Sinclair ASE-24AH Manual de Serviço descarregar pdf (Página 23)

d. Protection of pressure or temp.

e. Open-circuit and short-circuit trouble of T3

Is connection to connector of temp. sensor good?

Check the resistance of the temp. sensor according to Annex 1

Repair connector

No

Yes

Is it the resistance is normal?

Indoor PCB is defective.

Replace the sensor

Yes

No

Protection of pressure or temp.

Is it k1 or K2 open ?

Is temp. protective switch K1 open

Possible reason

1. The wires is loose to K1

2. Air or other gas in the refrigerant.

3. Heat exchanger is dirty

4. Outdoor fan or fan blade is

defective

5. Outdoor unit is bad ventilation

6. Refrigerant is leakage

7. K1 switch is defective

Is pressure protective switch K2 open

Yes

Yes

Yes

Possible reason

1. The wires is loose to K2

2. Air or other gas in the refrigerant.

3. Heat exchanger is dirty

4. Outdoor fan or fan blade is

defective

5. Outdoor unit is bad ventilation

6. Refrigerant is two much

7. K2 switch is defective

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