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I have a callor gas 10 year old 3bar heater which have not bee used for the las 8 years. Now I wanted to use,but it do not want to work.It does switch on and as soon as you release the switch if goes off. What should I do.

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For a gas appliance to work it must pass a series of tests for safety reasons. there is a flame sensor that "sees" the flame and allows the system to proceed normally. If it is blocked by dirt, insects, or whatever, the system will shut down. By your own admission the system has sat idle for a long time. find and clear the flame sensor and it will probably work. You could go to the manufacturer's website and get a diagram, showing where the sensor is located. good luck, John

Posted on Nov 07, 2008

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I have a Vulcan Ultra 21E ceiling ducted unit The LED flashing fault is no 8 which is a gas interruption. The unit fan runs, ignition starts full flame and gas flows for about 2 secs then shuts down The...

Just been thru a similar problem with my Climate Technologies Vulcan High Efficiency Ducted Gas heater which in this case is installed under the house. This heater is about 7 years old and I have previously (2 years back) refurbished the controller by replacing the main power supply electrolytic filter capacitors.

I also had a communication problem with the Touch pad Thermostat which in the end required replacing the entire touch pad as one of it's voltage regulators had gone intermittent (Touch pads are available on E-Bay). To operate the heater while the touch pad was out of commission I installed a manual switch between the heat contacts on the heater controller. Closing the switch causes the heater to permanently run if it has no thermostat. Once communication with the touch panel was restored we were able to try and find the intermittent heater fault.

Again I have been getting Fault Code 08 "Gas Interruption" however the heater was lighting OK and then going out after about a minute or so. In the end I found 2 distinct heater faults.

Fault 1 was the flame sensor where the weld between the wire and flame probe rod had broken but it was still touching. This meant it was sensing Flame OK and then later would go open with expansion as the temperature rose. I fixed this by replacing the Flame Probe with a new one sourced from Reece HVAC.

At this point I celebrated thinking it was fixed!

Fault 2 after the flame sensor issue was cleared the fault still persisted but slightly less often.
The heater was cycling 3 times to get going and then locking out, requiring a reset from the touch thermostat or heater controller board. Sometimes the heater would achieve a onging burn for a long period, and other times just locking out after 3 tries.

Careful observation of the flame, through the observation holes after it lit, showed correct flame sensing but as soon as the nominal 65C duct temperature was reached the combustion fan (modulates) throttles back too far and the flame goes out, the flame sensor switches off and gas valve is then closed. The pressure differential across the burner manafold controls the Gas flow rate so if the combustion fan goes too slow the flame goes out due to lack of gas.

On the control board there is a potentiometer marked "MIN GAS RATE" this needs to be tweaked clockwise until the burner remains lit when the nominal 60-65C duct temperature is reached. Don't turn it up too far or the heater may not throttle back enough and end up going out on overheat.

Once a stable flame is achieved when throttled, try the heater in the economy mode which uses a lower recirculating fan speed and check the flame still remains lit. My problem was most obvious in the Econ mode.

Hope this helps someone else - It took me over a year to solve this one. NeilP

Aug 21, 2011 | Heating & Cooling

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The unit worked great when it was last used about 8 years ago. Its been stored in the box since it was last removed the window. We tried to plug it in today and the electronic controls keep beeping and...

8 years and no use? It could be anything. But, the one that jumps out the most, is that the compressor may need to be recharged with refrigerant gas and the compressor may also need oil. This is especially true, if the unit was stored in any position, other than the way it would sit in your window. If this is the case, all the fluids have run out of the compressor into areas that will not allow it to function as it should. Unfortunately, I really don't think there's any quick fix to "jump start" it. At 8 years old, parts may not still be available for it.

I'm sorry, I wish I had better news for you.

Jul 21, 2011 | Kenmore 71055 Air Conditioner

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The heater was serviced and working perfectly about 7-8 years ago and not used since it has just sat in the corner of the garage now when plugged in it sometimes emits masses of white smoke and fumes which...

Im assuming from what your said about "when plugged in" , the heater is electric.

