I have two remaining questions concerning this repair:
First is a longer term concern -future replacement. This Ruud seems solid but my research has uncovered a large amount of negative press concerning quality and longterm reliability. Is this true of all Heat pump systems, or has Ruud changed. You guys are in the trenches where the rubber meets the road. What would you consider for yourself?? Please, any input would be appreciated.
Second concerns testing (trusting my repair). It is summer and the defrost control system is dormant. this appears to be for 3 reasons:
1. The system is on Cooling.
2. Action is triggered by the Frost Sensor and there is no frost on the outside unit.
3. There is a sensor for ambient temperature (New???) does it prevent defrost operation above some preset temperature??
The first I can handle, Just switch to heating and set the thermostat
It's the last 2 that concern me.
The hardware for the defrost operation is currently working. The heat pump is in the AC mode thus in the defrost mode as it heats the condenser coils outside. If there was frost on them it wouldn't last long!
My real concern is that the defrost CONTROL SYSTEM works. I may be very dense, and I don't have an environmental chamber let alone one big enough to fit the outside unit in, but isn't there a way to cycle the CONTROL SYSTEM NOW
rather than wait until winter to find out, when it's too late, that it still doesn't work??
Just exactly how do I "Just try the system" when the sensors are keeping it out of play???