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HT100 pump with eletronic pressure switch: not working

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2 Answers

How do i replace a pressure switch in a QCA spa


open cover the powerpack has a silver pipe running along bottom that has unions on both sides there is a pressure switch mounted to pipe. on pressure switch two wires if doesnt work make sure you have voltage on both sides of switch if only voltage on one side bad switch if voltage on both check recirculation pump to see if working also make sure filters are clean

Jul 20, 2014 | Qca Spas Jewel Series Topaz Plus Hot Tub

1 Answer

Check engine light goes on after I rev engine. when rpm is low light comes on. why?


Dear friend. This issues appears when we have a fuel pump problem. I had the same issue. When the fuel pump pressure is low, the eletronic injection control send a sign for EPC control to blink the engine ligth. With rpm hight you increase the pressure automtic due to hight rotation motor applied on the fuel pump. To solve it, change the fuel pump, check if you have any hose blocked with dirt and so on. Afterthat verify the eletronic injectors nozzles and the timing belt position.
Hope to help you.
Regards.

Erik Weide

Jul 03, 2014 | 1992 Mitsubishi 3000GT

1 Answer

I JUST INSTALL A GOOD ENGINE ON A 2004 V6


The ECU controls the firing of the injectors based on the position of piston and valves which the Cam and Crank sensors report to the ECU.
Your saying the pump works(b+ at the pump and its buzzing) but there is no residual pressure to start the vehicle and you don't know if the pump can produce the pressure needed to keep the vehicle running.
Well fuel pressure testing is dangerous.
So I'll start with making sure B+ is making it to pump and its buzzing.If pump buzzes then use a fuel pressure gauge and attach it to the schrater valve on the fuel rail and test its residual pressure. Use shop manual to determine if you have the correct residule.
Then do whatever shop manual tells you to test for running fuel pressure.
If dealing with fuel is not your thing then take it to a repair shop. It's safer for one thing

I'm gonna call it at the pump cause if there is no residual pressure that means pump is defective and you will finish burning up pump trying to get the vehicle to start.

May 18, 2010 | 2002 Land Rover Freelander

1 Answer

Why is the pump cutting in so much


Check your water pressure tank air pressure, turn off pump, drain off all water pressure and using a air pressure gauge check pressure at the schrader valve on the water pressure tank. It should be 2 lbs below pump cut-in pressure, they come factory charged at 30 PSI...works for most residential systems. Most likely you have a bad bladder in pressure tank.

Other possibles are a broken line between pump and pressure switch/pressure tank or bad pressure switch.If you have a pressure gauge on the water system(should have one near pressure switch) see if it is cycling at the right points if it is the switch is good. If pressure is dropping with NO water uasge in house you have a leak.

Most likely a bad pressure tank bladder is the problem.

Oct 24, 2009 | Jet Plumbing

1 Answer

My well keeps running i replace the pressure switch and the well starts working properly this happens every 6 months i have replaced the well , jet , and bladder tank why does this keep going on


by keeps running I assume that the presure switch doesn't cut out at the desired pressure and replacing the pressure switch solves the problem probably the contacts in the pressure switch are becoming welded if it worked for years and then this just started then if the pump has a capacitor start ( box inside the house between the pressure switch and the pump wires) you may want to cosider replacing that component and well your poking around verify that the rating of the pressure switch matches your pump requirements amps volts ect..
Good Luck

Oct 08, 2009 | Plumbing

1 Answer

Pump is not working, pressure gauge and pressure switch have been replaced.


the automatic pressure switch does restart the water pump when the valave is open?

Apr 26, 2009 | Garden

1 Answer

Battery of volvo s40 not charging


volvos have an eletronic water pump that help to cool the engine after you switch of you may have a fault with it or one of the temp sensors

Dec 03, 2008 | 2006 Volvo S40

2 Answers

2000 Honda accord


Have fuel pressure checked at fuel rail, scan ecm for codes or replace fuel filter.

Jul 11, 2008 | 2000 Honda Accord

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