Sounds like the auxillary heat strips are coming on and off....what kind of time does it cycle on and off?
SOURCE: I have a Trane PTAC, MODEL 3 PTHD1201GBA. I just
Was the board exactly the same as the one you took off? Even if it was go back and check your wiring. That would be the first place to look since the board was all that was changed.
SOURCE: AC unit outside blowing out cold air, vents
If you have a heat pump probably there's a wrong connectionin the thermostat, but if is not a heat pump ,the compresor is not working or the unit leaked all the refrigerant.
Testimonial: "thank you, we have had a problem in the past with refrigerant leaking, was supposed to be fixed"
SOURCE: amana ptac- blows same temperature air whether its
Check to see if your compressor is running. Thre are 5/16 screws on either side of the unit holding it to the case. Take those out and you can get to the cpmpressor. These are not complicated units but you may have to have a service tech look at it for you. I do sell a lot of these PTAC units so if your compressor is running you have leak or bad compressor. Russ
SOURCE: blows cold air
Sounds like you have a problem upon start up of heat. Your safteys maybe shutting you down, and restting voltage to your curcuit board allows you to have another heating cycle. Honestly you may due justice calling a tech.
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