Whether it electric or gas, it simply needs a thorough cleaning, Remember it sat in the "corner of the garage from about 7-8 years ago?" It gathered a lot of dust, dirt, lint and probably a spider or two or even a mouse nest.. It needs to be cleaned inside and out, That should solve your problem. However, do not use water to clean it.

Use a vacuum cleaner that has a hose and crevice tool attachment to accomplish this. Be careful not to break or disturb any wiring. Use canned compressed air with a straw nozzle (like you clean your computer with) to reach into the nooks and crannies to blow away the dust. After you're satisfied that you have done a thorough, spot one job cleaning the heater, reassemble it and give it a try.

This should help to solve your problem, mate.

Feb 12, 2011 | Heating & Cooling

1 Answer

I have a 80,000 btu round construction heater. It runs for about 10 minutes and goes out. It' maybe 8 years old. There are some numbers on it if you need them.

Dirty coil, dirty filter, rusted senor, wrong setting of temp are some of the reasons to frequent shut down. Check one by one and rectify

Jan 12, 2011 | Heating & Cooling

3 Answers


Your going to need to know the age of the unit. If its less than 5 years old, its most likely a 13 SEER. If its anything more than 5 years old, its most likely a 10 SEER. If its anything over 10 years old, its most likely an 8 or 6 SEER.

Remember, that a unit will loose an average of 1-2 SEER for every full year of operation. This is just due to age, wear and tear, and usage.

So, if its a 10 SEER unit that is 7 years old, you could say that it is about as efficient as something in the 4-6 SEER range.

Jul 12, 2010 | Goodman CKL36AR36 Air Conditioner

1 Answer

Hot water heater is natural gas type gas is staying on all the time burning even when water is hot it continues to burn. Not hot water tank is over 10 years old should I try to repair or just replace???

The thermostat is what is out of calibration...this is built into the gas valve. Unfortunately the part cost almost what a new tank does. My opinion is to gas valve....another 8 years the tank...

May 09, 2010 | Heating & Cooling

1 Answer


you may need to replace the thermostat or the thermostat batteries if applicable. To replace the thermostat follow the instructions on the new thermostat. Make sure to set the thermostat to the gas setting(see instructions) this should cure your problem. Good Luck on the repairs


Jan 05, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Hi,my name is PK I have 5 tons Rheem air handling 10 year old. it is vertical type. How to fix the leak at evapolator coil. it leaked at the bottom right side. Can I use epoxy to seal this leak.Or replace...

Epoxy wont hold you need a new coil. about 8 to 12 hundred depending on your location. If it is 10 years old I would suggest you change the air handler. You will get a lot more efficient unit. Cost about 2200 but you will get a 10 year warranty from most manufacturers. Dont buy one unless you get a 10 year warranty. Russ

Jul 28, 2009 | Heating & Cooling

1 Answer

Pilotlight on gas water heater went out. cant get cover off to light pilot light. Heater is three years old.

Some of the modern heaters have covers that are not removed to light the pilot. Look for an external "clicker" type spark ignitor.

Usiually a red button. Sometimes integrated into the gas valves on/off switch.

Dec 06, 2008 | Heating & Cooling

1 Answer

I bought a home built in 1935 with a Perfection Brand gas forced air heater, any info or a website on this old brand of heater would be greately appreciated. I was told it is over 25 years old, I just want...

any and i mean any ac and heat company you call in the yellow pages can and will be happy to repair yor heater. parts are all generic. problem is the heat exchanger needs to be tested every year with a co detector so no one gets killed. thats pretty blunt but hey its true. gas is nothing to play around the gas company and they will usually test it for you. maybe for free. all heaters work the same. stat says heat , if pilot is lit then thewrmocouple senses heat and oks main gas valve to open then burner lights and a while later blower comnes on and blows hot air into house. question is , are air and chimmney gases mixingin furnace? test with co detector.does flame lift on burners? observe and compare with your previoys observations. my gut feeling is that consummer reports says 9 to 13 years is a life span on a ne wunit , your messing around with a old piece of equipment. it doesn't care about your finances, it will fail and harm you when its time comes reguardless ....

Oct 12, 2008 | Heating & Cooling

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