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The compressor doesn't start up unless I hit the high pressure reset button.

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If the compressor is shutting off due to high pressure, the condenser coils may be dirty or blocked. Remove the top grill (may include fan and motor) and clean the coil fins from the inside out with a garden hose. Also cut any grass or shrubbery from around the unit. Remove any obstruction you see that may block air flow. Good air flow is crucial to keeping the high pressure down, especially in hot weather. I hope this helps!

Posted on Sep 09, 2009

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With an air compressor, make sure there is correct oil and at right level. Unless a big industrial type, there should only be a pressure regulator to control compressor electric motor. Nothing to reset. Good luck
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How do you know it will run if you reset the reset button? You could have a problem with the coil of the starter, pressure switch not closing and/ or overload issues. The reset is usually on the overload block. To check the coil you need a volt meter where you can measure in ohms or resistance. Remove both wires on the coil with power off !!!!!! and measure across those two terminals. If it is showing open then you have a bad coil. To check the pressure switch to the same thing across the motor and line terminal. If open with 0 psi in tank then pressure switch is bad. Last thing to check is overload block, there are normally a 95 and 96 terminal. Check for continuity across those two terminals (while power is off !!!!!). If open and the reset button is pushed then the overload block is defective.

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My line water heater turns off after a few minutes


if u are hitting the red button and it is a heat pump hot water system it means that the unit is going out on high pressure ( the red button is a high pressure manual reset button) this could be caused by a few things could be over charged ( but unlikely if no one has touched it recently) a solenoid isnt opening or there is a blockage in one of the TX valves. if the button u are pushing isnt in the pipe work and it is on the compressor it could be an over temp switch on the compressor ( unit could be short of gas) just need a little more info to pin point the problem.

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Since I am not there and can't see what is happening this might just be a WAG, but when my air compressor does that, it is either the pressure has been set too high, and when it reaches the maximum rated setting it trips the over pressure switch that trips the reset button.

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Hi, some anknown animal bit off the reset button on my outside compressor. Where can i buy a new one? Part # I guess DBK 4B04799 or so. Thank you


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It sounds like the unit is tripping off from high pressure. Check you filter and indoor coil. You may have low air flow inside that is causing the refrigerant pressure to be to high.

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