Air Conditioning & Heat Pump diagnosis & repair Q&A #6.

This article series helps diagnose and fix problems with air conditioners & heat pumps can help troubleshoot various operation and control problems like a blower that won't stop or lost cooling.

A/C & Heat Pump Troubleshooting FAQs-6

These questions & answers about diagnosing trouble with air conditioners and head pumps were originally posted at AIR CONDITIONING & HEAT PUMP SYSTEMS

A good place to look for diagnostic procedures is DIAGNOSTIC GUIDE A/C or HEAT PUMP.

On 2019-02-27 16:06:09.450697 by (mod) -

Thank you for an interesting question Gary.

What you can do is ask the heat pump or air conditioning service technician to measure the current draw at the compressor units to see if there's an abnormal behavior indicating that there's something wrong with the equipment.

On 2019-02-27 15:45:27.406415 by Gary

My daughter lives in a 3 year old apartment with two Heat Pumps mounted in the outside walls below her picture windows. One heat pump is in her small bedroom and the other one is in her living room/kitchen area and runs the most I believe.

Her electric bills the past two months have gone through the roof, I am wondering if one of the heat pumps might be the cause? If so, how might I diagnose the problem and determine which heat pump is the cause.

Details: It is mid-winter here in NJ but the temperatures have not been too bad, a mild winter, very little snow. During past winters, her electric bill has ranged around $30 to $50 max. per month. However, her last month's electric bill was $65 and her current electric bill jumped to $103! Her usage of her TV, lights, refrigerator and microwave remain constant and doesn't explain her much higher electric bills the last two months.

She keeps her Thermostats on each Heat Pump always set at 72 degrees.

I just learned that heat pumps might have an electric back-up heater built into them that comes on when the outside temperatures drops too low for the main Heat Pump Function to operate well to give sufficient heat inside. Might one of my daughter's heat pumps be malfunctioning resulting in higher usage of electricity and higher electric bills?

I can envision that if the main heat pump with its freon is not working or not working well, then the built-in back-up electric in the heat pump might be kicking in and doing all or most of the heating at a much higher cost.

Is my theory correct and if so, how might I diagnose the heat pump to verify the problem before calling and paying for a Heating and Cooling Repair Company or bothering the landlord to do the same?

On 2019-02-20 by (mod) - unwanted airflow restriction is added by the louvered door

I cant say accurately, Kenneth, just how much unwanted airflow restriction is added by the louvered door in front of your air handler return opening, but here are a couple of reference points:

For two openings of equal size, louvers on one of them will cut the airflow there by about 33% or more depending on louver details like angle, thickness, and spacing.

So if the opening in your door do the air handler is just about the size as the opening on the air handler itself, that door is probably cutting return air flow, increasing operating cost, and in some installations may also be unsafe.

On 2019-02-20 by Kenneth

i have a indoor air handlers for a heat pump installed in closet with a lover door is there enough air flow for

On 2018-10-04 by (mod) - indicater shows 10 degrees warmer than actual temp

So you might want to look for something around the thermostat or the thermostat location itself that would make it read so far off from room temperature.

Remember that the thermostat is only reporting the temperature that it Senses at its location.

On 2018-10-03 by Don Denman

Heat pump runs makes house very cold but temp indicater shows 10 degrees warmer than actual temp

On 2018-07-11 by Anonymous

l have a clog up heat pump air conditional,could someone tell me how to fix it

On 2018-06-26 by (mod) -

if your system is switching to heating mode and you're not calling for heat I suspect there's a control board problem

your service tech will probably rule out a deicing cycle.

On 2018-06-25 by Jackie

I have a heat pump and it periodically blows warm air in AC mode, this happens several times a week. If I turn tje unit off for about 15 mi utes and then back on it works fine. We've replaced rhe brackers and fuses, it has clean filters and the compressor is running. Please help!

On 2018-05-26 by (mod) - A/c heat pump wont turn on

See AIR CONDITONER WONT START https://inspectapedia.com/aircond/Air_Conditioner_Wont_Start.php

On 2018-05-26 by Lois

A/c heat pump wont turn on

On 2018-05-25 by (mod) -

Lisa I'm not sure which fan - condenser unit or air handler unit - you're asking about. Use the search box just above to find our articles diagnosing

AC FAN WON'T RUN for more help

On 2018-05-25 by Lisa

I have a lennox elite ac. It is only 3 years old. Large fan not spinning.

On 2018-02-06 by (mod) -

Check out the Emerson website at Everson., and you will see the company description, business areas, and current Focus. Emerson is not carrier.

On 2018-02-05 by Sierra H

Does anyone know if a brand new Carrier HVAC unit out of box would have a Emerson Blade and and Emerson Cylinder in the center of outside unit ?

I recently had a new home built and my Carrier A/C and furnace does but the company that built our home says lots of companies have off brand names and I haven’t heard of Emerson being part of Carrier and neither has the internet.

I already feel like they’re trying to pull a fast one on us by the poor workmanship on my home in the first place and if this isn’t really a carrier brand new unit, I’m lawyering up and going to take the builders to court. Please someone help me .

...

Continue reading  at DIAGNOSTIC GUIDE A/C or HEAT PUMP or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see these

HVAC repair guides

• AIR HANDLER / BLOWER UNITS - home
• COMPRESSOR / CONDENSER REPAIR - home
• DIAGNOSTIC GUIDE A/C or HEAT PUMP
• DIAGNOSTIC DETAILS A/C or HEAT PUMP
• AIR CONDITIONING & HEAT PUMP SYSTEMS - home

Suggested citation for this web page

AIR CONDITIONER DIAGNOSTIC FAQs-6 at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

Or see this

INDEX to RELATED ARTICLES: ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS

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