Who should I talk to about putting on a secondary high limit control switch on a Wells F88 model deep fryer. Did not pass inspection with our insurance.

Check the resistance or thermostat.

Hi there, it seems that the wiring is messed up. For wiring diagram, you may visit www.wells-bloomfield search for your fryer model and you may be able to download it free.

If it's just not getting hot enough it's probably the thermostat. If it is the hi limit, the fryer would actually be cutting itself off and you would have to reset it.

partstown.com or webstaurantstore.com

Hi there.
You can call 214-343-2548 for Wells at Texas.
Regards.

Since you've mention the pilot light goes out at 400 degree F, then we are talking a gas Deep Fryer. The deepfryer usually use at 350 degree F for chips or else. Because the oil will start breaking down its quantity of frying very quickly over that temperature. Most people set at 350 degree F. Now we comes back to your problem, First you should have a deep fryer thermometer they espcially made for deep fryer, (You only mention 400 or better ) that make me think you're only guessing. Knowing the temperature is very important, most Hi limit is set at 420 degree F.
To me it seen the Hi Ltd control is working and that is why it cutting out the pilot when it reach its limit but we don't know what temperature that when the hi limit cutting out at.
When you have a thermometer, put it in the cold oil and turn the temperature to 100 degree F to see what the temperature control cutting out at. slowly increase your setting until it cutting out at 350 degree F . If you set at 250 degree F and the thermometer already reaching 350 degreen F then don't go any further , your temperature control is defective and need to be change a new one.
This is only the first step, you still have to check out the Hi ltd control to see how good its condition is,so far your information say it cutting out at 400 or better. But you've to be sure, because it is a safety control. Hope that will help you , God Bless.

Wells says that a dirty element can cause this. I believe the hi limit is bad. The limit has a capillary tube that breaks very easy. I would inspect this for cracks. Usually right where it connects to the sensing bulb. This is usually the case 99% of the time.

Good luck and hope this helps.

Yes it should have resistance through it unless it has been opened by a rise in temperature. Tell me what your problem is I can probably help you out.

Thanks

Hello

This sounds to me as if your thermostat is not cycling the unit off. But I can see a second problem as well there should be a high limit cutoff to prevent it from running on and boiling over. I would check both. The thermostat is the dial or knob to regulate temperature and the high limit is the safty to prevent boil over or run on.

Thanks

The high limit switch itself is getting weak , replace it and problem solved!