Goodman Heat/Air unit Model # A49-20 Serial # 9909502720
Have been running the heat with no problems until today . It ran all night and into the mid day. I then began to smell a burning smell. Like when you turn the unit on for the first time in the winter. I did not find and smoke any where , just the smell.
I took the front panels off and looked for anything that might look burnt. Didn' t find any thing. Blew the dust off and turned the unit back on. Still a strong burnt smell. I set the thermostat to 90 and it ran a few minutes and shut off. The termastat on the wall read 75 degrees when it cut off. It
stayed off for a few minutes and came back on for a few minutes. I have truned all the brakers to the unit off untill I can find some help. Is there anything elese I should do untill I can get some help?
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Re: Goodman Heat/Air unit Model # A49-20 Serial #...
It sounds like the blower motor has burnt up.(the one inside) The unit running for a few minutes then shutting off, is due to the high pressure/temperature safeties. When you removed the panels, did you notice any fan running?
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Seriously depends on what unit you have. Model # & serial #? You can "jump" R to G at the unit. If its a standard Goodman AHU there may be a terminal block or just some wires that were factory installed outside of the unit. R to G will send 24v to the blower relay, sequencer or board (depending on model) energizing the relay and then returning to common. If you have tried that you should ensure you have proper line voltage 220-240vac. at the service breakers on the AHU.
what a heat pump is designed to do is reverse the evaporator inside coil and condensor outside coil. it trys to pick up heat from outside and transfer it inside. they work fairly well down to about 40 degrees ambient then not so good. that is why you have auxillary heat i.e. 15 kw. when it was shaking as you saw the compressor is trying to pump liquid instad of vapor as it's designed to. you either have a control issue or it's overcharged.
Sounds like the heat pump is not running. Check outside to see if the fan is spinning.
Try moving the thermostat to emergency heat and see if that gives you any heat. If it does, then you have heat until you can get a service technician to locate the problem with the heat pump. It could be a wide range if issues from bad thermostat to bad wiring to bad capacitor.
ok...where to start.lol ....the thermostat is just a switch.It will tell the unit to run or not run.if you measure the temp with the heatpump running,the air is warmer than 68 but it feels cool to you because your body is 98.6.The unit will run more often and for longer periods when the temperature drops outside for a few reasons.First,your house has more of a load to heat,meaning you have more heat loss because of the difference in temperatures outside and inside.Second,your heat pump pulls heat from the outside air.The colder the air outside,the less btu's for it to pull.If you have anymore questions firstname.lastname@example.org Hope this helps,Dave