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Heating system not working

We have just moved in to our rental house which has been empty for a while, it has a Vulcan cx heating/air conditioning system (reverse cycle I believe), we have tried unsucessfully to get the heating side working, all we can get is cold air blasting out of the vents.
We did ask someone to have a look, he said the pilot light had gone out and he re-lit it, the unit kicked into life and you could see the gas meter moving so gas was getting into the system, I left it running for a while but cannot get any hot air coming through. We have no instruction manual to work with and we are finding it rather cold, can you suggest anything we can do.
Thanks mattjcorp

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If your meter shows gas is flowing but you are getting no heat you may have a potentially serious problem. Since you are a renter, call your landlord or leasing agent today and tell him the situation. He should send a qualified technician to check your system.

Posted on Oct 01, 2008


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Posted on Jan 02, 2017


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Hi, I've just purchased a farm house with a Vulcan Bonaire evaporative cooler installed. My problem is that it leaves our tiled floors very wet, which is very slippery and dangerous.

replace the float valve in the water tray
evaporate coolers work by pumping water onto a screen through which air is blown
the hot air evaporates the water in the screen and the air out is cooler
works very well in hot dry climates but not so well when the humidity is above 80%

Nov 29, 2017 | Vulcan Heating & Cooling

1 Answer

Needing information on removing a heater core from a 2012 Chrysler 200

how to? that it the full steps, out and in,,>????
there is lots of information on this....
not in warranty? huh?
and how could IT be bad so soon?? no way/ ,huh?
why not post the symptoms and not guess. the below HORROR
posted to show 2 days lost work (life)
buy the FSM and read the HVAC chapter. every word
or , same deal. look, read and decide,
oops I cant to this.....?

parcial excerpts. to prove case.
The HVAC housing assembly must be removed from vehicle for service of the heater core.

housing out: 101:
Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could result in an accidental airbag deployment and possible serious or fatal injury.


Refer to the applicable Warnings and Cautions for this system before performing the following operation and . Failure to follow these instructions may result in possible serious or fatal injury.


The HVAC housing must be removed from the vehicle and disassembled for service of the heater core, A/C evaporator, air intake housing and the mode-air and blend-air doors.


LHD model shown in illustrations. RHD model similar.

Heat Shield - Unified Line 08 JC

Heat Shield - Unified Line 08 JC

Disconnect and isolate the negative battery cable.

Recover the refrigerant from the refrigerant system (Refer to Heating and Air Conditioning/Plumbing - Standard Procedure).

Partially drain the engine cooling system (Refer to Cooling - Standard Procedure).

Remove the top nut (2) that secures the heat shield (3) to the stud (1) located on the dash panel.


Two slots are provided at the bottom of the heat shield to aid in heat shield removal. Complete removal of the two bottom heat shield retaining nuts is not required.

Reach behind the engine and remove the two bottom nuts the that secure the heat shield to the studs located on the dash panel and remove the heat shield. Rotate and tilt the heat shield as required.
(capture the FREON as required by USA LAWS, Illegal for DIY person to do. so...)
Unified Liquid and Suction Line to Evaporator 08 JS

Unified Liquid and Suction Line to Evaporator 08 JS

Remove the bolt (1) that secures the A/C liquid and suction line assembly (2) to the A/C evaporator (3).

Disconnect the A/C liquid and suction line assembly from the A/C evaporator and remove and discard the dual-plane seals.

Install plugs in, or tape over the opened refrigerant line fittings and the evaporator ports.

Disconnect the heater hoses (4) from the heater core tubes. Install plugs in, or tape over the opened heater core tubes to prevent coolant spillage during housing removal.
HVAC Housing to Dash Panel Nut

HVAC Housing to Dash Panel Nut


Make sure to remove the five bolts that secure the HVAC housing to the instrument panel support prior to removing the instrument panel from the vehicle.

Remove the instrument panel (Refer to Body/Instrument Panel/PANEL, Instrument - Removal).

Remove the rear floor ducts (Refer to Heating and Air Conditioning/Distribution/DUCT, Floor Distribution - Removal).

Remove the condensation drain tube (Refer to Heating and Air Conditioning/Plumbing/TUBE, Condensation Drain - Removal).

Remove the nut (1) that secures the passenger side of the HVAC housing (2) to the dash panel (3).


Use care to ensure that the interior is covered in case of loss of residual fluids from the heater and evaporator cores.

