Sanyo SAP-CRV123EH User Manual download pdf (Page 38)

10. TROUBLESHOOTING

■ Precautions before performing inspection or repair

NOTE

Executing self-diagnostics

● After checking the self-diagnostics monitor, turn the power OFF before starting inspection or repair.

● High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an electrical charge

(charging voltage DC 310 V) even after the power is turned OFF, and some time is required for the charge to dissipate. Be

careful not to touch any electrified parts before the controller LED (red) turns OFF.

If the outdoor controller is normal, approximately 30 seconds will be required for the charge to dissipate. However, allow at

least 5 minutes for the charge to dissipate if there is thought to be any trouble with the outdoor controller.

1: If the operation lamp blinks every 0.5 seconds immediately when the power

is turned ON, there is an external ROM (OTP data) failure on the indoor

circuit board, or a ROM socket insertion problem, or the ROM has not been

installed.

2: The failure mode is stored in memory even when the power is not ON.

Follow the procedure below to perform diagnostics.

■ Method of self-diagnostics

Follow the procedure below to perform detailed trouble diagnostics.

I/OFF

1HR.

UIET

MODE

TEMP.

TIMER

CANCEL

SENSOR

ADR ACL

24H12HF

CLOCK

NIGHT SETBACKFAN SPEED

HIGH POWER

FLAP

AIR CONDITIONER

1HR.

TIMER

button

ON/OFF

operation

button

ACL

(Reset)

button

QUIET

button

< Clock display >

Test run mode

Self-diagnostics mode

Step 1: Press and hold the remote controller QUIET button and 1 HR TIMER

button. At the same time, press the ACL (reset) button. Use a pointed

object such as the tip of a pen to press the ACL button.

When this has been done, “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.

After turning on power to the air conditioner, use the remote controller and

follow the steps below to execute self-diagnostics.

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 76 77

Comments to this Manuals

No comments

Sanyo SAP-CRV123EH User Manual Page 38

Comments to this Manuals

Related products and manuals for Mobile air conditioners Sanyo SAP-CRV123EH