[color=#000099][/color]

Good day bosses. Please I use a ‘09 Hyundai Elantra and I’ve been having repeated AC issues. I once changed valve and my AC worked for about 2weeks fine then we’re back to the same problem of cooling at morning and night.

I had it checked and it was discovered my drier was dirty and compressor oil blackens. I opted for a external drier washed my condenser and radiator, changed my compressor oil. I was told my fan speed is too low and I had to put a Relay on it to make it go faster. Everything worked fine afterwards but about a week later I was driving in the morning and it chilled fine but suddenly went hot after about 3hours.
What’s likely to be the problem? It’s really stressing me.

Thanks

Abestos:
[color=#000099][/color]

Good day bosses. Please I use a ‘09 Hyundai Elantra and I’ve been having repeated AC issues. I once changed valve and my AC worked for about 2weeks fine then we’re back to the same problem of cooling at morning and night.

I had it checked and it was discovered my drier was dirty and compressor oil blackens. I opted for a external drier washed my condenser and radiator, changed my compressor oil. I was told my fan speed is too low and I had to put a Relay on it to make it go faster. Everything worked fine afterwards but about a week later I was driving in the morning and it chilled fine but suddenly went hot after about 3hours.
What’s likely to be the problem? It’s really stressing me.

Thanks

It seems your compressor has suffered black death. You said you washed the condenser and radiator, I assume you washed just the outside... Black death contaminates the whole system. You need to change your compressor, condenser, dryer, then flush your Evaporator and the lines. It might sound expensive but that's the way to do it right. Take it to a sound AC tech, he will advice you further.