2 door True freezer trips breaker....sometimes

[markettech]

Set me straight here guys.

Say the thermostat WAS "short cycling" the compressor...........wouldn't the overload on the compressor kick out long before the breaker tripped? Even with repeated LRA start attempts one would think the overload would take it in the shorts long before the breaker did.

Hvacmd - you said the amp draw at the panel was 12.4 - was this the same amp draw you got when you checked it at the unit?

I had a True freezer defrost issue a couple years ago. Turns out one of the wires inside the back wall of the cabinet short to ground. How this happened I have no idea........but it happened.

[nightranger121]

I can second Executioner..... we had a True freezer tripping the breaker as well... it was a GFI circuit, and upon calling True, they told us that the freezer should not be connected to a GFI circuit because it will trip it. Of course, this is just stupid, since all new construction around here is requiring ALL kitchen circuits to be GFI, but it is what it is.

[itsiceman]

I had a True freezer defrost issue a couple years ago. Turns out one of the wires inside the back wall of the cabinet short to ground. How this happened I have no idea........but it happened.

I've had the orange two wire defrost heater safety screwed to the ceiling shorted more then a few times on these boxes but, you could detect the short by meg ohms at the wall plug? hvacmd2002 did you check with a megar at the plug?

[itsiceman]

I can second Executioner..... we had a True freezer tripping the breaker as well... it was a GFI circuit, and upon calling True, they told us that the freezer should not be connected to a GFI circuit because it will trip it. Of course, this is just stupid

Is this possible? Wouldn't there have to be a short (problem with the unit) for the GFI to trip? I can't think of another unit besides an under counter Delfield that won't work on a GFI. They got the mullion evaporator dripping onto the evap fans and all the wiring

[Cosmo 8000]

I have experienced this twice where intermittent circuit breaker Trips were occurring and multiple techs could not find problem. The compressor was very hot. I opened the expansion valve one turn on both. Had frost right up to the compressor body. Possibly the compressor was cycling on overload. Both have not tripped again.

[itsiceman]

Cool story bro

[pecmsg]

I have experienced this twice where intermittent circuit breaker Trips were occurring and multiple techs could not find problem. The compressor was very hot. I opened the expansion valve one turn on both. Had frost right up to the compressor body. Possibly the compressor was cycling on overload. Both have not tripped again.

Did you check the SH after adjusting?

BTW you replied to a 11 year old post!

[indy2000]

is this a dedicated circuit?

nothing else on it?