Head rises about 2 inches stops and goes back down

I know this is an old bed but I'm hoping someone is familiar with it. Everything works concerning the motor. The bed elevates and lowers; the lower section will fold up for knee and leg support and down again; but the head of the bed only goes up about 2 inches then lowers itself again. Any help would be appreciated. Thanks,

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Kenneth V

Mon Nov 22 2021Reply from Kenneth V

Very common problem with this model of bed... the CPR limit switch is most likely clogged with lint, remove seat section cover and cover pan/air system blower (if equiped with)in the middle ofthe bed, then at the base of the head drive gear you will find the CPR limit remove the lint ( helps to run the motor up the 2 inches then cut off power so the switch is accessisble) reassemble test by putting head up 15 diag. pull the CPR release handle to make sure it resets without hanging up.

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GeorgeM1956

Tue Nov 23 2021Reply from GeorgeM1956

Hi Kenneth, I've removed the seat section and can see the CPR release mechanism but I'm not finding the limit switch. I can see the gear coupling where it connects to the motor, I can hear the switch clicking, but where is the little devil?

Thanks very much for your help.

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Kenneth V

Tue Nov 23 2021Reply from Kenneth V

working from the CPR release frame base/shoe (white plastic shoe/glide, this what makes contact with the limit switch) left hand side when facing the foot of the bed, look for a black littlle tab that sticks out from the frame/deck about 4 inches behind and inline with the shoe, then clean and test.

Your welcome :)

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