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Messages - ShopSpecialties

Pages: 1 [2] 3 4 ... 14
16
Welcome Center / Re: Clean burn won't light
« on: December 24, 2020, 11:01:00 am »
Did you try lifting the ignitor to see if the spark would jump to electrodes ?

17
Welcome Center / Re: Clean burn won't light
« on: December 23, 2020, 11:54:43 am »
Ok lets take it slow and simple.

No spark ? The easy way to check for spark is to lift the ignitor slowly while it is trying to fire to see if spark jumps to the electrodes.

Does the blue wire from the ignitor go to #7 on the wiring block or do you have an updated primary control to where 2 blue wires are wire nut together ?

18
Welcome Center / Re: Clean burn won't light
« on: December 23, 2020, 11:17:07 am »
Oil quality ?

Clean nozzle ?

Spark is good shooting past the nozzle ?

19
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 30, 2020, 05:13:06 pm »
I might have mentioned oil quality once or twice. Could be synthetic or heavier oils that need more preheat. The Reznors have poor preheating so they are more finicky with what type of oil is put in. You could try cutting it with good oil/diesel if you feel like screwing around with it.

20
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 26, 2020, 12:37:20 am »
If it overheated the fan would keep running but the power to the burner would be shut off. After it cools power would return to burner. So it could have failed to re-fire after cooling but we do not know for sure.

This is a metered pump so pressure remains the same but the volume changes. The 3,000+ will deliver less fuel. It could be throwing so much fuel out that is not atomized well leading to poor ignition by spark.

21
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 25, 2020, 11:35:25 pm »
You could try adding some more combustion air to see if the flame pulls back. You are probably going to have to change the pump motor to get that flamed backed off.

I would not waste time with the diesel.

Crank up the thermostat and let it run more to see if anything changes.

22
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 25, 2020, 10:38:53 pm »
Sounds like all the raw fuel is finally getting burnt off.

Does the flame look any better with the new nozzle ?

Is the combustion air blower wheel clean ?

It is highly unlikely you have to much compressed air since the older they get the less air they put out. The compressed air atomizes the oil so if air pressure is low you have poor atomization. You could have a fuel quality issue that needs the hotter flame to ignite it. Synthetics and heavier oils depending on the blend of the entire tank require more preheat to ignite. 

23
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 24, 2020, 06:33:48 pm »
Ok, that would be a 0'-3,000' pump motor.

Another thing to check to make sure we are not missing anything would be air compressor pressure. I have a gauge, hose and T setup so I can just pull the hose going to the nozzle off the compressor and plug in.

24
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 24, 2020, 05:28:59 pm »
You have it plenty clean and the rest will burn off once we get a proper flame.

We actually need a pic of the pump motor. They all use the same A pump head but different motors.

25
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 24, 2020, 04:58:45 pm »
Spark looks good, it is shooting out past the nozzle and not arcing down to the nozzle or up to the retention head.

It sure is black in the firebox though and that one tube looks wet.

So now we need to figure out why we are running rich.

26
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 21, 2020, 08:42:00 pm »
Any updates ?

27
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 18, 2020, 08:17:06 am »
Yes, the oil pump motor. The sheet metal cover comes off and you will be able to see the motor and coupler behind the oil pump.

28
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 17, 2020, 11:21:42 pm »
Those tiny little pump motors are junk from like ice machines. With its age might be worth it to replace it with a high altitude one.

29
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 17, 2020, 10:49:21 pm »
Everytime I do a burner rebuild I check spark on the bench since that is easier than using a mirror through the little door.
I would try the new nozzle first to see if there is any difference.
You may have to put a high altitude pump motor on to tame that flame down. It may be throwing so much oil out that it is not burning it all until the firebox gets hot then the excess catches on fire and it starts huffing and puffing.
Check out the pump motor to see if it is the original and if it is low altitude.

30
Commercial Waste Oil Heaters / Re: Reznor ra235 ignition issues.
« on: November 17, 2020, 09:47:20 pm »
I am not a parts thrower so I do not see that getting you anywhere. You need to get back to the simple basics and diagnose better.
Are the electrodes properly adjusted ?
When starts huffing and puffing what does it look like in the firebox ?
I could not tell in the video but is it over firing and throwing sparks ?

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