Display Cooler

[K_Neil]

When I was a rookie you were dealing with refrigerant blends that had to be mixed for the application. R12 days. It does give you a differant opinion of the modern inventions they are pushing at us.

[timebuilder]

R134A is a single component refrigerant, not a blend. Therefore, it will not fractionate.

I the refrigerant were a 400 series blend and you suspect it has indeed fractionated, then it's useless and should be recovered and discarded.

Ice is correct. I started using 134A in my auto days, and I never had an issue with fractionation.

No need to jump out the OL.

[dave sulz]

If you didnot check start components it could be a bad relay or cap.

[coolperfect]

Hit it with a big lump hammer while trying to start.

[timebuilder]

If the OL is tripped on a fractional HP compressor, part of the ohming process is going to show open windings until the OL resets.

A good note for the rookies.

[Kaedos]

Would a bad start capacitor trip the breaker? After thinking about it for a second, of course it would. Sort of embarrassing how much I missed on that call...

[icemeister]

Would a bad start capacitor trip the breaker?

It could...if you jumped out the overload protector.

A bad start capacitor would prevent the compressor from starting and so the compressor motor would then draw lock rotor amps. If the OL were connected, it would sense this and trip. That's what it's there for.

Without the OL protector, it's very likely the motor would burn, very rapidly.

[Kaedos]

It could...if you jumped out the overload protector.

A bad start capacitor would prevent the compressor from starting and so the compressor motor would then draw lock rotor amps. If the OL were connected, it would sense this and trip. That's what it's there for.

Without the OL protector, it's very likely the motor would burn, very rapidly.

Doh!