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Generac Pressure Washer - Replace or repair pump?

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Generac Pressure Washer - Replace or repair pump? dan 02-24-2008
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Posted by dan on February 24, 2008, 2:40 pm
Model G21 (01536-1) 2100 PSI

This thing did not work right straight from the store. At any rate,
here's the issue: Once the pressure builds up it's fine until I release
the trigger. Then it goes to standby mode (low pressure). But when I
squeeze the trigger again, very little pressure is present - it just
puts out slightly more water than standby. With the trigger wide-open,
I have to change the nozzle setting - either push in or pull out to
gain the high pressure again. A guy at my lawn maint shop said it's
likely a valve that is not sensing the pressure change and opening or
closing. He suggested a pump rebuild kit. I found a site, but they have
several kits for the different parts of the pump. Trial and error could
get me a rebuilt pump but damn close to the price of a new pump. I
think I need this (unloader) kit:

http://www.ppe-pressure-washer-parts.com/product/187879GS

I use the pump once a year to do my driveway and grill. I hate to dump
more money into it, but the only bad part is the pump. The engine is
just fine. Thoughts?

--


PexSupply QuikTrak 468x60
Posted by on February 24, 2008, 3:01 pm
On 24 feb, 20:40, "dan" <> wrote:
> Model G21 (01536-1) 2100 PSI
>
> This thing did not work right straight from the store. At any rate,
> here's the issue: Once the pressure builds up it's fine until I release
> the trigger. Then it goes to standby mode (low pressure). But when I
> squeeze the trigger again, very little pressure is present - it just
> puts out slightly more water than standby. With the trigger wide-open,
> I have to change the nozzle setting - either push in or pull out to
> gain the high pressure again. A guy at my lawn maint shop said it's
> likely a valve that is not sensing the pressure change and opening or
> closing. He suggested a pump rebuild kit. I found a site, but they have
> several kits for the different parts of the pump. Trial and error could
> get me a rebuilt pump but damn close to the price of a new pump. I
> think I need this (unloader) kit:
>
> http://www.ppe-pressure-washer-parts.com/product/187879GS
>
> I use the pump once a year to do my driveway and grill. I hate to dump
> more money into it, but the only bad part is the pump. The engine is
> just fine. Thoughts?
>
> --

Hi
I wouldn't repair the pump, but i would repair the sensor that mesures
the pressure, as the as the gey at your lawn maint shop said. Also
possible is dirt which is making the sensor malfunctioning ! Is it
totally clean ? Can there be some sand in it ?
http://www.freewebs.com/wimvlb/index.htm
wim

Posted by dan on February 24, 2008, 3:20 pm
wimxxx@telenet.be wrote:

> On 24 feb, 20:40, "dan" <> wrote:
> > Model G21 (01536-1) 2100 PSI
> >
> > This thing did not work right straight from the store. At any rate,
> > here's the issue: Once the pressure builds up it's fine until I
> > release the trigger. Then it goes to standby mode (low pressure).
> > But when I squeeze the trigger again, very little pressure is
> > present - it just puts out slightly more water than standby. With
> > the trigger wide-open, I have to change the nozzle setting - either
> > push in or pull out to gain the high pressure again. A guy at my
> > lawn maint shop said it's likely a valve that is not sensing the
> > pressure change and opening or closing. He suggested a pump rebuild
> > kit. I found a site, but they have several kits for the different
> > parts of the pump. Trial and error could get me a rebuilt pump but
> > damn close to the price of a new pump. I think I need this
> > (unloader) kit:
> >
> > http://www.ppe-pressure-washer-parts.com/product/187879GS
> >
> > I use the pump once a year to do my driveway and grill. I hate to
> > dump more money into it, but the only bad part is the pump. The
> > engine is just fine. Thoughts?
> >
> > --
>
> Hi
> I wouldn't repair the pump, but i would repair the sensor that mesures
> the pressure, as the as the gey at your lawn maint shop said. Also
> possible is dirt which is making the sensor malfunctioning ! Is it
> totally clean ? Can there be some sand in it ?
> http://www.freewebs.com/wimvlb/index.htm
> wim

The problem is, the sensor is IN the pump. One of those numerous kits
would/should fix the issue. I just don't know which kit.

--


Posted by Art on February 24, 2008, 3:12 pm
Pay someone to clean the driveway every few years.


> Model G21 (01536-1) 2100 PSI
>
> This thing did not work right straight from the store. At any rate,
> here's the issue: Once the pressure builds up it's fine until I release
> the trigger. Then it goes to standby mode (low pressure). But when I
> squeeze the trigger again, very little pressure is present - it just
> puts out slightly more water than standby. With the trigger wide-open,
> I have to change the nozzle setting - either push in or pull out to
> gain the high pressure again. A guy at my lawn maint shop said it's
> likely a valve that is not sensing the pressure change and opening or
> closing. He suggested a pump rebuild kit. I found a site, but they have
> several kits for the different parts of the pump. Trial and error could
> get me a rebuilt pump but damn close to the price of a new pump. I
> think I need this (unloader) kit:
>
> http://www.ppe-pressure-washer-parts.com/product/187879GS
>
> I use the pump once a year to do my driveway and grill. I hate to dump
> more money into it, but the only bad part is the pump. The engine is
> just fine. Thoughts?
>
> --
>



Posted by ransley on February 24, 2008, 3:56 pm
On Feb 24, 1:40=A0pm, "dan" <> wrote:
> Model G21 (01536-1) 2100 PSI
>
> This thing did not work right straight from the store. At any rate,
> here's the issue: Once the pressure builds up it's fine until I release
> the trigger. Then it goes to standby mode (low pressure). But when I
> squeeze the trigger again, very little pressure is present - it just
> puts out slightly more water than standby. With the trigger wide-open,
> I have to change the nozzle setting - either push in or pull out to
> gain the high pressure again. A guy at my lawn maint shop said it's
> likely a valve that is not sensing the pressure change and opening or
> closing. He suggested a pump rebuild kit. I found a site, but they have
> several kits for the different parts of the pump. Trial and error could
> get me a rebuilt pump but damn close to the price of a new pump. I
> think I need this (unloader) kit:
>
> http://www.ppe-pressure-washer-parts.com/product/187879GS
>
> I use the pump once a year to do my driveway and grill. I hate to dump
> more money into it, but the only bad part is the pump. The engine is
> just fine. Thoughts?
>
> --

It might be your low water pressure and lack of flow-gpm. Try it at a
location with known good pressure and gpm. But why you waited to
address the issue till the warranty expired says you never did use it
or know if it worked, or probably even got it new .

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