The first reaction was to call the factory to fix the equipment。
In fact, more than half of the ignition failure can be done by yourself。
In boiler systems, ignition is part of the fuel system - its mission is to get the gas safely to the furnace and then light it。
It doesn't light a fire. It's usually somewhere on this chain. Here's the sequence, from simple to complicated. You can check it step by step, without the need for professional tools。
Step 1: check if the gas is in front of the stove (most commonly)
This is the easiest place to get in trouble and the easiest place to fix。
Go look at the gas valve next to the device (generally on the side or back of the device, there is a handle or button on a metal pipe): if the handle and the pipe are parallel, the valve is open; if it is vertical, it is closed。
If the valve is open or it can't be lit, then look at the gas gauge pressure pointer. I don't know. It should normally be between 2 and 5 kpa (specific values are shown in terms of equipment placard requirements, different models). If the pointer is near or clearly low, this indicates insufficient gas pressure。
What you can do:
The valve shuts and opens it
There's not enough pressure to contact the gas company
The tank's out of gas
I can't even light these three steps。
Step two: is the wind machine turning
Prior to ignition, the equipment will start the winder to clear the oven and release residual gas. You can hear the clear wind at this stage。
If the wind engine does not turn, the equipment does not ignite。
What you can do:
Get your ears near the device and hear the wind
There's no wind to check the power switch, see if the air switch in the distribution box has jumped
There's a wind, but there's no light
Step three: see if the torch is on
When you're done with the windmill, you'll hear the sound of cracking. It's a fire。
If the sound is not heard, the ignition system is not working。
What you can do:
Confirm if the power is working. Sound
No sound ignition transformers or controllers may fail
There's sound, but no light. Keep moving. Down
Step four: see if the flame detector is covered
Some of the equipment was extinguished as soon as it was set on fire, which was probably the problem with the flame detectors。
The flame detector is a probe or a light-sensitized probe mounted near the head of the combustion, acting as a “see” flame. If it is covered with ash or carbon, or its position is reversed, the controller considers it to be non-fired and immediately cut off the gas。
What you can do:
Turn off the power, and when the equipment cools, open the burner
Flames detector found (usually a metal probe with a ceramic seat or a small probe with a lens) and wiped clean with dry cloth
Restart the device
If you're not sure which one is a flame detector, don't take it off yourself. Error parts may damage the equipment。
Summary of the order of examination
If i'm done with all this, i can't light it
It's an internal malfunction: it's probably the controller's broken, the ignition transformer's on fire, or the circuit board's in trouble. These need to be handled by professional maintenance staff. You don't have to take them off yourself。
But by this point, you've done everything you can -- at least knowing it wasn't the gas that didn't open, it wasn't the jumper, it wasn't the detector that was dirty, and when the master came, he could tell him, "i've checked all this out, and the other one could find the problem more quickly。
Let's wrap this up
The steam equipment was unfired, probably the gas valve was open, there was insufficient pressure or the detector was dirty. I'll check all three first, then call master and save time。
# steam equipment # boiler maintenance # fuel system
