This come with the house recently purchased & has no manual. Can you advise what 12 flashing on the control panel means - this occurs in the start up process.
It has plenty of water, filters cleaned & 2 9.5kg gas cylinder with one replace several days ago.
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Hi, pull the panel off the unit where the light is flashing. If everything stops working, then you have a switch around the perimeter of the panel that killed the power and you will need to tape it down to restore power to the furnace. Once this is done, ( if it even happened ) look on the panel or the unit for a strip of paper that will be glued there telling you what each code means, and what to do to solve the problem. 2, 3, 4567 flashes mean different things going on. It may have tripped a limit switch, flame roll out switch ect. These are manual reset switches, so you will have no problem resetting them. I hope this was of help to you. Shastalaker7 A/C, & Heating Contractor
Hi, You need to remove the panel that was covering the circuit board to find the chart that is glued to it. This is the error chart and will lead you to the problem by the amount and how many times the led flashes. For instance, a steady flash, 4 long and 3 slow, the chart will tell you like 43 or 4-3 to go there and will tell you what is taking place. This will almost do the trouble shooting by it self. Get back to me if you need more help. Look for this chart as they all have one. Shastalaker7
If you take off the front control panel cover (simply prying off on the edge with finger) you will find 2 small buttons under the display panel, one being mode and the other being prog.
Press both simultaneously and hold down for 5 secs and the display will blink, press prog to advance to what you want to program, kinda like setting a timex watch. As I recall you can set degrees celcius or farenhight/ cycle/Hi/Lo etc.
Just keep in mind when you set using the up and down arrows:
flashing H means: at what temp do you want HEAT to kick in?
flashing C means: at what temp do you want AC (if you have it) to kick in....if no A/C fan simply blows air.