A/C works great...when it blows!
08-26-2016, 05:23 PM
#1
Newbie
Thread Starter
A/C works great...when it blows!
I've searched but have not been able to find an answer to the issue I am having. The A/C works perfectly 80% of the time but some days the blower will not come on. Today it's in the low 90's and it's been working great all day without issue. When the blower fails to come on you can hear the hissing in the dash but the blower just refuses to operate. When this issue began a few months ago a good bump in the road usually would cause it to kick on but lately that has not worked. We have not had to have the A/C serviced so the system has not been touched for a few years. I just ran the codes over a 5 minute period after the car had been sitting in the sun for about an hour.
1 - 85 82 80 78
2 - 100 107 105 111
3 - 49 49 49 49
4 - 49 49 49 49
5 - 44 46 44 49
6- 184 186 186 186
7 - 17 17 17 18
8 - 127 129 129 132
Eb 1231 ECT - engine coolant temperature
Eb 1234 sun sensor
Eb 1416 coolant circulation pump
E FF
Will any of the 3 above cause the intermittent blower issue I am having? An input is appreciated!
1 - 85 82 80 78
2 - 100 107 105 111
3 - 49 49 49 49
4 - 49 49 49 49
5 - 44 46 44 49
6- 184 186 186 186
7 - 17 17 17 18
8 - 127 129 129 132
Eb 1231 ECT - engine coolant temperature
Eb 1234 sun sensor
Eb 1416 coolant circulation pump
E FF
Will any of the 3 above cause the intermittent blower issue I am having? An input is appreciated!
08-26-2016, 09:35 PM
#2
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1922 Ford Model T / no OBD
Erase the codes and recheck next day.
You can ignore other 2, but if engine temp sensor error comes back, you need to address it to before drawing more conclusions.
You can ignore other 2, but if engine temp sensor error comes back, you need to address it to before drawing more conclusions.
08-26-2016, 10:52 PM
#3
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A blower/issue is a blower/issue - blower is independent of the rest of the aircon system -
Which tends to lead either to the blower regulator or the blower itself.
Do a foum search here of the "other" forum..
Keep the beat !
Which tends to lead either to the blower regulator or the blower itself.
Do a foum search here of the "other" forum..
Keep the beat !
08-26-2016, 11:23 PM
#4
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1922 Ford Model T / no OBD
Reading again how the blower comes on/off on road bumps, short motor brushes come to mind.
Knowing mileage would help with suggestions.
Knowing mileage would help with suggestions.
08-29-2016, 07:32 AM
#5
Out Of Control!!
Just to correct the mis information of mr fabulous and polak *****, the blower regulation is not, repeat not independent of the rest of the AC system.
The AC control module,in auto mode reads the inside temp,outside temp and sun sensor before establishing the voltage sent to the blower regulator and therefore are apart of the AC system.
Change the blower regulator--volia and be watchful of spammers and their misinformation!!
The AC control module,in auto mode reads the inside temp,outside temp and sun sensor before establishing the voltage sent to the blower regulator and therefore are apart of the AC system.
Change the blower regulator--volia and be watchful of spammers and their misinformation!!
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gbloods (08-30-2016)
08-29-2016, 08:33 PM
#6
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1922 Ford Model T / no OBD
I wonder if Plutoe has idea what are blower motor brushes. 
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08-31-2016, 11:15 AM
#10
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1922 Ford Model T / no OBD
I still would not rest the case.
Regulators don't come on and off with impact.
Chances are - it was bad connection that got moved on regulator replacement, but things like that like to come back after some time without proper fix.
Regulators don't come on and off with impact.
Chances are - it was bad connection that got moved on regulator replacement, but things like that like to come back after some time without proper fix.
09-07-2016, 07:44 PM
#11
Newbie
Thread Starter
Okay...so the blower motor failed to turn on when we started a 6 hour drive home on Labor Day. It turned on after hitting a bump in Atlanta 5 minutes from home! Check connections at the motor and replace the brushes?
