- Low refrigerant level.
- Faulty compressor.
- Faulty expansion valve.
- Faulty condenser.
- Faulty evaporator.
- Faulty blend door.
- Faulty thermostat.
- Faulty control panel.
Diagnosis:
You can start by checking the refrigerant level. If it's low, you can try to recharge it. If that doesn't work, you may need to replace the compressor, expansion valve, or condenser. If the refrigerant level is OK, you can check the blend door, thermostat, and control panel.
Repair:
If the refrigerant level is low, you can recharge it using a refrigerant recharge kit. If that doesn't work, you may need to replace the compressor, expansion valve, or condenser. If the refrigerant level is OK, you can check the blend door, thermostat, and control panel.
Cost:
The cost of repairing an air conditioner that blows warm then cold can vary depending on the cause of the problem. If the refrigerant level is low, you can recharge it for around $50. If you need to replace the compressor, it can cost around $1,000. If you need to replace the expansion valve, it can cost around $200. If you need to replace the condenser, it can cost around $300. If you need to replace the blend door, it can cost around $100. If you need to replace the thermostat, it can cost around $50. If you need to replace the control panel, it can cost around $200.
Tips:
- To prevent your air conditioner from blowing warm then cold, you can have it serviced regularly.
- You can also check the refrigerant level yourself every few months.
- If you notice that the air conditioner is not blowing cold air, you can try to recharge the refrigerant yourself.
