Protection Of Pressure Or Temp. - Toyotomi DCT 100HSPi Service Manual

Troubleshooting

9.2.4 Protection of pressure or temp.

Protection of pressure or temp.
Yes
Is it k1 or K2 open ?
Is temp. protective switch K1
Yes
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
Is pressure protective switch
Yes
Possible reason
1. The wires is loose to
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
K2
K2
Outdoor units