Sanyo STK-RCS-7TWSUA service manual Self-Diagnostics

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4. SELF-DIAGNOSTICS

4-1. Self-Diagnostics Procedure

PROCEDURE

After turning on power to the air conditioner, use the remote controller and follow the steps below to execute self- diagnostics.

Step 1: Press and hold the remote controller NIGHT SET BACK (NSB) button and 1 HR TIMER button. Then, press and hold the ACL (reset) button with a pointed object such as the tip of a pen. After 5 seconds, release ACL button first, then release NIGHT SET BACK (NSB) and 1 HR TIMER buttons, "oP-1" (test run) appears, blinking in the remote controller clock display area.

Step 2: Next, press the 1 HR TIMER button once to change the display from "oP-1" to "oP-3" (self-diagnostics). (The display continues to blink.)

Step 3: Finally press the ON/OFF button to engage self- diagnostics mode.

The self-diagnostics function utilizes the 3 indicator lamps on the main unit, in combinations of ON lamps, blinking lamps, and OFF lamps, to report the existence of sensor trouble or a protective operation. (The lamps blink or remain ON for 5 seconds, then turn OFF for 2 seconds.) Self-diagnostics is completed when the buzzer sounds 3 short beeps.

A maximum of 3 self-diagnostics reports are displayed, for 5 seconds each, beginning with the most recent report. Following this display the lamps turn OFF. In order to view the self-diagnostics results again, press the ON/OFF button again.

The 3 lamps remain OFF if no trouble has occurred.

<IMPORTANT> After self-diagnostics is completed, be sure to press the ACL (reset) button to return to normal mode. The air conditioner will not operate if this is not done.

<Clock display > Test run mode

Self-diagnostics mode

ON/OFF

operation button

NIGHT SETBACK button

1 HR.TIMER button

ACL (Reset) button

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Contents Model No Product Code No 852 353Please Read Before Starting Table of Contents Specifications Ceiling Cassette Type Wall Mounted TypeType Indoor Unit Model No SELF-DIAGNOSTICS Operation button Timer lamp High Power lamp Remote Control receiverCode Diagnostics items Operation lampSelf-Diagnostics Table Wall Mounted Type OI-852-6-4181-139-00-0 Mode D’EMPLOI STK-RCS-7TWSUAInstallation Location ContentsAlert Symbols Safety InstructionsFeatures Remote Control Unit DisplaySymbols Remote Control Unit Timer Select button Mode selector buttonHR. Timer button 1-HOUR OFF Timer ON/OFF operation buttonOperation with the Remote Control Unit Automatic Operation Only for COOL/DRY/HEAT ModelSpecial Remarks Cooling and DRY ModeHeating Mode Only for COOL/DRY/HEAT Model Automatic fan speedSetting the Timer Using the 1-HOUR OFF Timer Adjusting the Airflow DirectionAppendix B Installation Instructions STK-RCS-7TWSUA Sanyo Commercial Solutions Installation locationSwitching the room temperature sensor Sanyo Canada IncInstalling with in-wall junction box Installing directly onto the wallHow to wire the remote controller How to Test Run the Air Conditioner Appendix C Parts included in the package 7000 BTU, 9000 BTU, and 12000 BTU inverter modelsRefer to the Installation Instructions BTU and 24000 BTU inverter models Operation lamp Timer lamp Quiet lamp ION lamp