air conditioners (e.g. WindFree and Digital Inverter wall units) that show three-digit E codes on the display.
Symptoms4
- Cooling fades gradually, then E416 shows and the compressor stops.
- The pipes at the outdoor unit are not as cold as usual.
- The code repeats in the hottest hours.
- Frost may form on the small pipe or a service valve.
Possible causes5
- Low refrigerant from a leak at joints or coils.
- Blocked or faulty electronic expansion valve, or a blocked strainer.
- Dirty condenser or weak outdoor fan in extreme heat.
- Kinked or crushed connecting pipes.
- Inaccurate discharge sensor reading, or the sensor out of place.
How to diagnose5
- Switch off the breaker and let the compressor cool for at least half an hour; clear around the outdoor unit.
- Look at the joints under the indoor unit and at the outdoor unit for oil spots.
- A technician measures pressures and pipe temperatures against Samsung specification.
- If the charge is low, locate the leak with a detector, soap bubbles or a nitrogen pressure test.
- Check the electronic expansion valve and its coil, and measure and check the mounting of the discharge sensor.
How to fix6
- Wash the condenser and fix a weak outdoor fan.
- Refit the discharge sensor, or replace it if it reads wrongly.
- Repair the leak, then evacuate and recharge by weight to the nameplate (licensed technician only).
- Replace the electronic expansion valve, its coil or a blocked strainer.
- Repair kinked pipes.
- Run the unit for a long period in the heat and confirm stable discharge temperature with no code.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The low end is a wash or sensor fix, the most common case is a leak repair with recharge, and the top includes an electronic expansion valve.
Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026
Frequently asked questions
Does E416 always mean low refrigerant?
It is the most common cause, but a blocked expansion valve, a dirty condenser or a loose sensor can also set it, so pressures are measured before any refill.
Is a gas top-up enough?
No. Low refrigerant means a leak that a licensed technician must find and repair; then the system is evacuated and charged by weight, or the code returns and the compressor suffers.
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This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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