When furnace is in heat mode running in stage 2 the blower will be running on high, then just shuts down to no blower, then the blower will ramp up to full speed. this may happen 2 or 3 times during 1 warm up cycle. blower work good during first stage.Post created: 2012-11-15 Type of Equipment: Furnace Views: 165
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Blower ramps up and ramps down during first stage operation. problem only there during second stage.
On 2012-11-16 JB wrote:
You will need to speak with an HVAC tech to get a good answer as to whether this is normal or a sign of a problem.
Best of luck!