Error code reference

Samsung Heat Pump Error Code E422

Oil valve (equal oil valve) 1 self diagnosis error

Oil valve (equal oil valve) 1 self diagnosis error - open or close error, sensor breakaway or defect.

First step from the service manual

Check if oil valve 1 temperature sensor is separated; if not, verify temperature measuring value via S-net/view mode.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for E422.

Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
Verified part numbers when replacement is required

Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

M+

M+ Max·Samsung Heat Pump

E422 on my Samsung Heat Pump

M+

Oil valve (equal oil valve) 1 self diagnosis

From Service Manual 323179, p.31:

1.Check if oil valve 1 temperature sensor is separated; if not, verify temperature measuring value via S-net/view mode.

2.Disconnect the sensor and measure resistance at the sensor body. Expected: 10 kΩ to 12 kΩ at 77°F (25°C).

3.Check the sensor harness for opens and shorts. Back-probe the sensor pins at the control board connector; a reading outside 5 kΩ to 50 kΩ indicates a failed sensor.

Part DA32-10105R

Temperature sensor

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

First step from the service manual

Get the full diagnostic procedure for E422.

Related Samsung heat pump codes