Code 21 -open Or Short In Solar Sensor Circuit.

[andre]

hello guys,

I'm not getting too much of a cold air coming from my a/c, so I

have checked codes for a/c today and came up with code 21 flashing - can any one explain what does it mean in plain english?

I'm planing next week to recharge a/c gas -will that clear the code 21?

Thanks for urgent reply's

andre

[SKperformance]

It means nothing .

The solar sensor reads daylight and adjusts the fan to blow to the vents more than the floor to compensate for the sun on your face.

I was sure i added this to the tutorial.

[andre]

It means nothing .

The solar sensor reads daylight and adjusts the fan to blow to the vents more than the floor to compensate for the sun on your face.

I was sure i added this to the tutorial.

Hello SK

so why is it blinking?

regs andre

[SKperformance]

The solar sensor is not blinking.

Try and explain things as much and in as much detail as possible.

I am glad you found the tutorial on the hvac system but a flashing a/c light is from compressor lock up.

You either have a blockage , bad compressor or expansion valve.

All 3 have easy to search answers on replacing.