12-2. When the Air Conditioner Does Not Work at All (Both Indoor and Outdoor Units) — Operation Lamp Does Not Light

12-2-1. Malfunction in Power Supply

Check if operation selector of the indoor unit is set to ON. If it is not, set the switch to ON.

Check if the circuit breaker is disengaged or if electricity is not being supplied properly.

Normal

AC 104 – 126 V

*Use a circuit tester (set to AC range).

In case of abnormality Check power source

No abnormalities, proceed to 12-2-2.

12-2-2. Abnormalities in Power Transformer

Check voltage on the secondary core side.

Measure voltage 2P connector of TRANS 2 (without disconnecting connectors).

Normal

TRANS 2

BRN – BRN

AC 12 – 18 V

*Use a circuit tester (set to AC range).

Caution: Care should be taken that the tips of the tester rods do not touch each other since the circuit is electrically charged.

In case of abnormality Replace the power transformer.

12-3. Operation Lamp Blinks (It Keeps Blinking after 3 Minutes Following Start of Operation)

If the operation lamp continues to blink more than 3 minutes, check for the following possible causes in this order:

(1)Incorrect Wiring of Inter-unit Wiring (connector No. 1 – 4)

(2)Thermistor Abnormality (Indoor Unit Only)

(3)Protective Circuit of Outdoor (Burner) Unit Operated (during heating operation only)

(4)CT Detection

(5)Indoor Fan is Defective

(6)Power Circuit Wiring Error

(7)Outdoor Unit Power Supply Failure

(8)Outdoor Unit Power Transformer Defective

(9)Outdoor Unit Compressor Motor Overload Relay Has Operated

(10)Outdoor Unit Compressor Motor Defective

12-3-1. Incorrect Wiring of Inter-unit Wiring

If the blinking of the operation lamp occurs upon initial operation following installation work, incorrect wiring of inter-unit cable between indoor and outdoor units is likely. Correctly rewire the inter-unit cable.

Caution: Be sure to turn off the circuit breaker switch before carrying out the wiring work.

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Sanyo CG1411 Malfunction in Power Supply, Abnormalities in Power Transformer, Incorrect Wiring of Inter-unit Wiring

KGS1411, CG1411 specifications

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