Kiln Service & Technical Help

How to Get Technical Help for Your L&L Kiln

If you're having a problem with your L&L kiln, we’re here to help. Before reaching out, please gather the following information to ensure faster, more effective support.

What to Include in Your Support Request

1. The Serial Number, Model Number, Voltage, and Phase – These are found on the kiln’s data nameplate.
2. A Clear Description of the Problem – Include what you’ve tried to troubleshoot.
3. Photos of the Kiln and Affected Parts – Send photos of the control panel, error messages, or anything unusual.
4. Email this information to service@hotkilns.com. We respond quickly to emails. If you also need a phone call, having this information first helps us assist you more efficiently.

Where to Find Nameplate Information

The kiln’s data nameplate is located outside the control panel. It lists the serial number, model number, voltage, phase, amperage, and wattage. Including this information with your request allows us to serve you faster and more accurately.

How to Request a Wiring Diagram

1. We can email you if you don’t have your kiln’s wiring diagram. Please provide the following:
   1. Model number
   2. Serial number
   3. Voltage information

The diagram helps diagnose electrical issues and is useful when speaking with tech support or an electrician.

Understanding Your Kiln Warranty

1. Warranty coverage depends on the model:
   1. Most kilns have a 3-year limited warranty.
   2. School-Master kilns have a 5-year warranty.
   3. Easy-Load and Bell-Lift kilns come with a commercial-use warranty.

Refer to your instruction manual or the warranty section of our website for complete details on coverage and how to file a claim.

Common Kiln Problems and How to Handle Them

Here are the most common error messages and troubleshooting topics:

1. Error 1, Err1
2. Error D, ErrD
3. All Error messages on the DynaTrol
4. Adjusting and Calibrating the DynaTrol for More Accurate Firing
5. What to do if the kiln fires slowly?

Application Support and Firing Help

We offer limited support for firing techniques, clay bodies, or glazes. For application-specific help:

1. Contact your clay or glaze supplier—they often have the best firing guidelines.
2. Visit our External Links page for trusted educational resources and firing advice.

Using a Digital Multimeter for Troubleshooting

We recommend having a digital multimeter on hand. Choose one that:

1. Can test up to 250 volts AC and 28 volts DC
2. Measures resistance in ohms (0–200 range)
3. Displays results with at least one decimal place
4. Knowing how to test voltage, resistance, and continuity will help you identify issues and avoid unnecessary repairs.

When to Involve an Electrician

Some issues require live testing with the kiln hot and running. If you need an electrician, follow these steps:

1. The kiln should be hot and exhibiting the issue during the test.
2. Schedule the electrician so our technical support team is available by phone.
3. Let us know the expected date and time so we can coordinate.

Best Practices for Long-Term Kiln Health

Preventive maintenance can save time and money. When servicing or upgrading your kiln, we recommend:

1. Replace all elements if one fails, especially if they’re aging.
2. Replace all thermocouples and their wires.
3. Update contactors, relays, and terminal screws every 10–15 years.
4. Rebuild older kilns every 15–20 years for optimal performance.
5. Be proactive—delaying maintenance increases the risk of further damage and unsafe operation.