Heating, Air Conditioning, Fridge, HVAC/Heat Pump / Thermostat issue


I have a gas-fired heat pump on my roof and, although the fan is working, the air coming in the bedroom vents doesn't seem to be hot or even warm.  That's one issue, and I assume I'll need a pro to check it out (probably after the holiday weekend).  Fortunately the temperature outside in Baltimore tonight is not very cold, and we have electric heaters to help keep the inside of our house warm.

But the main issue I'm hoping to address now is the Honeywell programmable thermostat.  Even though we turned it to Off, the fan is continuing to function and blow air unnecessarily.  I've even taken the thermostat off the wall and removed the batteries, then put it back, with no change.  Any ideas on what can be done to get the fan to stop running, to save on my electricity, since it's not blowing out hot air as desired?  Thanks much in advance!


Are you sure the fan switch is not set to fan ON, if it is the blower fan runs 24/7 needs to be on auto.

You can physically remove the G wire at the thermostat ( as that is what turns the fan off )  and leave it off along with not hooking up the thermostat.

You can just physically shut the breaker for the roof top unit.  

Heating, Air Conditioning, Fridge, HVAC

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40+ years diversified experience.An HVAC/Refrigeration Self Employed Contractor since 1986. NATE Certifield. Answer questions pertaining to Residential and Commercial Air Conditioning , Warm Air Heating, Heat Pump systems.Mechanical and Electrical troubleshooting of these systems.Be as detailed as possible when describing problem.Packaged unit or split systems.No appliance questions.


Installation and Troubleshooting, Mechanical and Electrical, in following areas, Refrigeration ( Walk In and Reach In Coolers and Freezers ) Commercial Roof Top and Packaged Heating/Cooling ( Natural Gas,Propane, Electric, and Heat Pumps ) Computer Room Air Conditoning Systems,Commercial Residential Packaged and Split Systems Air Conditoning and Heat Pumps.Warm Air Oil , Natural and Propane Gas Heating systems.

Graduated from Private Technical School in 1975. An HVAC/Refrigeration Contractor . Have Unlimited Heating/Piping and Cooling Contractor License.Limited Sheetmetal Contractors License.NATE Certifield. York Certifield Master Heat Pump Technician 1986. Served 33 years combination Active Duty Air Force , Air Force Reserves and Air National Guard in the HVAC/Refrigeration Shop/Mechanical Shop. Troubleshooting/Installing HVAC/Refrigeration Equiptment Worldwide. Retiring in 2003 as a Senior NCO ,and a Mechanical Superintendent.

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