What causes a high pressure transducer to go bad? The transducer is on a York air handle that uses copeland scroll compressors and r22 refridgerant. I was told the transducer was bad when one of the compressors was being replaced. Would careless brazing cause the transducer internals to melt? Can the transducer be removed before brazing. Any technical help would be appreciated so we can learn and move on.