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-   -   Help with Air Handler and Aux Heat (http://www.diychatroom.com/f17/help-air-handler-aux-heat-29428/)

kulkarni_ash 10-05-2008 02:31 PM

Help with Air Handler and Aux Heat
 
Hi
I have an Ducane Heat Pump and ADP air handler with 5KW backup heat module inside this Air Handler,
I suspect this backup heat module is not working, my house gets warm when out side temp is above 40 or above,
But when temp gets cold, heat pump is working but house does not get warm, it struggles to get to 70, i see AUX in the thermostat indicating Aux heat is on, but i don't get extra heat, also when i put the thermostat to emergency heat all i get is cold air.
How do i make sure Aux heat is working?

Ash

chris75 10-05-2008 02:42 PM

Quote:

Originally Posted by kulkarni_ash (Post 168619)
Hi
I have an Ducane Heat Pump and ADP air handler with 5KW backup heat module inside this Air Handler,
I suspect this backup heat module is not working, my house gets warm when out side temp is above 40 or above,
But when temp gets cold, heat pump is working but house does not get warm, it struggles to get to 70, i see AUX in the thermostat indicating Aux heat is on, but i don't get extra heat, also when i put the thermostat to emergency heat all i get is cold air.
How do i make sure Aux heat is working?

Ash


Check for breakers and any disconnects that may be in the off position.

kulkarni_ash 10-05-2008 04:20 PM

Hi
I did see the breakers in fuse box, all of them are in On Position, there is a weird thing, in fuse box in garage, no breaker shows the Air Handler and Backup heat strip written on the box, i have moved in here 2 years ago and have no idea of the wiring,
Is there a way i can find out which one would be for the heat strip, do i turn each and every one off and try to see when the Air Handler does not come on.
Should the air handler and heat pump along with the backup heat strip be on one breaker or on more then one

chris75 10-05-2008 06:10 PM

Quote:

Originally Posted by kulkarni_ash (Post 168673)
Hi
I did see the breakers in fuse box, all of them are in On Position, there is a weird thing, in fuse box in garage, no breaker shows the Air Handler and Backup heat strip written on the box, i have moved in here 2 years ago and have no idea of the wiring,
Is there a way i can find out which one would be for the heat strip, do i turn each and every one off and try to see when the Air Handler does not come on.
Should the air handler and heat pump along with the backup heat strip be on one breaker or on more then one

More than likely the heat strips will be a different circuit than the air handler.

8 Ball 10-06-2008 04:35 AM

Is there a disconnect or switch at the air handler? Do you or someone you know have a multimeter and know how to use it? There may be a manual limit tripped at the heater, but before you open any panel you need to turn off the power, the heater is probably a double breaker 220v..

kulkarni_ash 10-06-2008 08:05 AM

Hi
I have a multimeter at home, and there is switch in front of Air Handler,
dont know if it is used to turn off and turn on Air Handler or Heat Strip.
i think the switch has 30 written on it,
I did one test, with the meter
When the Heat Pump + air handler is working the meter runs for about 10 seconds for 1 circle
When thermostat is showing AUX , now it is Heat Pump + Air Handler + AUX then it take 6 seconds to complete circlet
When i put it to emergency heat, there is no increase in meter, it is goes slow, slower then Heat Pump + Air handler setting.

But i dont get any additional heat when it is on AUX heat.

My House is about 1100 sq ft, with decent insulation, and Heat Strip is for 5 KW.

Any ideas


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