AC/Heater Aircon compressor not kicking in

Lee H · 1st August 2012, 14:43

Bought my FN2 this weekend knowing there was a problem with the air conditioning thinking it might be the common faulty relay. I have today bought the new relay from Honda and fitted it and there is no difference.

The compressor or fans are not kicking in like they used to do on my EP3.

Is there anything I can test to identify where the problem lies?

If the aircon needed a regas I assume it wouldn't stop the compressor kicking in?

Cheers

Lee

Booboo · 1st August 2012, 16:41

Yes it would stop it as it has low & high pressure sensors in the system to protect the compressor.

Ron240 · 1st August 2012, 17:33

It sounds logical that the compressor would not kick in if the system was very low on pressure, but when mine was checked before regassing a few months ago, i was told there was very little refrigerant left in the system, but at that time my compressor was working fine.

About 6 weeks later i noticed my compressor was no longer working. The system had not lost any pressure, new relay fitted and fuses ok.
As i said in another thread, i decided that as it was most likely not going to be a cheap fix, i accepted that i was never again going to have working air conditioning on this car while i still owned it.

pigdog · 1st August 2012, 18:36

If you need a new air con unit mate, give me a shout. I took the whole air con out of my car last month, everything including unit, rad and piping. Never used as I hate the things.

p64 · 2nd August 2012, 13:17

You can test the field coil, which engages the clutch. Disconnect the connector on top of the alternator and apply 12v directly from the battery to the side which leads down to the compressor. If nothing happens it is the field coil or the thermal protection (not likely). Very common fault.

Andrej

stackerman · 2nd August 2012, 14:37

pressure is a good guess mine was topped up to much and didnt work though it was shagged but after 6 mths it kicked in again must have lost a bit of excess gas

abs-civic · 4th August 2012, 02:46

I've had the same a/c problems, compressor does not seem to be kicking in. Had a diagnostics done at an independant garage and it threw these error codes;

B1225
B1235
B1238
C2800

They seem to relate to climate control issues. Mechanic said I will require a new/used a/c compressor. So if anyone has one lying around I will be interested.

Lee H · 4th August 2012, 16:31

Just had the system regassed and all working fine now. Ran a few tests on the car and came to the conclusion that the system just needed gas.

He added some uv dye so if it does stop working we can find the leak.

Ron240 · 4th August 2012, 19:34

Thats a good result Lee, a quick and easy fix, you will be very pleased.

Im assuming whoever regassed it done a pressure test to make sure there were no obvious leaks in the system, at least in the short term anyway.

I wish that was all that was wrong with my system.....

Lee H · 4th August 2012, 21:15

Yes, did a pressure test and a vacuum test and all seems fine. Guessing it was never regassed after its accident. In the first instance he just added the tiniest bit of gas and the compressor kicked in straight away.

Another one chalked off the to do list now.

abs-civic · 14th August 2012, 21:43

A/C now working after replacing the compressor, regassing and a new relay from Honda.

Ron240 · 14th August 2012, 22:24

Post no longer needed, please delete.

1st August 2012, 14:43	#1 (permalink)
Lee H Supporter Car: 2007 CTR NHB Join Date: 29th June 2009 Location: Manchester, UK Posts: 39 Thanks given: 1 Thanked 1 Time in 1 Post iTrader: (1)	Aircon compressor not kicking in Bought my FN2 this weekend knowing there was a problem with the air conditioning thinking it might be the common faulty relay. I have today bought the new relay from Honda and fitted it and there is no difference. The compressor or fans are not kicking in like they used to do on my EP3. Is there anything I can test to identify where the problem lies? If the aircon needed a regas I assume it wouldn't stop the compressor kicking in? Cheers Lee

14th August 2012, 21:43	#11 (permalink)
abs-civic Supporter Car: 2006 2.2 EX, NHB Join Date: 8th November 2011 Location: Bedfordshire UK Posts: 1,147 Thanks given: 80 Thanked 108 Times in 106 Posts iTrader: (5)	Aircon finally working A/C now working after replacing the compressor, regassing and a new relay from Honda.

14th August 2012, 22:24	#12 (permalink)
Ron240 The Ronda Car: 2008 1.4 SE+ Vivid Blue Join Date: 20th October 2010 Location: Fife(not a native) Posts: 1,213 Thanks given: 62 Thanked 102 Times in 98 Posts iTrader: (2)	Post no longer needed, please delete. Last edited by Ron240; 14th August 2012 at 22:28.

