PWA AC or DC version - and conversion guide
The PWA circuit boards used to all be AC ( using AC transformer and Motors ),
but the trend to DC motors ( 7286039 7234731 7228900 7228544 7252381 7250622 )
and DC transformers ( PN 7337482 - 7351054 ) has just about eliminated the AC systems,
so replacement of the PWA board in some cases requires "converting" the rest of the Valve to DC ( direct current ).
Older models used AC motor ( 7285944 )
and AC transformer ( 7275907
The switch to the Newer DC models started to occur around 2004-2006, depending on the "Brand".
So check the Model Number and Part Number for the PWA, Motor, and Transformer carefully before ordering.
You might have an OLDER AC model, but be looking at a NEWER Manual that references the DC parts.
To Convert from older AC to DC, you will need
1 ) the new PWA board,
and
1 ) Motor - 24 volt DC - PN 7286039
1 ) Mounting plate - larger High Flow valves PN 7231393
or standard valves - PN 7231385
1 ) Switch, if you don't have this one now, PN 7030713
1 ) Transformer - newest PN 7351054
1 ) 6 pin wiring, if you don't have now. - PN 7309803
Note there are Two Size Valves. And they are called 3/4" and 1",
but BOTH have 1" piping connections on the REAR.
So, the fact that you have 1" piping / fittings,
has NOTHING to do with whether your valve is the "Standard 3/4" or the "Large 1" Valve Size:
REFERENCE the following:
3/4" Standard, ( 5 screws Valve Cover ).
Or 1" High Flow "Large". ( 8 screws Valve Cover ).
And they use different size Seal Kits and Rotor Discs ( and Valve Body, Valve Cover, By Pass, etc ).
The Standard Version Seal Kit ( 7129716, WS35X10005 ) we sell is commonly used and smaller in size than the 1" ( Large ) valve version, so please check before ordering.
And the LARGER High Flow SIZE:
The Larger 1" Version Seal Kit ( 7185487, WS35X10020 ) is a full 1" larger, so please check if you are not sure before ordering.
For Model Number Reference, as to whether yours is 3/4" Standard or 1" High Flow Valve design, see the Service Manual Listings on our website,
SEARS - Kenmore
or
GE Smartwater
or
Whirlpool
Also you should take a look at this animation from the Morton softener site - the link is below.
Their softener is another variant of the Ecowater/NorthStar/Sear/GE Smartwater type system.
The animations are almost identical to the animations on the Kenmore site, except the Morton animation also
shows the flow paths, dis-assembly and reassembly of the complete valve body, including all the o-rings.
It also shows the complete float assembly - Kenmore site doesn't show either of these assemblies last time I checked.
After the link is pulled up you have the option to run program - I had to click the button twice
- may just be my browser but I figured I'd mention it.
Morton System Saver Water Softener Animation; (Click Link Below)
https://www.mortonwatersofteners.com/interactive-animation/index.html
but the trend to DC motors ( 7286039 7234731 7228900 7228544 7252381 7250622 )
and DC transformers ( PN 7337482 - 7351054 ) has just about eliminated the AC systems,
so replacement of the PWA board in some cases requires "converting" the rest of the Valve to DC ( direct current ).
Older models used AC motor ( 7285944 )
and AC transformer ( 7275907
The switch to the Newer DC models started to occur around 2004-2006, depending on the "Brand".
So check the Model Number and Part Number for the PWA, Motor, and Transformer carefully before ordering.
You might have an OLDER AC model, but be looking at a NEWER Manual that references the DC parts.
To Convert from older AC to DC, you will need
1 ) the new PWA board,
and
1 ) Motor - 24 volt DC - PN 7286039
1 ) Mounting plate - larger High Flow valves PN 7231393
or standard valves - PN 7231385
1 ) Switch, if you don't have this one now, PN 7030713
1 ) Transformer - newest PN 7351054
1 ) 6 pin wiring, if you don't have now. - PN 7309803
Note there are Two Size Valves. And they are called 3/4" and 1",
but BOTH have 1" piping connections on the REAR.
So, the fact that you have 1" piping / fittings,
has NOTHING to do with whether your valve is the "Standard 3/4" or the "Large 1" Valve Size:
REFERENCE the following:
3/4" Standard, ( 5 screws Valve Cover ).
Or 1" High Flow "Large". ( 8 screws Valve Cover ).
And they use different size Seal Kits and Rotor Discs ( and Valve Body, Valve Cover, By Pass, etc ).
The Standard Version Seal Kit ( 7129716, WS35X10005 ) we sell is commonly used and smaller in size than the 1" ( Large ) valve version, so please check before ordering.
And the LARGER High Flow SIZE:
The Larger 1" Version Seal Kit ( 7185487, WS35X10020 ) is a full 1" larger, so please check if you are not sure before ordering.
For Model Number Reference, as to whether yours is 3/4" Standard or 1" High Flow Valve design, see the Service Manual Listings on our website,
SEARS - Kenmore
or
GE Smartwater
or
Whirlpool
Also you should take a look at this animation from the Morton softener site - the link is below.
Their softener is another variant of the Ecowater/NorthStar/Sear/GE Smartwater type system.
The animations are almost identical to the animations on the Kenmore site, except the Morton animation also
shows the flow paths, dis-assembly and reassembly of the complete valve body, including all the o-rings.
It also shows the complete float assembly - Kenmore site doesn't show either of these assemblies last time I checked.
After the link is pulled up you have the option to run program - I had to click the button twice
- may just be my browser but I figured I'd mention it.
Morton System Saver Water Softener Animation; (Click Link Below)
https://www.mortonwatersofteners.com/interactive-animation/index.html
