ABAC B312-100 compressor

[snotters64]

Right ,here's where I struggle . What do I set the multimeter ohms,volts or continuity

 

[Seadog]

Ohms, low range. Picture of the meter front will help

 

[snotters64]

 

[Seadog]

Turn the knob 180 degrees to "200." The leads are in the correct sockets, but the black lead looks like it needs some attention in the near future.

Hold the two probes together to see what the resistance reading is. It should be extremely low. Measure the two pairs of windings.

 

[snotters64]

Turn the knob 180 degrees to "200." The leads are in the correct sockets, but the black lead looks like it needs some attention in the near future.

Hold the two probes together to see what the resistance reading is. It should be extremely low. Measure the two pairs of windings.

Yeh ,I noticed the cable on the meter . Thanks for your guidance much appreciated

 

[not done it yet]

If you are trying to get the motor running, do away with any other potentially interfering items - like that pressure sensor - for a start. Keep things as simple as possible - until you know if it runs or not. If the motor is cooked it will be consuming power through the shorted windings when connected to the mains. No current indicates an open circuit.

 

[carbon]

If you are trying to get the motor running, do away with any other potentially interfering items - like that pressure sensor - for a start. Keep things as simple as possible

See my post #17 in this thread

 

[not done it yet]

See my post #17 in this thread

See his post #35. It might appear that he has ignored your earlier advice

 

[snotters64]

See his post #35. It might appear that he has ignored your earlier advice

I'd rather not have your input thanks ,you always seem to have facetious undertones in your replies

 

[snotters64]

Measure red to red, and black to yellow, nothing else connected.

Red to red reads 1.5 ohms,black to yellow 0 ohms . I tried white to black and it read 4.9 ohms.

 

[Seadog]

Sorry, I saw the white as yellow. The red leads I'd expectvto be the run winding, the black/white the start winding. However, I can't get my head around the configuration.

 

[8ob]

How does this work without a centrifugal switch ?

Bob

 

[snotters64]

Absolutely don't worry about, is now a good time to say I'm colour blind . I configured this wiring and the motor runs , so does that mean the capacitors are bad ? If I run it too long in this configuration it pops the fuse .

 

[carbon]

If it runs then no the capacitors aren't bad. Is it working with a load?

 

[snotters64]

How does this work without a centrifugal switch ?

Bob

Because there isn't one

 

[snotters64]

If it runs then no the capacitors aren't bad. Is it working with a load?

There are no capacitors connected

 

[carbon]

How does this work without a centrifugal switch ?

Bob

The start capacitor in this case is rated 0-40uf, most motors with centrifugal switches have much higher capacitance for the start capacitor

 

[Neilj]

Red to red reads 1.5 ohms,black to yellow 0 ohms . I tried white to black and it read 4.9 ohms.

Were these readings with the two red, black and yellow wires disconnected from everything else? It's just that you mention white to black and there's no white coming off the motor, white is a capacitor wire?

 

[carbon]

There are no capacitors connected

With a single phase induction motor there needs to be one capacitor connected for it to work

 

[Seadog]

After much head scratching I've found this

Yours is configured like this

And it doesn't work!
I can only suggest that you reconfigure your circuit to match that of the top one.

It doesn't matter which is connected to line or neutral.
C1 I'd make 40μF, "s.w." is the white/black coil.
Stand back and flick the power on, see if anything happens. If it runs leave it on for a few seconds, switch off. Feel the capacitors for overheating. Also note direction of rotation. If it's going the wrong way then it just needs one winding to be reversed.