Question about Amana Heating & Cooling
Heater working AC not cooling
On most ptac they have electric heat so there is seperate controls for cooling it is possible a contactoer or compacitor
Posted on Mar 30, 2013
If no blowing air is coming out to your ac or evaporator fin,your blowing fan is not working.There are several factor to check qualified electrician or ac techician should do this.If you have knowledge on electricity and motor control,beside you should have clamp ammeter to use in trouble shooting of ac electrical circuit.Unplug your ac If there is an opening of blower fan of your ac mostly the top cover open this one locate the wire connection of blowing fan take the color and size.Open the terminal box below the control panel of ac and locate the wire of blowing fan.Check how many leads make sure to make sketch where it was connected from low,medium, and high there is coded color on it,discannect from the terminal, using clamp ammeter set to ohms probe setting R10 check continuinity of winding motor start at common lines(mostly balck color) of one test rod and the other to starting line(mostly red color)take and read the resistance if has a higher resistance your motor is burn out, also with the running line w/c has multple line for speed.If resistance complied to your motor rating or good,If not or burn out replace fun motor.Check your capacitor,doing this set your ohmeter to a higher resistance,connect one red test rod (+) one terminal of capacitor and one black test rod on (-)the other terminal the pointer will deflect steady to higher resistance then reverse the connection of the test rod,the pointer deflect again to higest resistance it will go slow backward setting to zero if you got this result your capacitor is good.But if it does not go set back to zero your capacitor is short.Replaced capaciter.
Posted on Mar 13, 2009
The reset button is located behing a panel on the front of the unit that is labeled Heat Reset. If that label is gone then look around, it is a small hole, small enough for a paper clip to fit through.
That being said, I have 137 of these units in one of my hotels and have not had a single one needing to be reset. You probably are going to need a new control board kit. These can be purchased from Amana. They are $130. Make sure that you have pulled the heater coil out and inspected it first. Also, there was a recall years ago where Amana was supposed to contact and send out new voltage switches. These are the round black things that the Brown heater wires connect to on the upper and lower side of the heating coil. You should also try to replace those if you find the coil in good condition. I have had those resolve heating issues. Most of the heating issues were a result of a bad relay on the control board though.
Please remember to rate this fix.
Posted on Feb 12, 2009
open the service panel to check for control voltage of 24volts when tstat calling, The contactor should be pulled in, if contactor is down,and contacts appear to be clean, and the unit is still not running, it is a bad compressor. to test this unplug the black wire from the compressoror at contactor,w/ power off! Turn on power if fan works normally it's a bad compressor. However if you see a swollen split cap(5 wires to a soup can looking w/ the terminal C,F,and Comp), switch it first and start at square one.
You also need to consider the high pressure switch if its cycling on off on off.
Posted on Mar 12, 2009
I have a Amana PTAC Model PTH153A50AC with the DigiSmart upgrade kit (DSUK01B) which as of last night stoped generating heat. I tried the Diagnostic and got a "LF" displayed. But I find no reference to what LF means. HELP please. Also I looked but can't find a reset button either.
House without heat
Posted on Jan 31, 2010
SOURCE: amana ptac ac turn on
If this unit has the old style control with the knob instead of the digital control panel
then I would suspect this first. This is the first component to fail on these units. I have
replaced two already and the kit has good instructions and all components.
Takes approximately an hour to do and mount the new sensors. (The transformer is
hidden beneath the sheetmetal just below the control board). You should be able to order this kit through any appliance parts store for around 175 dollars versus almost
800 dollars for a new PTAC. Hope this is helpful.
Posted on Jun 26, 2011
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