I have an amana ptac unit that the heat will not come on I have taken control board from a known working unit and still nothing control board works on other unit , unit has label for manuel heat reset ,where is this located?I have an amana ptac unit that the heat will not come on I have taken control board from a known working unit and still nothing control board works on other unit , unit has label for manuel heat reset ,where is this located?
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First check for 240 volts on black and white at the motor. Yes it must be on and calling. Yes its dangerous and you should call a professional. If 240 present then check on the speed harness for 24 volts between any of the terminals. If both voltages present, bad motor. Very common for these motors to fail, if blade spins freely and module is separate you can likely just replace module.
If just your outdoor unit runs all time your contactor my be stuck closed.if this is caseturn off high volts to both in snd out door units.look inside out door unit control panel if contactor is pulled in it that is your problem some times taping cantact gently will unfreeze it .if this is not problem and both in and out are RUNNING all time you have low voltage problem s I would start at airhandler
You must wire Orange from heatpump low voltage wire to gether with your yellow s and you must have a common wire usealy common comeing out of heatpump should be black color than what ever color wire you have connected to common at t-stat and airhandler connect that to black wire at heatpump. To make sure blablack I s common follow wire up to board and it will be connected to C terminal now you will have ac all time. If you want heat remve Orange wire from reds at heatpump and you will get heat only.note when doing your wireing make sure high voltage is off to heatpump and airhandler hope this helps
You have to go to your indoor unit its called a airhandler check high voltage going to unit should be 240volts .if you have 240volts look to see if there is a fuse either on the board or in line it will look like a car fuse 3amp or 5 amp check if fuse is blown but before checking make sure you pull disconnect so you dont have any high voltage going to unit. If fuse is blown get same exact fuse auto parts store will have them replsce put stab back in diconnect unit should run .if there is no fuse in airhandler keep high voltage on go to transformer and check for low voltage comeing out of transformer .NO 24 volts comeing out .replace transformer.if you have 24 volts comeing out of transformer check low voltage wireing thermostat wireing one goes to thermostat and other goes to out door heatpump usealy Brown in color and will have 8 small different colors wires inside brown jacket. Check for 24volts between red wire and common should be blue color if it is color coded. If no voltage there is a break in red or common wire.or sometimes just wirenuts need to be retightin.also when checking for low voltage one leed must be on common and other lead goes to red.also with high voltage off take face off thermostat carefully make sure all connections are TIGHTEN. This will also so you witchcolor wire is common it will be connected to C terminal hope this helps.note must have 24volts red and common or t-stat will not light up.hope this helps
It sounds like you have a problem with your wiring. You have to make sure that all signals are complete through out wiring. Ex. Y goes to the outdoor unit on usally yellow, G goes to the g signal on the airhandler, W goes to he w signal in the airhadler and outdoor unit. O/B goes to the oudoor unit, R goes to outdoor and airhandler, C goes to outdoor and Airhandler. Check your wiring and also make sure you have the correct thermostat, meaning you have a heatpump thermsotat.
There is a low voltage wiring problem. Make sure your t-stat wire is in the correct positions and that you have not removed the jumper wire at the t-stat. There should only be 2 control wires leaving the airhandler and going to the condenser unit outside. Unless it is a heatpump. One wire goes to common and the other goes to the Y terminal. W terminal is for heat. The unit will cut off if you have the unit calling for heat and cool at the same time.
I have an amana ptac unit that the heat will not come on I have taken control board from a known working unit and still nothing control board works on other unit , unit has label for manuel heat reset ,where is this located?
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