The blower will not come on when heat is called for. In Auto bad, switch to On fine.

bankman Posts: 1, Reputation: 1

New Member

Dec 25, 2009, 09:33 AM

The blower will not come on when heat is called for. In Auto bad, switch to On fine.

I have an old Carrier Split system (cerca 1983) I replaced the gas valve, then the board. The only thing I haven't changed is the transformer. When the unit is on heat the burners ignite, but the blower will not come on. I have to put the fan in the "on" position to get the blower to come on. When in the "auto" position the blower doesn't come on, but the burners do. Can anyone help me?

Check out some similar questions!

AC blower fan will not run in auto, only "ON". (heater runs in auto fine). [ 2 Answers ]

AC problem. My blower fan will not run in auto. (heater runs in auto fine). The fan will run in "on" position. I suspect the timer (or maybe a limit switch if there is one) on the fan control board. Does anyone know where I can get a schematic for the Lennox BCC2 fan control board? Thanks...

Blower won't come on in cooling, fine in heat [ 2 Answers ]

Hi I am new here, I had a honeywell programmable, I replaced it with a RITETEMP programmable. It is working great in the heat mode but, I switched it to cool and the blower won't come on though the unit outside is working and evap is almost iced over. The blower works in heat and in the on...

HEAT-OFF-COOL system switch - AUTO-ON fan switch [ 1 Answers ]

From an Email: ''Dear asklabman, I am a first time house ownere & having an issue with my Honeywell T8112 Programmable Thermostat. Thermostat has two switches for the fan - AUTO FAN & FAN ON switches and three switches for thes system, COOL, HEAT & System OFF modes. Yesterday we turned ON...

HEAT-OFF-COOL system switch - AUTO-ON fan switch. [ 2 Answers ]

Dear Gurus, I am a new house owner & not used to thermostats. We have Honeywell 8112D thermostat. We recently turned ON our Fan switch (in the thermostat). Now the fan is not turning off. It is continuously running even when the system is in OFF & Fan is in AUTO mode. We tried reducing the...

Intermittent blower on a/c only, works fine with heat [ 2 Answers ]

I have a 1997 or 98 Coleman Natural Gas Furnace with A/C. The blower works fine during the winter when I use heat. When I use the A/C, it seems that once the blower starts working for a bit on a hot day, it evetually (if on for more than 10 minutes at a time or so) starts kicking on and off while...

View more questions Search

Check out some similar questions!

Add your answer here.