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Hi, My heater only works on the #4 setting, is it just a fuse that needs replacing? cheers

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The blower motor resistor needs replacing. More info, let me know.


Posted on Mar 15, 2011


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1 Answer

My Air Conditioner/Heater does not blow out air

Hi there, it's possible a fuse, check your fuse panel and you will find a fuse caller blower/fan, check that first, cheers

Mar 05, 2014 | 2005 Dodge Stratus - Coupe, with rear...

1 Answer

I have a chevrolet cavaleer 1997 and the heater nor the ac work. The fuse box says inst lps isnt working correctly. What can i do. Also in the fuse box the rr dfog is not working either. Help me!

heater nor a/c work-does this mean the fan is not blowing-can you feel hot or cold air while set to hot or cold while driving-inst lps and rr dfog have you replaced the fuses-cheers Denny

Oct 30, 2013 | Cars & Trucks

1 Answer

Hi, The heater fan only works on setting 4. I have just replaced the Heater motor resister, but the problem is still there. I've checked the fuses all seem fine. Thanks in advance for your help.

can you tell me the type of swich you have knob type or electric type knob type the switch needs to be replaced. electric type the control board has burnt out.

Oct 02, 2013 | Opel Vectra Cars & Trucks

1 Answer

1995 Cadi SLS Codes, P0030 & P0036, Ckt Fuse or Relay Defective, checked fuse ok, where is relay located?

Hi there,

P0030 = HO2S Heater Control Circuit (Bank 1 Sensor 1) - No.1 Heated Oxygen sensor on bank 1.
P0036 = HO2S Heater Control Circuit (Bank 1 Sensor 2) - No. 2 Heated Oxygen sensor on bank 1

For both of these to trigger on the same bank, means most likely an Open or Short to Ground condition (somewhere on the Bank 1 circuit) stopping the HO2 sensors from reaching their working temperature.

Check the following in this order:

1) Using a multimeter, check 'continuity' of the Oxygen circuit FUSE terminals (don't rely on visual inspection alone) or replace fuse with a known good one.
2) Check for moisture getting into both oxygen sensor connector terminals (bank 1).
3) Check for good connection at Oxygen sensors (bank 1).
3) Have both heated oxygen sensors on Bank 1 tested (ensure their values are to specification).
4) Check HO2 pin-outs of the PCM for correct voltage.

Only replace the HO2 sensors as a last resort (if out of spec).

Then engine department relay centre & fusebox location is behind the washer bottle, but I believe the HO2 sensors are connected direct to the PCM, not a relay.


"If this has helped you in any way, please rate this solution"

May 07, 2011 | Cadillac Seville Cars & Trucks

2 Answers

The fan for the heater/AC only works on the highest setting (4). Could this be a fuse?

no the blower switch on the dash board is at fault the high blower speed works off the relay only which is ok

Feb 20, 2010 | 2006 Jeep Liberty

2 Answers


You need to look underneath the dash. Find the wires (4 of them) that goes into the blower box. They are very thin and corrode with time. You might even see some melted plastic bits as these wires are too thin and overheat.

Feb 09, 2010 | Heating & Cooling

1 Answer

Heater problem the power to the heater is there but will not work but if u put a live from the battery to the heater it works what can i do cheers

Sounds as if a fuse has blown. These are cheap and easy to fix. Find your fuse box, and check the fuses. (If you have a manual, that would be good) Replace the fuse. Make sure you get the correct fuse power rating though.

If it blows again, you have a problem in the circuit and you would be best taking the car to an auto electrician.

Dec 18, 2009 | 2005 Peugeot 405

1 Answer

Hi, have an N Reg fiesta, the heaters works but the blowers have packed up. Keeps blowing the fuses, any idea what maybe causing the fuses to blow? Cheers

sounds like the bushins or brushes are going out in the blower motor, just replace the blower and problem will be gone.

Oct 26, 2009 | 2000 Ford Focus

1 Answer

Fan heaters

Just take a test light and check them all.

May 28, 2008 | 1996 Ford Escort 4 Door

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