intermittant lighting

[gowitheflo]

I 'm working on a Frymaster fp-tcf fryer which lights intermittently. I replaced the spark module because it wasn't lighting at all. It lit after replacing the module. Then after about 1/2 hr it sounded the alarm for no light. I then changed the ign. cable. The old one had an alligator clip spliced to the ignitor. Now it will sometimes spark continuously and not light or not spark at all or sometimes it lights. If it lights it will stay lit until next time it tries to light.

Thanks for any suggestions

Wayne

[leonmiller]

Past experience with these units almost always ends up being the ignition assembly or the flame sensor. Look to see if the pilot lights and keeps sparking or it doesen't light and keeps sparking. If it lights, it's the flame sensor. If no light, it is most likely the ignition assembly, and it's almost always the porcelain insulator is broken or it has a track to ground from spillage/splashage that shorts the spark before it makes it to the assembly. (FYI: Ignition assembly is the pilot target and associated crap on this fryer...)

Pt# for flame sensor is 807-1310
Ignition assembly (Nat gas) 807-1311
( LP gas) 807-1553

Hope this helps!

[gowitheflo]

I contacted Frymaster tech assist about this problem. They said the new spark module that I installed would not work with the electronic controlled fryer. So they sent me a new one. This one worked fine for 3 hrs then no spark at all. The module had 24 volts to it but no spark. I was about to order a new module when the restaurant got rid of the fryer all together. I replaced the ignitor cable and ignition assy. I assumed that since once it lit it stayed lit the flame sensor was ok.

Thanks for your reply.
Wayne

[TedC]

If you've already replaced the ignition module, and the lead to the spark ignitor, and you have also taken the above gentleman's advice, i would check my wiring, make certain that the module and the ignition assy. all share a good common ground with the burners, in order to solve the problem, you need to catch the condition that changes when the unit goes from "working" to "not working." it might not be so on this particular fryer, but there are some frymasters out there where the pilot will go out if the hi-limit switch has tripped.