I'm getting a very high pressure -235-250 psi on the lines. Could that be causing a P4 error? My compressor kicks on for a second, shudders and turns off.
@@garagebuildz5216 both of the valves are opened to the max. I'm debating on using conventional copper lines and vac them to get rid of risk the coolant isn't flowing.
@@robertberin4872 If you are installing from scratch and following the instructions you should not get such an error. There is no such thing as a vac clearing a blocked line. I am not an HVAC expert. I dont even know what the pressure ought to be. P4 is a voltage issue. Check the voltage on your terminals and check if it matches spec, and check your terminals have good contact. Some people confuse 240V and 120V systems.
P4 error could also be electrical. Unplug and plug back in your 3 wire connection from the compressor to the control board might fix it. Should be a white "T" shaped plug on newer models. Can also check it for equal resistance on all terminals and it should have no continuity to ground.
I'm getting a very high pressure -235-250 psi on the lines. Could that be causing a P4 error? My compressor kicks on for a second, shudders and turns off.
I have no idea. But I am guessing you didn't open your valves all the way; which is the most important step in the installation.
@@garagebuildz5216 both of the valves are opened to the max. I'm debating on using conventional copper lines and vac them to get rid of risk the coolant isn't flowing.
@@robertberin4872 If you are installing from scratch and following the instructions you should not get such an error. There is no such thing as a vac clearing a blocked line. I am not an HVAC expert. I dont even know what the pressure ought to be. P4 is a voltage issue. Check the voltage on your terminals and check if it matches spec, and check your terminals have good contact. Some people confuse 240V and 120V systems.
Having the same exact problem with the same model.
P4 error could also be electrical. Unplug and plug back in your 3 wire connection from the compressor to the control board might fix it. Should be a white "T" shaped plug on newer models. Can also check it for equal resistance on all terminals and it should have no continuity to ground.
I didnt bother to correct some minor wording errors. You should get it unless you are really dumb.