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View Full Version : American Standard/ Trane TWg048a140b1 -circuit board ??


gorillames
06-19-2011, 08:21 AM
Need to replace the (circuit, defrost control??) Board in my air handler, cannot find any information on the name of this board and/or how I can purchase a new one..

Any info ?
KB Cool
06-19-2011, 10:54 AM
Need to replace the (circuit, defrost control??) Board in my air handler, cannot find any information on the name of this board and/or how I can purchase a new one..

Any info ?

There's no defrost control board in that A/H. Sorry!
gorillames
06-19-2011, 11:26 AM
I cannot seem to locate the board anywhere when I google the model #
do you know what the name of the board is?
I'm thinking time delay relay??
icoolfla
06-19-2011, 11:35 AM
is the evap coil freezing? did the blower stop working? is it a variable speed blower?
KB Cool
06-19-2011, 11:51 AM
I cannot seem to locate the board anywhere when I google the model #
do you know what the name of the board is?
I'm thinking time delay relay??

It's a fan manager. If you know what you are doing you can get by without it.
gorillames
06-19-2011, 01:57 PM
Icoolfla....No to all the questions...

The air handler is not sending out the 24 volts to the compressor, we checked the relay switch and all good in the condenser .. 24 volt Ac available but not 24 volt dc
KB Cool
06-19-2011, 02:03 PM
Icoolfla....No to all the questions...

The air handler is not sending out the 24 volts to the compressor, we checked the relay switch and all good in the condenser .. 24 volt Ac available but not 24 volt dc

It's not the A/H's job to send 24 out to the compressor. You don't know what your doing. Time to call a pro.
gorillames
06-19-2011, 05:55 PM
pcb trips contactor to compressor
No dc voltage sent to contactor
timebuilder
06-19-2011, 06:40 PM
Looks like DIY to me.
dunkman
06-19-2011, 06:53 PM
Need to replace the (circuit, defrost control??) Board in my air handler, cannot find any information on the name of this board and/or how I can purchase a new one..

Any info ?

Here's what needs to happen. Call a Trane dealer, give them your model#, serial#, they'll look up the part number and hand you one, you pay them $$, you put it in, it still won't work, you're stuck with the part because there's no returns on electronics, then you call a pro to look at it, he'll come out and fix it then you pay $$$. Problem solved.
timebuilder
06-19-2011, 07:35 PM
No dc voltage sent to contactor

Hmm. You are looking for a DC voltage, eh?
jimj
06-19-2011, 08:56 PM
Hmm. You are looking for a DC voltage, eh?

Mite be looking for a long time! LOL