HELP! I had a new furnace and AC unit installed spring last year. Both are Luxiare and were sold as fully compatable. Furnace works great. AC unit only starts intermittiantly. Many times it tries to start, turns for 5 seconds and stops. Does this over and over again. Other times, starts no problem (usually when its not that hot!). Service man replaced the circuit board (no change) and I replaced the thermostat (again no change to AC unit issues!). Service man said diagnosis is impossible unless the unit isn't working. Seems that whenever it stops and I call, by the time he arrives (next day!) it starts fine again! ANY THOUGHTS? Maybe a crimped line? HELP!
Surely you're not trying to run your A/C in Toronto this time of year! Even with a crankcase heater, a residential A/C compressor would have a hard time starting in a Canadian January. I'd simply leave the A/C off until next spring/summer, then if problems continue, call your tech, since it should still be under warranty.
in order to run the a/c in cold climates you need to have pressure controls and crank case heater. Are you trying to run in cold weather? If in warm weather, does the fan run and not the compressor?
Of course I am not running the ac in the winter. Just trying to get ahead of the game before it's needed in the spring. The tech seems good but keeps pointing to the electronics and I was wondering if MAYBE it was the piping he installed that's the issue!
you might try a hard start capacitor that connects across the run capacitors on your compressor to boost the initial start power, also make sure theres no bugs or debri in the contacts,Could be a bad start relay or start capacitor.
Could be a bad run capacitor.
Could be a bad wire on one of the compressor terminals.
Could be a bad compressor but check the other items first.
Tags: unit, start, capacitor Could, start capacitor
