ohming out compressor

[jgb123]

when checking ohms on a compressor the highest reading is between run and start, middle reading start and common, and lowest reading between common and run. is this correct?
how does it read on the schematic

R S C R S C

C S R


C S R

R S C R S C

what is the purpose of the run capcitor and the start capacitor?

[fat eddy]

It's been many years since I have used this, but if I am wrong I'm sure there will be some people here happy to correct me.

R to C = lowest reading
S to R = Highest reading
S to C = middle reading

In general the two lowa should add up to the high (approx.)

[Edited by fat eddy on 02-26-2005 at 08:39 AM]

[jgb123]

Originally posted by lmtd

Originally posted by fat eddy
It's been many years since I have used this, but if I am wrong I'm sure there will be some people here happy to correct me.

R to C = lowest reading
S to C = Highest reading
S to R = middle reading

In general the two lowa should add up to the high (approx.)

Nope, you messed up eddy:

R to C = lowest reading
S to C = middle reading
S to R = Highest reading

thank you for the information, very usefull

[justinothertech]

I ohm out compressor windings ferquently and have never had any problems, but I'm sure I will now!

[fat eddy]

LMTD,

You said I was wrong then posted the same readings that I did go figure

[Shophound]

Originally posted by fat eddy
LMTD,

You said I was wrong then posted the same readings that I did go figure

Eddy,

Yours:

R to C = lowest reading
S to C = Highest reading
S to R = middle reading


His:

R to C = lowest reading
S to C = middle reading
S to R = Highest reading


Um... I see a difference.

[stef]

C and R - Lowest
C and S - Low
S and R - Highest and MUST be equal to the sum of the resistenace of C & R plus C & S

[fat eddy]

Sorry LMTD,

You were right my original post did state the wrong information, thank you for catching that typo. I have since edited the typo to reflect my original intention.

Thank You,