Hi does anyone know anything about compressors I've got a problem with mine,

 

Now if I've not used it for a day or so it starts up fine fills up ok but once pressure drops and motor tries to start up again it cuts out (sounds like its blowing a fuse or something)and won't work again for a day or so

 

Don't know why but the motor will only work once a day lol don't know if its on strike or something

sounds as if it over heating.

sounds as if it over heating. the motor has a thermal switch to shut off .

Hi does anyone know anything about compressors I've got a problem with mine,

 

Now if I've not used it for a day or so it starts up fine fills up ok but once pressure drops and motor tries to start up again it cuts out (sounds like its blowing a fuse or something)and won't work again for a day or so

 

Don't know why but the motor will only work once a day lol don't know if its on strike or something

 

i bet you its one of them intregral motor/pump units....3 things to check in this order

1 Start capacitor

2 pressure release valve that goes from switch to tank (the unit that makes the hiss when it switches off)

3 stator coils on motor

these intregral units with direct motor shaft-pump shaft are underpowerd imho when the recievers are over half full and thats when your motor draws its max amps to re-start,There not like belt driven pumps with a ratio difference in pully sizes from motor to pump which aids low power motors.

Mines a belts driven one 150ltr tank it does feel very hot, tried to check oil level but for so e reason can't find the level check anywhere

Mines a belts driven one 150ltr tank it does feel very hot, tried to check oil level but for so e reason can't find the level check anywhere

 

any pics..is it an alloy high speed pump or a cast iron. Should be a sight glass if its alloy

Not sure will post up a few pics in the morning

So I changed the oil today, still feels hot but not as hot as before,

 

Now if its filling up and I stop it it will then restart with no problems but once it hits cut off pressure it won't restart after that,

 

Today it filled up it tried twice to start but kinda strained then just cut out n stopped working again ill post up a few pics of motor ect

 

Chinese motor and pump mate:thumbdown:...the offloader small air line going to the switch sounds like its sticking and when its trying to re-start the motor is fighting against pressure. Get yourself to machine mart and buy a new start switch or there cheap enough on ebay..you will have to adjust the pressure switch to your desired closing psi by taking the black cover off (1 phillips screw) and on top theres a spring loaded bolt with directional arrows stamped in. By the sounds of your problem its deffo the unloader stuck or next bet if thats ok the start capacitor on the motor.

Cheers for that was gonna change the switch but thought I'd ask on here first,

Thanks for the advice will let you know if it works

Ok so fitted a new switch it kicked up once but now keeps tripping the electrics?