I've had a couple of similar situations that concern me. A month ago and again this morning (about 45 degrees out this morning, colder last month) I heard the heat pump repeatedly kicking on and off. Almost like it couldn't start but would keep trying? The stat shows 73 inside and setpoint is at 75, also says heat is on. But the heat pump is not running and no air is blowing. This morning I turned the stat to 76 and the aux heat came on and got the stat to set point in a little while. I turned it down later since it was too warm and it has been behaving normally since.
The first time my HVAC folks came out a month ago, they ran it through its paces and all looked good. They're going to come back today and check it again. My question is if this seems normal or if I'm just a crazy home owner that is jumping the gun by calling them when things seem to get back to normal in a little while. I want to be prudent in notifying them of a possible issue but don't want to call them unnecessarily. They're a good company and have been quick to help me with same day service.
Sorry for the long post but wanted to give all the info I could. I'm just wondering if this behavior rings a bell with anyone.
I have an 18month old Trane 2 zone system consisting of the following:
TUD100R9V5 XV80 furnace with two stage heat and variable speed indoor blower motor.
Aprilaire model 2200 hi efficiency air cleaner
RXC054S3 hi efficiency indoor coil.
4TWX4048 4ton XL 14i deluxe hi efficiency heat pump. System uses R410 refrigerant.
New Refrigeration line set.
EWC (2 zones, one up and one downstairs)Zone Control panel.
Motorized zone dampers.
Barometric bypass damper.
Hart & Cooley A-618 adjustable deflection registers.
TCONT803 VIsion Pro tstat with summertime humidity control. One thermostat upstairs and one downstairs.
Thanks for any responses.
And Happy New Year!!!