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Re: 5-yr old softub 220 inop--power light flashes

Posted By: spaguy1
Date: Thursday, 29 June 2006, at 7:12 a.m.

In Response To: Re: 5-yr old softub 220 inop--power light flashes (spaguy1)

: the easiest way to confirm is to purchase a new
: sensor...they're aprox. $30.00

: The circuit board manufacturer would never
: release the schematic.

: Your problem may also be from an erratic
: potentio meter on the circuit board. the
: High Limit setting may be jumping up and
: down causing your HL to trip every now and
: again, which in turn causes your power light
: to blink.

: Get a digital volt meter and set it on 2 or 20
: DC volt then connect the black lead on the
: ground pin at the J3 location on the board
: and the red lead to the HL pin. This will
: give you a reading of what the HL is set
: for. It should be set for anywhere from 114
: to 116. Give or take a few degrees. Monitor
: it for a while and see if the setting comes
: down quite a bit, if it does then I would
: put my money on the circuit board. You can
: do this same test by placing the red lead on
: the SN pin. this will tell you what your
: sensor is reading at the time. It should
: always be within a few degrees of the actual
: water temp. If the sensor reads way below or above
: actual water temp then the sensor is the
: problem. Good Luck.

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