I have a jetted tub and I need to replace the air switch on the motor because it won't stay running. As long as the button is held down the pump runs, but stops when the button is released. I have the replacement switch but I need advice on disassembling the motor to get to the old switch.

I can see where the old switch is because that is where the air switch tube connected. I took off the tube and removed four REALLY long bolts from around the back side of the motor as well as two shorter ones. Should the rear housing of the motor come off now? I tried a little to get it off, but didn't want to pry on it until I knew that was the right thing to do.

Because there have been far more than one manufaturer of these type of tubs... it might help if you gave the manufacturer and the model number.

The tub is manufactured by American Acrylic & Injection and the motor's model is CRBT 07-1AA.

I think those " really long" bolts are the frame assembly screws. I would put them back. Isn't there a small box on the motor that has the switch inside? Mine just has 2 small screws and the top comes off. Air tube is fed through a small hole and goes into the switch. Switch is held on the motor with a small bracket and 2 wires.

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Originally Posted by ma0641

I think those " really long" bolts are the frame assembly screws. I would put them back. Isn't there a small box on the motor that has the switch inside? Mine just has 2 small screws and the top comes off. Air tube is fed through a small hole and goes into the switch. Switch is held on the motor with a small bracket and 2 wires.

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There's no box. The tube connects straight onto a nipple that is in a hole in the metal backing plate. I'll take some pictures tonight and post them for everyone's reference.

I did some gentle prying on the backing plate and it slipped right off, so it looks like my suspicions were correct. I popped out the switch, put the new one in, reinserted the bolts and the pump fired to life and stayed on. Mission accomplished.