I have a HydraMaster crossfire 4.4. I have no water coming out of my wand, the pump in switch won’t turn on. And my pressure gauge is not working. I’m new to the carpet cleaning business, I would really appreciate some help.
Is the pressure gauge broken? Or do you just not have any pressure making it that far? If the switch won't turn on try taking the switch off and bridging the two wires. If it works the switch is bad, easy cheap fix. If not you have to dig deeper.
It sounds to me as if there is no water in the truckmount for the pump to pressurize. Don’t run the pump dry. Can you hook up directly to a hose spigot so you have water going into the machine? Make sure the water box is full before starting the machine again.
If the pump has run dry you may need to re-prime it. Do this by sticking a male quick connect into the solution line hookup on the front of the machine. Start the machine and see if water comes out. If not you may need to stick your vacuum hose on the outlet for a few seconds to get the water flowing.
Once you have the pump primed you can remove the male quick connect and you should be able to adjust your pressure using the pressure regulator valve.