Three months ago, the refrigerant in my LAND CRUISER 100 leaked from the front evaporator unit. After the repair and refilling the refrigerant, the air conditioning worked normally and cooled well.
However, when the cool box is turned on and continues operating until it becomes cold and shuts off, a thumping noise occurs from the high-pressure (high side) refrigerant line at the moment the cool box cuts off.
Actions taken so far:
However, when the cool box is turned on and continues operating until it becomes cold and shuts off, a thumping noise occurs from the high-pressure (high side) refrigerant line at the moment the cool box cuts off.
Actions taken so far:
- Replaced the cool box expansion valve
- Replaced the front evaporator expansion valve (the rear air conditioner expansion valve was not replaced)
- Recharged the refrigerant:
- Low side: 28 PSI
- High side: 220 PSI