Model reference

Samsung MH18AP1(P2)-09

Name: Samsung MH18AP1(P2)-09
Brand: Samsung

Air Conditioner

1 document4 error codes3 service modes

Available documentation

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E1 on my Samsung MH18AP1(P2)-09

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Indoor unit room temperature sensor

From Service Manual 495421, p.33:

1.Access service mode to confirm the active fault code and read stored error history.

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

3.Check the sensor harness for opens. A reading outside 5 kΩ to 50 kΩ indicates a failed sensor.

Part DA32-10105R

Temperature sensor

CodeMeaning

Compulsory Operation (Emergency Operation without Remote)["Press the compulsory operation button on the indoor unit.","The air conditioner starts in the…
Option Setup Mode["Remove batteries from remote control.","Press the temperature UP and DOWN buttons simultaneously…
Test Operation Mode (Outdoor Unit)["Apply power to the outdoor unit.","Press PCB switch S/W-A once to test unit A (or S/W-B for unit…

Full entry steps, exit procedures, and test sequences are available in Max.

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