Pull the HVAC housing rearward and remove the HVAC housing assembly from the passenger compartment.

at the least, and for sure , things will break, as you work.
get lost, or not figure out how to put it ALL BACK

Remove the HVAC housing assembly and place it on a workbench (Refer to Heating and Air Conditioning/Distribution/HOUSING, HVAC - Removal).

Remove the left side front floor duct (Refer to Heating and Air Conditioning/Distribution/DUCT, Floor Distribution - Removal).


If the foam seal for the flange is deformed or damaged, it must be replaced.

Remove the foam seal (1) from the flange (2) located on the front of the HVAC housing (7).

Remove the screw (8) that secures the flange to the front of the HVAC housing and remove the flange.

Remove the screws (3) that secure the heater core tube retaining brackets (6) to the side of the air distribution housing (4).

On RHD models, remove the air distribution housing from the HVAC housing (Refer to Heating and Air Conditioning/Distribution/HOUSING, HVAC - Removal)

Carefully pull the heater core (5) out of the driver side of the air distribution housing.
end excerpt.

May 13, 2014 | Cars & Trucks

1 Answer

1997 Kawasaki VN 750 Vulcan backfires when throttle released

Hi, Anonymous if your carburetor or exhaust is:
COUGHING is usually caused by an air leak in the intake system and will generally have the same telltale signs, a wet or damp build up of oil/gas seepage at the intake manifold to cylinder head or carburetor to intake manifold connection and in rare instances a worn throttle plate shaft and or seals.
POPPING on deceleration is usually caused by a lean fuel condition or an air leak in the exhaust system and is generally located where black carbon soot is seen as a flashing build up from any joint connection. This condition can easily be remedied by removing and cleaning both joint pieces and reassembling with high temp silicone and torquing the exhaust clamp to the proper spec.
SPITTING is usually caused by a faulty accelerator pump and or nozzle, or the float bowl needle and seat leaking and overflowing through the main jet mixing well nozzle, or the air-fuel mixture screw is adjusted too lean.
BACKFIRING is usually caused by a sticky/tight intake valve or a timing issue, 180 degrees out or cam chain off 1or 2 teeth.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Causes of backfire Kawasaki Vulcan Forum Vulcan Forums
Misfire Backfire Kawasaki Vulcan 750 Forum Kawasaki VN750 Forums
Kawasaki VN 750 Service Manual
OEM Parts for Kawasaki
1997 Kawasaki Vulcan 750 Owner Manual

Apr 12, 2014 | 1997 kawasaki VN 750 Vulcan

1 Answer

Can a pro recommend a comperable replacement wall AC only-no heat?

Most air conditioners now are reverse cycle, which means that they can heat as well as cool. Cooling only units were popular many years ago due to the price difference for a reverse cycle. Today, the cost of manufacturing has dropped and it has resulted in cooling only units being virtually finished. I would suggest you get a local air con sales company to come to your house to measure up properly and determine what would be best. There are a lot of factors in installing air conditioning. IE/ The size of the house, the area it will be required to heat / cool, the amount of windows, types of walls, roof etc (Heat loading on the house) Roof and wall insulation etc etc.

Apr 09, 2014 | Heating & Cooling

1 Answer

Heater will not start

If you are getting air conditioned air when you are supposed to be getting heat, the compressor is working but the valve that reverses the refrigerant flow for heat to be created could be stuck in the default postion which for a Ruud is air conditioning. There is also a special output on your thermostat to activate the heat cycle and reverse the valve.. Maybe that is not working and the cause of your anomaly.

Nov 24, 2013 | Ruud UAKA037 Air Conditioner

1 Answer

Good after noon i have a Starway Split Wall Mount Reverse Cycle Air Con. the problem i have is when i need to warm my house the air coming from the system is cold. even with the temp setting on the sun...


Examine the condenser. The condenser pushes the air and expels the warm air from the air condition to the house. Also check the fan heater on your system to see if it is functioning, because if it is not, it will circulate the heat from the unit to the house, in this case,it will need to be fixed. also check if the thermostat on the unit is regulating because if it is not regulating, you will not get the house to warm due to bad thermostat, check to ensure it is regulating, if not, replace it, it might be defected because that is the key to regulate the unit. so pay attention to it to see if it regulating the unit, if not, replace as advice.

Take care.

Jun 12, 2010 | Heating & Cooling

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