AC furnace blower kick on and off after 5s
#1
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AC furnace blower kick on and off after 5s
I have a goodman awb24-08d furnace.The furnace has been working fine all winter. I recently turned on the A/c for the summer but the fan kicked on for 5s then kick off.I then went to the thermostat and try to manually turn on the fan but the Auto/on switch kick the fan on for 5s then off.If I turn the heat on the fan works perfectly.I just replaced the board control and blower capacitor.I have some pics.In the pic i disconnected NO and NC wire for test.Can anyone help?
http://imgur.com/a/sumPO
http://imgur.com/a/sumPO
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#3
As you can see in the wiring diagram in heat mode the fan is started by the heat sequencer and in cooling mode the stat starts the blower. Do you have a voltmeter?
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Thanks for replying
I do have voltmeter.In the cooling mode i hear the sequencer kick the fan on and then kick off.Is it not normal?.And i just replaceed new t-stat
I do have voltmeter.In the cooling mode i hear the sequencer kick the fan on and then kick off.Is it not normal?.And i just replaceed new t-stat
#5
Set your stat to call for cooling and put your meter on G and C on the broad. You should have 24 volts.
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I checked the volt on C and G on the furnace control board.It showed 28v.It is a little higher than you said 24v.May i have bad sequencer?
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