Troubleshooting the E-25 Heat Amps Too High Error Code

Overview

The E-25 Heat Amps Too High error occurs when an amp draw is higher than 38 is detected by an amp sensor(s). The error will not show until two seconds after there is a demand for heat. This error will disable the heating system. The error can be acknowledged by the user, causing it to disappear and resume normal operation, but it will likely immediately appear again if high amps are detected again.

E-25 Errors

• E-25U: Indicates a high amps condition in the upper heater.

• E-25L: Indicates a high amps condition in the lower heater.

• E-25M: Indicates a high amps condition in both heaters.

When the E-25 amps too high error occurs, the amp draw ratings for the heating element with the issue will be displayed on the screen. The high amp value will be flashing. If the high amp value is flashing on the middle display, this would indicate an issue with the upper heater. If the high amp value is flashing on the lower display, this would indicate an issue with the lower heater. If both middle and upper lines have a flashing value, then there are issues with both heating elements. For a heating element, where the amp draw readings are within range, the display will only show dashes "---". When the error is recorded in the error log, only the highest amp value will be shown next to the E-25 code.

For example, "E-25U Heat Amps Too High, 41 amps"

Call Avoidance

To help the end user resolve the issue without a service call:

• Verify the power cords are plugged into the correct outlet.

• Ask the user if the fryer recently had an element replaced. If the wrong element was installed it could cause a false error.

Field Troubleshooting

If call avoidance steps do not resolve the issue, proceed with the following field troubleshooting steps.

Recommended Parts

CFE 5XX Open Fryer Series

• Heating elements
• Contactors
• Amp sensors
• Bus bars
• Wire

Recommended Tools

• Basic hand tools (screwdrivers, pliers, etc.)

• Multimeter

• Amp clamp

Checking the Heating Elements and Amp Sensors

1. Check Error Log and Amp Sensors:

   • Look for a low amps E-25 error message. This check may help to narrow down if the issues are isolated to an upper or lower heating element to more quickly pinpoint the fault. You can also see amp readings, 32 amps is nominal.

   • If one or more of the readings are higher than 38 , follow steps below to check amp sensors first, otherwise continue with Step 2.

     • Disconnect power from the fryer.

     • Lower control panel.

     • Disconnect power to control by removing connector P2.

     • Unplug amp sensors and check resistance of each sensor. Sensors should be 33 Ohms +/- 10% (Cold Check). If any one of the sensors is outside of this range, replace amp sensors.

       

       

2. Check Incoming Voltage:

• Verify line voltage is present and correct between all three phases at both the incoming side of the primary and secondary contactors for the respective heater for a E-25 U or L error, or all contactors for a E-25M error. If voltage is incorrect, verify the outlet voltage is correct.

• Resolve voltage issues at the restaurant side.

3. Check Amp Draw to Heater(s):

   • Verify there is no damage to heater wires or contactors. Heater wires and contactors are located at the rear of the fryer.

   

   • With power switch turned on and a demand for heat check amp draw at each heating element wire from top of contactor. There should be 18.5 amps present on all six wires when there is a demand for heat. If your amp draw exceeds the trip threshold, check the connections. If connections are not damaged and tight, replace respective heater.

Other Possibilities

• Place amp clamp onto amp sensor(s). If your reading is +/- 10% of the reading on the control, perform amp calibration.