Question about Garden
I need to locate the connections for the fuel pump solinoid, the ignitor, and trace the 24 volt dc coming from the control transformer.If i could locate a wiring diagram that would be excellent. It is a 1985 karcher hds 580 /ER691 1.608-121 115 v
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Posted on Jan 02, 2017
yes...check the check valve. A one-way directional valve, this part is also known as a DUMP valve. It opens when too much pressure builds in the hand wand (when not spraying water) in order to protect the pump, by returning the high pressure to its source reservoir. I suspect the DUMP valve is stuck in open condition (or nearly open).
Posted on Jun 10, 2007
Did you check if the igniters? they may be cloged up with ****. Unscrew the Sight glass on top of the boiler and run the machine (in cold or hot mode, doesn't matter, as the igniters are running all the time) and see if there are working, you should take them out anyway and give them a wipe with a rag as general maintenance item, and when you put them back in there should be about 5mm gap between them.
Less common reasons for the boiler to not work
- Faulty fuel solenoid valve, (You should hear a click sound about 5 - 10 seconds after you pull the trigger)
- Dirty fuel filter,
Take a look at those simple things and let me know if its any of these.
I have a Karcher HDS 750 1989 Year model
This machine just keeps going, it's had a fairly tough life but it has stood up to it all,
i hadent spent anything on it until about 6 months ago when i purchased a new fuel pump for it as the old was wasn't pushing 170PSI to the Disiel injector it had slowly droped 70psi, and it doesn't create a hotter burn in the boiler, but still very good for a 19yr old pump,
other than that thats all it's needed, it's still going strong to date
Very robust machine.
my e-mail is firstname.lastname@example.org
Posted on Nov 07, 2008
Some sump pump have a safty switch that will not let the hum. come on if the tank is full of water, I,m not sure if this is the type that you have but make sure that the pump is pumping water. Also your humidistat have an internal switch that it should be set to bypass not to power Note: some humidifier have their own power supply the 550 dose not
Posted on Feb 09, 2009
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