Heating, Air Conditioning, Fridge, HVAC/No heat from a Lennox heat pump

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Question
I read a few postings from people with heat pump issues and I have one or two issues too. My Lennox ESeries (Model E12Q3-15-1)32 year old heat pump doesn't heat up the air no matter how long it runs. The blower and thermostat work okay but the air supply temp(today it's 61)is always the same as the return temp. Could it be that the R-22 is not charged properly because I noticed that the evaporater coil on the inside unit is always cold in heat mode? or Could it be something more like that one or more of the heat elements or thermal fuses need to be replaced? What do you think is the most likely culprit. Thank you.

Answer
David,

Your compressor is not running,( bound up,open internal overload, bad run capacitor, etc.  even thou outdoor fan runs, ) you tripped a low pressure control ( due to no or extremely low refrigerant in system keeping compressor off ) Your electric heat element is not energizing due to broken heater element(s), thermal overload tripped,or heat sequencer is not energizing heater elements due to defective heat sequencer or no 24 volt ac power feeding heater relay coil. If your t-stat has an emergency heat setting put it in emt. or aux. heat setting to see if your electric heat works. If your not mechanically / electrically inclined better off calling for service. 32 years is an outstanding run for a Heat Pump.

Heating, Air Conditioning, Fridge, HVAC

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Joe

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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.

Experience

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.

Education/Credentials
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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