We have bypassed our Device No. 807A Oil Temperature Alarm which is connected to the 807B oil temperature sensor on our Carrier 19EA8923DJ Chiller Unit. We're monitoring our thrust bearing temperature with a limit of 175 deg F as a temporary measure until we can get this fixed.

Has anyone ever fixed one of these? I need to look up my carrier manual to see how hard this is going to be. We're concerned we could do more damage than good if we have to pull the stator to get to this device.

We have the machine pumped down at present, so that isn't an obstacle.