heat and a/c - Pirate4x4.Com : 4x4 and Off-Road Forum

tcmog · 12-09-2008, 09:57 AM

I have a 1998 H1
Heat and a/c fan only works on hi. When you turn the knob from low to hi it does not start blowing until you get to hi. Auxillary unit fan works on
hi and low. Has anyone had the same problem?

stjames151 · 12-09-2008, 06:04 PM

are they on the same switch?

ron b · 12-09-2008, 06:40 PM

the front and rear units/fans use different switches.

Maybe replacing the switch would be an easy solution? Check the HML knowledge base and/or call Dave Breggin at BlueHummer.com -- 303-361-5833

rb

tcmog · 12-09-2008, 07:08 PM

Front and rear units are on separate switches . I dont know why
I mentioned that the rear unit works properly. Before posting
I checked the Html but couldnt find anything. I was concerned that the switch for the front fan required replacing the complete control unit.
I will call dave in the A.M.
Thanks
Tom

tcmog · 12-09-2008, 07:13 PM

My poor proof reading skills
I mean the Hml .
Tom

stjames151 · 12-09-2008, 07:33 PM

If I've learned anything about AM General's part system, its that you probably have to order each piece piece individually to replace any part (eg. you have to buy nord-lock washers in halves instead of sets). You'll probably have to put the switch together.

You will almost certainly be able to get just the switch. If its not that, then the resistor bar is an easily tested, simple fix too. You can test either with a mulit-meter.

actionpaintball · 12-10-2008, 08:51 AM

Resitor pack (90% of the time) ....or switch. Also check the resistor pack plug.

12-09-2008, 09:57 AM	#1 (permalink)
tcmog Registered User Join Date: Nov 2006 Member # 82798 Location: Dallas Posts: 33	heat and a/c I have a 1998 H1 Heat and a/c fan only works on hi. When you turn the knob from low to hi it does not start blowing until you get to hi. Auxillary unit fan works on hi and low. Has anyone had the same problem? __________________ Campbell Buggy , 98H1 , 72 Pinzgauer

12-09-2008, 06:04 PM	#2 (permalink)
stjames151 Registered User Join Date: May 2008 Member # 113619 Location: Right behind you Posts: 565	are they on the same switch? __________________ [QUOTE=Roc Doc;11597106]This is so weak it makes Richard Simmons look like he's UFC ready.[/QUOTE] [QUOTE=ironpig70;13786791]But it renforces the point to kids guns are toys.[/QUOTE]

12-09-2008, 06:40 PM	#3 (permalink)
ron b Registered User Join Date: Jun 2007 Member # 93830 Location: socal Posts: 155	the front and rear units/fans use different switches. Maybe replacing the switch would be an easy solution? Check the HML knowledge base and/or call Dave Breggin at BlueHummer.com -- 303-361-5833 rb __________________ 97.5 hummer 39.5's, beadlocks, lifted and bagged

12-09-2008, 07:08 PM	#4 (permalink)
tcmog Registered User Join Date: Nov 2006 Member # 82798 Location: Dallas Posts: 33	Front and rear units are on separate switches . I dont know why I mentioned that the rear unit works properly. Before posting I checked the Html but couldnt find anything. I was concerned that the switch for the front fan required replacing the complete control unit. I will call dave in the A.M. Thanks Tom __________________ Campbell Buggy , 98H1 , 72 Pinzgauer

12-09-2008, 07:13 PM	#5 (permalink)
tcmog Registered User Join Date: Nov 2006 Member # 82798 Location: Dallas Posts: 33	My poor proof reading skills I mean the Hml . Tom __________________ Campbell Buggy , 98H1 , 72 Pinzgauer

12-09-2008, 07:33 PM	#6 (permalink)
stjames151 Registered User Join Date: May 2008 Member # 113619 Location: Right behind you Posts: 565	If I've learned anything about AM General's part system, its that you probably have to order each piece piece individually to replace any part (eg. you have to buy nord-lock washers in halves instead of sets). You'll probably have to put the switch together. You will almost certainly be able to get just the switch. If its not that, then the resistor bar is an easily tested, simple fix too. You can test either with a mulit-meter. __________________ [QUOTE=Roc Doc;11597106]This is so weak it makes Richard Simmons look like he's UFC ready.[/QUOTE] [QUOTE=ironpig70;13786791]But it renforces the point to kids guns are toys.[/QUOTE]

12-10-2008, 08:51 AM	#7 (permalink)
actionpaintball Dabbler Join Date: Apr 2004 Member # 29562 Location: Hayes Va 23072 Posts: 1,186	Resitor pack (90% of the time) ....or switch. Also check the resistor pack plug.

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