condensation unit wont start! - http://www.hvacmechanic.com/ Forums
Original message
| inneedofhelp
 |  "condensation unit wont start!"
, posted Thu 17 Jul 20:37  
Hey guys, my capacitor on my condensing unit went, so I replaced it. I checked the contact to make sure it turns on correctly and it does. However, the thermostat will not turn the unit on and the blower is constantly on when I turn the breaker on regardless of the thermostat. Any help on what could possibly be the cause of this would be greatly appreciated. I have a trane unit and I think the last guy who replaced the blower motor may have rewired something incorrectly. It worked fine for about a year.
much appreciated!!
|
|
Replies:
|
| Houston204
| "Re(1):condensation unit wont start!" , posted Thu 17 Jul 21:40
Is this a gas or electric furnace?
Do you have 24 volts between R to C (C is probably labeled B) at your furnace?
"Tip of the Day" Remember to remove power first.
|
| | inneedofhelp
| "Re(2):condensation unit wont start!" , posted Thu 17 Jul 22:01
It is electric. and yes I have 24V. I know the ltv use to have kind of like a 18 pin jack that use to go from the old motor to the ltv and pins 1 and 9 were orange and blue with the rest white I believe it had something to do with the fan control as far as the blower motor goes now it looks like a capacitor was added I have a red and a blue not connected to anything and black is to black and green is grounded and one more i dont remember the color whether its orange or yellow connected to a red. And the blower stays on constantly when the breaker is switched on. Now before I replaced the capacitor on the condensing unit which is all I did, the condensing unit came on (Trane xr12)Now it only turns on when the contact is pushed in manually.
much appreciated!!
|
| | Houston204
| "Re(3):condensation unit wont start!" , posted Thu 17 Jul 22:50
Did you measure for 24 volts, or just assuming it.
Do you get 24 volts to the outdoor unit?
Is this a heat pump?
"Tip of the Day" Remember to remove power first.
|
| | inneedofhelp
| "Re(4):condensation unit wont start!" , posted Sun 20 Jul 13:06
Sorry I was mistaken about the 24V. No I was not getting 24V at the condensing unit Nor was the transformer converting any Low Voltage the Input had the 208 and there was no output. Do I just need to replace the transformer or is there something else that may have also caused the transformer to go.
Thanks...
much appreciated!!
|
|
|
|  |
|
