Sanyo CG1411 User Manual download pdf (Page 58)

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

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

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

Normal AC 104 – 126 V

In case of abnormality ➞ Check power source

No abnormalities, proceed to 12-2-2.

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

12-2-2. Abnormalities in Power Transformer

➀ Check voltage on the secondary core side.

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

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.

Normal TRANS 2 BRN – BRN AC 12 – 18 V

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

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.

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 99 100

No comments

Sanyo CG1411 User Manual Page 58