Delta Kitchen Faucet Bonnet Nut Stuck

The bonnet nut fits over the faucet valve and holds the valve into place.

Delta kitchen faucet bonnet nut stuck.

Handle and bonnet nut. Customer had a 3 year old delta 9178 dst touch kitchen faucet with the diamond cartridge in it. Lift valve cartridge out of body. Sink faucets bathing showering toilets bidets accessories collections new products repair parts design innovation.

Let sit for 15 minutes and try to remove bonnet nut. Delta 9178 dst struck bonnet nut ran into a situation yesterday. I have been grabbing the base with channel locks and trying to unloosen the nut with adjustable wrench. There was a lot of calcium buildup inside once i got it off.

Browse now to customize your kitchen or bathroom. I called delta to order a new bonnet nut and they told me to first try mixing half very hot water and half white vinegar then dip a cloth into the mixture and wrap it around the bonnet. However the bonnet will not budge when i take the pipe wrench to it. I am attempting to replace the diamond seal cartridge in my delta kitchen sink faucet but i cannot loosen the bonnet nut from the plastic base see pic no matter what i try.

Won t budge at all. I managed to get the handle off with some force and slight twisting back and forth. Place handle on stem and rotate counterclockwise approximately 1 4 turn after the stop has been contacted. Do not pry the valve cartridge out of the body with a screwdriver.

To remove the bonnet nut turn it in a counterclockwise direction with a wrench until the nut is free from the threads on the valve then lift the nut up and over the valve to complete the removal process. I feel as though i am missing something obvious here.