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1st August 2012, 16:41	#2 (permalink)
Booboo Supporter Car: 2007 FN2 Type R GT DMB Join Date: 12th September 2011 Location: Burton-on-Trent, UK Posts: 764 Thanks given: 55 Thanked 80 Times in 74 Posts iTrader: (1)	Yes it would stop it as it has low & high pressure sensors in the system to protect the compressor.

1st August 2012, 17:33	#3 (permalink)
Ron240 The Ronda Car: 2008 1.4 SE+ Vivid Blue Join Date: 20th October 2010 Location: Fife(not a native) Posts: 1,213 Thanks given: 62 Thanked 102 Times in 98 Posts iTrader: (2)	It sounds logical that the compressor would not kick in if the system was very low on pressure, but when mine was checked before regassing a few months ago, i was told there was very little refrigerant left in the system, but at that time my compressor was working fine. About 6 weeks later i noticed my compressor was no longer working. The system had not lost any pressure, new relay fitted and fuses ok. As i said in another thread, i decided that as it was most likely not going to be a cheap fix, i accepted that i was never again going to have working air conditioning on this car while i still owned it.

1st August 2012, 18:36	#4 (permalink)
pigdog aka Colin Car: 2008 CTR GT, Black Join Date: 19th April 2008 Location: Dublin, Ireland Posts: 8,021 Thanks given: 626 Thanked 869 Times in 832 Posts iTrader: (6)	If you need a new air con unit mate, give me a shout. I took the whole air con out of my car last month, everything including unit, rad and piping. Never used as I hate the things.

2nd August 2012, 13:17	#5 (permalink)
p64 Ezermester Join Date: 3rd July 2007 Location: MS Posts: 146 Thanks given: 0 Thanked 10 Times in 9 Posts iTrader: (0)	You can test the field coil, which engages the clutch. Disconnect the connector on top of the alternator and apply 12v directly from the battery to the side which leads down to the compressor. If nothing happens it is the field coil or the thermal protection (not likely). Very common fault. Andrej

2nd August 2012, 14:37	#6 (permalink)
stackerman IF SHE SMOKES SHE POKES Car: 2007 Type S GT 2.2 Join Date: 23rd September 2010 Location: wigan Posts: 474 Thanks given: 0 Thanked 13 Times in 12 Posts iTrader: (-1)	pressure is a good guess mine was topped up to much and didnt work though it was shagged but after 6 mths it kicked in again must have lost a bit of excess gas

4th August 2012, 02:46	#7 (permalink)
abs-civic Supporter Car: 2006 2.2 EX, NHB Join Date: 8th November 2011 Location: Bedfordshire UK Posts: 1,147 Thanks given: 80 Thanked 108 Times in 106 Posts iTrader: (5)	I've had the same a/c problems, compressor does not seem to be kicking in. Had a diagnostics done at an independant garage and it threw these error codes; B1225 B1235 B1238 C2800 They seem to relate to climate control issues. Mechanic said I will require a new/used a/c compressor. So if anyone has one lying around I will be interested.

4th August 2012, 16:31	#8 (permalink)
Lee H Supporter Thread starter Car: 2007 CTR NHB Join Date: 29th June 2009 Location: Manchester, UK Posts: 39 Thanks given: 1 Thanked 1 Time in 1 Post iTrader: (1)	Just had the system regassed and all working fine now. Ran a few tests on the car and came to the conclusion that the system just needed gas. He added some uv dye so if it does stop working we can find the leak.

4th August 2012, 19:34	#9 (permalink)
Ron240 The Ronda Car: 2008 1.4 SE+ Vivid Blue Join Date: 20th October 2010 Location: Fife(not a native) Posts: 1,213 Thanks given: 62 Thanked 102 Times in 98 Posts iTrader: (2)	Thats a good result Lee, a quick and easy fix, you will be very pleased. Im assuming whoever regassed it done a pressure test to make sure there were no obvious leaks in the system, at least in the short term anyway. I wish that was all that was wrong with my system.....

4th August 2012, 21:15	#10 (permalink)
Lee H Supporter Thread starter Car: 2007 CTR NHB Join Date: 29th June 2009 Location: Manchester, UK Posts: 39 Thanks given: 1 Thanked 1 Time in 1 Post iTrader: (1)	Yes, did a pressure test and a vacuum test and all seems fine. Guessing it was never regassed after its accident. In the first instance he just added the tiniest bit of gas and the compressor kicked in straight away. Another one chalked off the to do list now.