Sanyo CH1872, CH2472 service manual How to Test Run the Air Conditioner, a b

How to Test Run the Air Conditioner

After turning on power to the air conditioner, use the remote controller and follow the steps below to conduct the test run.

(1)Set the remote controller in Test Run mode. (Fig. 59a)

a)Press and hold the ION button.

b)Then press and hold the 1HR TIMER button.

c)At the same time, press the ACL (reset) button once. Use a pointed object such as the tip of a pen to press the ACL button.

ON/OFF operation

ION

button

•After a few seconds, “ ” appears and “oP-1” blinks in the remote controller display area.

(Fig. 59b)

d)Release the 1HR TIMER button.

e)Release the ION button.

(2)Start Cooling mode test run by pressing the ON/OFF operation button of the remote controller. (Fig. 59a)

•	This starts the fan producing uncooled forced air with
	the 4 indicator lamps (OPERATION lamp, TIMER
	lamp, QUIET lamp, and ION lamp) on the main unit
	blinking. (Fig. 59c)
•	After 3 minutes, the system shifts into cooling opera-
	tion, and cool air will start to be felt. Cool mode test
	run is unaffected by the room temperature.

button

A

1HR.

TIMER button

ACL (Reset) button

(3)	Press the ON/OFF operation button of the remote con-
	troller again to stop the test run. (Fig. 59a)
(4)	Finally press the ACL (reset) button of the remote con-
	troller to release it from Test Run mode to return to nor-
	mal mode. (Fig. 59a)
	• “ ” and “oP-1” will disappear from the remote con-
	troller display area.

NOTE

Troubleshooting:

In the event that the green “Operation Light” is blinking upon powering up the system, an error condition exists. In this case, refer to the self-diagnostics procedure on the

inside of the front cover.

IMPORTANT

After the test run is completed, be sure to press the ACL (reset) button to return to normal mode. The air conditioner will not operate correctly if this is not done.

Fig. 59a

Fig. 59b

OPERATION lamp

TIMER lamp

QUIET lamp

ION lamp

Fig. 59c

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