Question about Vulcan AUW230A Heater

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I have just replaced a faulty main circut board on a Vulcan ultra 21 comfort control ducted heater and it will not start. It looks like it is not recieving the start signal from the remote. Does the remote/circut board have to be reset/programmed to recognise the new part?

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I couldn't find much information on the net, but you can check the remote transmitter by shining it into a digital camera (you will see white light coming from it). I also read where one person's remote reset itself somehow, here's what they said:

My Vulcan/Bonaire heater remote control goes to reset and stops working frequently. Last 4 error codes are 07 and 08. What's wrong? Anyone with the error code description?

Unfortunately, noone answered the Fixya question.

If the unit contains a thermocouple, it's always a suspect component since it gets and stays hot.
Suspect a bad contactor, if equipped, and any startup capacitor not on the main board.
Good luck, and hope this helps.

Posted on Jul 30, 2010

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Bonaire vulcan comfort control


No it cant really be fitted as the evap system uses much larger duct and also in some cases people use a different type of duct that when running a gas heater threw it it tends to melt with the heat. Your best option would be to get new ducting that way you can size it correctly so you dont have air alance issues down the track.

May 10, 2014 | Heating & Cooling

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Vulcan ultra 21 f11 fault code


My Ultra21 fired up for a while then after a few minutes the flame extinguished and the fan did its usual cool down thing, so basically we were getting warm air for a few minutes and then cold...

Try this...

Safety is you number one priority here. ( its not dangerous but its always good to be cautious)

Switch the furnaces power off from the power point to stop the heater firing up again.

Take off the cover for the circuit boards, take off the cover that covers the burner/fan etc.

You will see 2 wires from the main circuit board (one black and one grey), they feed through a grommet and feed into the burner area.

One is your igniter (i think) and the other is you flame sensor.

The one with the bent or right angle probe is the igniter.

The other is the sensor (right hand one when your viewing from the circuit board end)

Unscrew each one carefully and give it a clean with some pot scourer or steel wool etc.

I did this last night and it fixed my problem

Aug 27, 2012 | Vulcan AUW230A Heater

1 Answer

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

1 Answer

I have a Vulcan Bonaire ducted heating system with Comfort Control in a holiday house, installed in 2006. It was working fine last time we used it about a month ago. Today every time I try to turn the...


hi,
The heating coil itself have some problem that's why the circuit breaker clicks off by sensing over current drop. Check the heating coil and replace it.
ok

Jun 11, 2011 | Heating & Cooling

1 Answer

Vulcan ducted heating system 530 E (5 years old) have replaced AAA batteries on remote control but still not working. Thanks Michael


You have to recode the remote to the heater if the batteries have been removed for more than 3 minutes. On the comfort control will the remote is in a off state turn the heater off at the power.

While off press and hold the up button and the on/off until code appears then release buttons and turn the power back on to the heater.

When code disappears from the remote turn on the remote set the temp higher than current temp and combustion fan should start up then heater will fire up.

If not repeat process as they are easily corrupted by other remotes.

Download control manual from - http://www.bonaire.com.au/support/documentation/owner/default.aspx

Set / check fan speed or it may overheat.

May 17, 2011 | Heating & Cooling

1 Answer

Our remote control for Vulcan Comfort Control Gas Ducted Heating is broken and we need a replacement, where can I find one as Bonair/Vulcan no longer makes this model and their spare parts business cannot...


Try Skytech Systems. They make a remote control for just about anything. And one of theirs may be adaptable to what you need. http://www.skytechsystem.com/ If you don't find what you're looking for on their website, call them and talk to Customer Service.

Mar 31, 2011 | Heating & Cooling

1 Answer

Is vulcan duct heater still in existence? My problem is the thermostat control for the room temp has gone out of control - from 22 -35 0C. This has affected the heater cut off efficiency.


Yes. Vulcan heater company is still making heaters. Here is the link. http://www.vulcanelectric.com/

Grainger is a direct seller of Vulcan heaters, so you chould be able to give them a call, explain what you need or giver them a part number and they will be able to get what you need.

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