Sub-Zero Condenser fan problems

Does your Sub-Zero refrigerator condenser fan seem to be constantly running?

If you search the internet for this issue, you will seem it is quite common. The first thing to check is that the condenser is free of dust.

Sub-Zero recommend vacuuming the condenser every six months, or more if you have pets.

This is a link to the Sub-Zero condenser fan vacuuming guide.

If you have tried this then the problem may be electrical. We have come across this several times. The symptoms are:

• Condenser fan is running all the time, even when the compressors are turned off.
• The condenser itself is clean and free of dust.
• Enter into fridge diagnostic mode and check for error messages
• The most likely error message is 90 3 56. "Condenser triac short"

If the condenser triac has shorted on the board, then it is possible to repair it without buying a replacement board from Sub-Zero.

We can help you trouble shoot if you aren’t sure whether your board is faulty or not. Please send a message. You are also welcome to bring the circuit board to repair and collect same-day.

We can repair almost all Sub-Zero circuit boards at a fraction of the cost of a replacement from Sub-Zero, please get in touch!