Heater blower ?/problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

panhead59 · Today, 10:31 AM

Working on 68. Heater blowermotor does not work. Replaced motor, resistor and fan speed switch. Fuze and ground are good. I have power to connector that plugs into blower motor. Still doesn't work. What am I missing ? Tks in advance

**pjmoreland** · Today, 11:05 AM

Do you have a ground wire in place on the motor and does it have a good connection?

panhead59 · Today, 01:01 PM

Yes good ground. Shouldn't the motor run with unplugging hot wire and running a wire straight from batt. + to blower motor ? Grounded of course.

**pjmoreland** · Today, 01:10 PM

Quote:

Originally Posted by panhead59

Yes good ground. Shouldn't the motor run with unplugging hot wire and running a wire straight from batt. + to blower motor ? Grounded of course.

It definitely should run like that. Try running a wire from the batt - to the blower motor housing as well in a spot where the metal of the housing is exposed through the paint.

I wonder if your fan is jammed somehow inside the housing preventing it from rotating.

panhead59 · Today, 01:46 PM

With jumper wire on both pos n neg from battery to motor it still doesn't run. Second "new" motor thinking 1st one could be bad. Both these new motors and the old one do not run when hooked directly to 12v(battery)

**pjmoreland** · Today, 01:48 PM

See if it will run when removed from the heater housing.

panhead59 · Today, 02:04 PM

Nope. Does not work holding in hand hooked up directly to batt

**pjmoreland** · Today, 03:06 PM

Wow. That's crazy. Is the motor housing made from multiple metal segments? If so, try grounding the individual segments.

panhead59 · Today, 03:29 PM

Ok tks. I'll move ground around. At this point I'll try anything !!!!!

Today, 10:31 AM	#1
panhead59 Registered User Join Date: Feb 2012 Location: Vinton, Va. Posts: 478	Heater blower ?/problem Working on 68. Heater blowermotor does not work. Replaced motor, resistor and fan speed switch. Fuze and ground are good. I have power to connector that plugs into blower motor. Still doesn't work. What am I missing ? Tks in advance __________________ "You are not forgotten" USMC 75-79 (Aviation Ordnance Tech- F-4 Phantom) 1959 H-D Panhead. Owned since 1978. Currently with son in Lawton, OK. 1968 Chevy Custom SWB pick up. Fleetside. Lowered 4/6. Totally refurbished. 1966 Pontiac GTO. 4 speed. Saved original 389. Now has slightly built 455 engine. 355 rear gears. Very fun to drive !

Today, 11:05 AM	#2
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,480	Re: Heater blower ?/problem Do you have a ground wire in place on the motor and does it have a good connection? Attached Images

Today, 01:01 PM	#3
panhead59 Registered User Join Date: Feb 2012 Location: Vinton, Va. Posts: 478	Re: Heater blower ?/problem Yes good ground. Shouldn't the motor run with unplugging hot wire and running a wire straight from batt. + to blower motor ? Grounded of course. __________________ "You are not forgotten" USMC 75-79 (Aviation Ordnance Tech- F-4 Phantom) 1959 H-D Panhead. Owned since 1978. Currently with son in Lawton, OK. 1968 Chevy Custom SWB pick up. Fleetside. Lowered 4/6. Totally refurbished. 1966 Pontiac GTO. 4 speed. Saved original 389. Now has slightly built 455 engine. 355 rear gears. Very fun to drive !

Today, 01:46 PM	#5
panhead59 Registered User Join Date: Feb 2012 Location: Vinton, Va. Posts: 478	Re: Heater blower ?/problem With jumper wire on both pos n neg from battery to motor it still doesn't run. Second "new" motor thinking 1st one could be bad. Both these new motors and the old one do not run when hooked directly to 12v(battery) __________________ "You are not forgotten" USMC 75-79 (Aviation Ordnance Tech- F-4 Phantom) 1959 H-D Panhead. Owned since 1978. Currently with son in Lawton, OK. 1968 Chevy Custom SWB pick up. Fleetside. Lowered 4/6. Totally refurbished. 1966 Pontiac GTO. 4 speed. Saved original 389. Now has slightly built 455 engine. 355 rear gears. Very fun to drive !

Today, 01:48 PM	#6
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,480	Re: Heater blower ?/problem See if it will run when removed from the heater housing.

Today, 02:04 PM	#7
panhead59 Registered User Join Date: Feb 2012 Location: Vinton, Va. Posts: 478	Re: Heater blower ?/problem Nope. Does not work holding in hand hooked up directly to batt __________________ "You are not forgotten" USMC 75-79 (Aviation Ordnance Tech- F-4 Phantom) 1959 H-D Panhead. Owned since 1978. Currently with son in Lawton, OK. 1968 Chevy Custom SWB pick up. Fleetside. Lowered 4/6. Totally refurbished. 1966 Pontiac GTO. 4 speed. Saved original 389. Now has slightly built 455 engine. 355 rear gears. Very fun to drive !

Today, 03:06 PM	#8
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,480	Re: Heater blower ?/problem Wow. That's crazy. Is the motor housing made from multiple metal segments? If so, try grounding the individual segments.

Today, 03:29 PM	#9
panhead59 Registered User Join Date: Feb 2012 Location: Vinton, Va. Posts: 478	Re: Heater blower ?/problem Ok tks. I'll move ground around. At this point I'll try anything !!!!! __________________ "You are not forgotten" USMC 75-79 (Aviation Ordnance Tech- F-4 Phantom) 1959 H-D Panhead. Owned since 1978. Currently with son in Lawton, OK. 1968 Chevy Custom SWB pick up. Fleetside. Lowered 4/6. Totally refurbished. 1966 Pontiac GTO. 4 speed. Saved original 389. Now has slightly built 455 engine. 355 rear gears. Very fun to drive !



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