I have a customer who has flames shooting out of heat exchanger outlet from time to time. Gas valve does not seem to be overfired when I am there, and the fryer will run normally for days at a time. The baffles inside the heat exchanger inlets are warped and deteriorated. Any thoughs. Thanks
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The heat exchanger might be a result of the yellow flame but not the cause of it burning yellow. I would guess it is the amount of air being mixed with the gas. Most burners have a slotted metal air mixture ring on the front of the burner near the brass orfice, you are calling a jet. There is a locking screw to release the ring so it can turn to adjust the amount of air being mixed with the gas. If this doesn't fix the yellow flame it could be a gas pressure problem that could be the external regular in the gas line. Not sure if you are talking about the pilot flame or the burner flame or both? A tech should know how to adjust the air mixture.
Hi I use to repair every kind of restaurant equipment under the sun..maybe I can help...Is this a new install of the fryer and it never did this before, or did this just start do this..If a new install, the first thing I would check is the gas regulator and see if it is for Nat gas or Lp gas, and find that out..cause it has to match what you have, comming into the building..usuall the gas valve has a sticker on it that says what the water columbs are like for Nat it is like 3-6, and for Lp(propane) it is like 5-12. Ive seen customers buy a used fryer, and install a LP fryer in a Natural gas build, and the valve lets too much gas to the burners, and it will shoot flames out the top..then you would have to buy and convert a gas valve, or use parts to convert it..let me know further..
The gas valve may be leaking gas out where it should not be leaking gas out. You may need a new gas valve. This could be a safety issue, not just with a fire, but a potential fire gas explosion. Please get it fixed ASAP.
Hello, I would get another company to come out and check the Furnace. The gas valve starts and stops the flow of gas to the burners and if the gas pressure is not correct, it could be overfiring the burners. So yes they are related. but this is the fault of the service company and if they make mistakes by installing the wrong gas valve then I would look for a differant company.
I can tell you from my own experience with fryers, that they take quite some time to heat up....before lighting.... The probe takes some time to get hot, before it will kick on and light. You normally have to hold the light button on for some time, before the manual fryers will light. I have helped many a customer who cannot seem to get their manual gas fryers to light, and normally it's because they don't hold the light button down long enough. The sensor in there takes alittle time to heat up and it tells the fryer it's time to light. I think people get alittle scaried with gas and just don't hold it down long enough. Try holding that button in longer first, then light it... It should work. If not, call us and we'll try to walk you through it.... Our service tech is Ray, and I'm Susan with Restaurant Equipment Outlet, Cincinnati, Ohio, 888-542-5959. Thanks and good luck, Susan
Check if your pilot flame sufficiently heats thermopile during operation and make sure also that it is free of soot or any form of dirt, thermopile generates small amount of electricity to energize pilot and main valve of the gas valve for pilot and main burner operation. This electricity passes through hi limit mechanical contacts. Hi limit on fryers act as safety device which will shut down pilot and burner flame when oil temperature reaches 450F. If your fryer is set at 350F and over shoots up to 450F (which will trip hi limit and shut down pilot and burner flame), the thermostat is not good, but, if hi limit trips on temperature much lower than 450F, hi limit is bad.
Make sure the regulator assembly on the gas valve is for propane. Sounds like the gas pressure is too low and the flames aren't going into the burner tubes. Make sure they didn't install an appliance regulator on the back of the fryer. This is not needed as the fryer has a regulator on the gas valve. You can unscrew the cap on the regulator assembly and turn the plastic screw inside all the way in. DO not turn with alot of force. Easy does it.
The first thing that you need to check is the gas regulator in between the incoming gas line & the fryer. There is a plastic plug in the top, if this regulator is covered in grease then the regulator is not being vented and you will never get the burners to fire. Next is the gas valve, close to where the pilot tube comes from the valve you will find a screw about the size of a dime or smaller. WITH THE T-STAT TURNED TO THE OFF POSITION Remove that screw cap & down inside there is a plastic adjustment screw, with the unit pilot on, adjust that screw counterclockwise to the desired flame height. You won't need more than a couple of inches, now cycle the t-stat on and the burners should light. If they do not e-mail me at firstname.lastname@example.org & I will walk you thru it.