DIYbanter - View Single Post - Blower and Ac Compressor won't stop running

wrote:

This is a 3 year old home. Tempstar furnace and ac unit with a White
Rogers thermostat.
Last night we noticed the unit blowing cold air. I found the Ac
running.The gas is cycling when the house temp falls below the set
limit. I pulled the breaker on the Ac to stop the compressor. The
blower still runs constantly with the gas cycling as required. Any
suggestions on additional trouble shooting. I'd like to narrow it down
either to the thermostat or the main unit.

The outside condenser blower or the inside furnace blower.
If the condenser blower motor is grounded it can run at a low speed
constantly.

Many things can cause the indoor blower to run constantly, --depends on
the furnace and the various blower control components.
Is the RM TH fan switch in the off position?
- udarrell

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PROPER A/C UNIT & DUCT SIZING ESSENTIAL for EFFICIENCY & BTUH PERFORMANCE
http://www.udarrell.com/proper_cfm_b...syste ms.html