Brand and Model: York P3URB12N07501A - 4 burner
The outside temperature was about 0 degrees F the other day. My thermostat was set to 70 degrees F. The room temperature kept going from about 55 to 65 F and the red error light blinks 4 times. Even though the 4 lights mean a limit switch, I had an extra circuit board, so I tried that. Same problem. It seems like the duct gets very hot and trips the hot temperature switch. When I take off the cover, the burners only stay on between 3 and 4 minutes, even when the thermostat calls for more heat. All my vents are wide open. The blower motor seems to be working. Do I change the high temperature switch? Should I change the blower motor? Can I increase the speed of the blower motor? Any suggestions would be greatly appreciated.
John
The outside temperature was about 0 degrees F the other day. My thermostat was set to 70 degrees F. The room temperature kept going from about 55 to 65 F and the red error light blinks 4 times. Even though the 4 lights mean a limit switch, I had an extra circuit board, so I tried that. Same problem. It seems like the duct gets very hot and trips the hot temperature switch. When I take off the cover, the burners only stay on between 3 and 4 minutes, even when the thermostat calls for more heat. All my vents are wide open. The blower motor seems to be working. Do I change the high temperature switch? Should I change the blower motor? Can I increase the speed of the blower motor? Any suggestions would be greatly appreciated.
John
Comment