Autofry MTI Series Error Codes
Autofry ventless fryers allow operators to produce fried foods with minimal labor. Although these units are reliable, issues still occur on occasion. If your machine ever tells you that something’s wrong, this guide to Autofry MTI series error codes will help you make sense of what’s going on so you can solve the problem quickly and easily.
This article discusses both pre and post 2008 fault codes for MTI series units, such as the MTI-10.
A05 (Pre 2008)
Temp. Error - Not Ready for 30 Minutes (Post 2008)
Issue | Potential Fixes |
Hi Limit is tripped | Press the reset button under the heater |
Heater plug connection is damaged | Clean or replace the heater plugs |
Oil is dirty or low | Filter or add/change the oil |
A07, A08, PRB (Pre 2008)
Temp. Error - Excessive Change/Open Probe/Temp. Too High (Post 2008)
Issue | Potential Fixes |
Oil is low | Change or add oil |
Probe plug connection is dirty or damaged | Clean or replace the plugs |
Basket is overloaded | Don’t exceed the unit’s capacity |
Recovery time is insufficient | Allow the temperature to recover before using the unit again |
A04 (Pre 2008)
Basket Motor Error - Could Not Leave / Find Home (Post 2008)
Issue | Potential Fixes |
Basket adjustment is improper | Adjust the basket rod |
Food is sticking to basket | Replace the basket |
Basket cam is loose | Tighten the basket cam |
Secondary fuse is blown | Replace the fuse |
Product placed in unit too early | Don’t place food product in the unit until the READY light is illuminated |
Entry chute is opened before the unit is ready | Don’t open the entry chute until the READY light indicates that the unit is ready |
Gear or motorbox is damaged | Contact a technician to remedy the issue |
SFT (Pre 2008)
Safety Switch - Front Door/Charcoal Filter/Mesh Filter/Grease Filter (Post 2008)
Issue | Potential Fixes |
Front door is open | Close the door |
Door gasket is worn | Replace the door gasket |
Switch is dirty | Clean the switch |
Switch is defective | Replace the switch |
Safety Switch - Charcoal/Mesh Filter (Post 2008)
Issue | Potential Fixes |
Charcoal or mesh filter isn’t installed | Install the charcoal or mesh filter |
Charcoal or mesh filter is damaged | Replace the charcoal or mesh filter |
Safety Switch - Filter Cover Plate (Post 2008)
Issue | Potential Fixes |
Filter cover plate isn’t tight | Tighten the filter cover plate |
Filter cover plate is on backwards | Reinstall filter cover plate properly |
Safety Switch - Grease Baffle (Post 2008)
Issue | Potential Fixes |
Grease baffle isn’t installed | Install the grease baffle |
Grease baffle is damaged | Replace the grease baffle |
Safety Switch - Fire Damper (Post 2008)
Issue | Potential Fixes |
Fire damper isn’t installed | Install the fire damper |
Fire damper is damaged | Replace the fire damper |
Safety Switch - Fire System (Post 2008)
Issue | Potential Fixes |
Fire System discharged | Call the fire equipment company for service |
Fire System pressure is low | Call the fire equipment company for service |
For more information on how to care for your Autofry unit, be sure to take a look at the large library of Autofry manuals on our site.