My Carrier 58MVP propane furnace is giving me problems big time. Every time I set the thermostat to over 68 degrees, within an hour I get a message on the infinity thermostat that says "system malfunction". I got the 58MVP/38TDB system, it's less than a year old. The dealer has come out to reset the furnace about 4 times since November. Same problem occurs within a day or two after they come out. I have been waiting three weeks for them to come back out this last time. Now the dealer says the furnace is getting too hot and they need to add another duct into the ductwork. The furnace continues to heat but I have to manually dismiss the notice everytime I change the thermostat. Also when the fan kicks on it sounds like it is always on high.
I have a ten year parts and labor warranty, but I'm wondering if purchasing this heating cooling system has been a mistake. Or if buying from this dealer was the mistake. I don't know if the dealer really knows what is wrong.
They have been out so many times I've considered making them a key to let themselves in.
Is the furnace safe operating in this manner?