first you have to turn the valve and see if it was just in a wrong position
sounds like t stat is programmed wrong, reversing valve coil is bad or reversing valve is stuck.
Through the spark plug hole, soak the valve with penetrating oil. After sitting a while, tap lightly on the valve stem with a hammer. If after several tries this does not work then the head will need to be removed to see why the valve is stuck.
the reversing valve is what actually changes the refrigeration cycle from heat to cool. the reversing valve receives its signal from the thermostat.
There is a proportioning valve and once the repair is done and you have bled all the air out of the system the valve should reset itself unless it is stuck. If it is stuck you may have to replace the valve assembly if you can't free it up.
To remove the PCV valve from a 2004 Chevy Avalanche, first locate the valve, which is typically found on the valve cover. Disconnect the hose attached to the PCV valve, then gently twist and pull the valve out of its socket. If it’s stuck, you may need to use a pair of pliers. Once removed, you can install the new valve by reversing the process.
sounds like the carb needle valve is stuck or something is stuck in it. not a do it yourself repair, might need new carb. good luck
It is just stuck,
Inside the transmission, on the valve body.Inside the transmission, on the valve body.
If the reversing valve on a heat pump has an internal leak, it can cause a loss of refrigerant pressure and reduce the system's efficiency. This may lead to improper heating or cooling, as the valve fails to effectively switch between heating and cooling modes. Additionally, the leak can result in increased energy consumption and potential damage to the compressor due to inadequate refrigerant flow. Regular maintenance and prompt repair are essential to prevent these issues.
To repair a shut off valve using a shut off valve repair kit, first turn off the water supply to the valve. Then, follow the instructions in the repair kit to disassemble the valve and replace any damaged parts with the new ones provided in the kit. Reassemble the valve and turn the water supply back on to test for leaks.
The valve has failed.The valve has failed.
stuck valve in valve body? solenoid valve faulty if it has one?