Error Code
high
Merrychef e4s – Error 116: Heater Off On Request
On your eikon e4s unit, error code 116 "Heater Off On Request"…
Merrychef e4s - Error E 105: Supply Frequency High / Low
Critical / Stop Operation
Warning: The information provided here is for educational purposes only.
Working with commercial kitchen equipment involves high voltage, gas, and high temperatures.
We strongly recommend contacting a certified service technician for any repairs.
We are not responsible for any damage or injuries resulting from DIY repair attempts.
This information is provided 'as is' without any guarantees of completeness or accuracy.
TLDR
On your MERRYCHEF eikon e4s unit, error E 105 indicates the power supply frequency is outside specified limits, detected by the oven's System Relay Board (SRB). This critical fault points to issues like incorrect mains voltage, poor internal or external wiring connections, or a defective SRB. Immediate diagnosis of the electrical supply and internal components is crucial for resolving this error.
Technical Details
Repair Steps:
- Verify Mains Power Supply: Safely disconnect power to the oven. Using a multimeter, measure the incoming mains voltage and frequency at the main power connection point. Compare these readings against the specifications listed on your oven’s data plate (typically 50Hz or 60Hz ± a small tolerance, and specified voltage). Ensure the mains supply is stable and within the acceptable range. Fluctuations can trigger this error.
- Inspect External and Internal Wiring Connections: With the power still disconnected, meticulously inspect all external wiring connections from the main power source to the oven’s terminal block for looseness, corrosion, or damage. Then, remove the oven’s access panels and carefully examine internal wiring, especially connections leading to and from the System Relay Board (SRB). Pay close attention to any burnt spots, frayed insulation, or insecure terminals. Re-seat or tighten any loose connections.
- Check the System Relay Board (SRB) for Faults: If mains power and wiring appear correct, the System Relay Board (SRB) itself may be faulty. The SRB contains the frequency sensor. Look for any visible signs of damage on the SRB, such as burnt components, bulging capacitors, or unusual odors. If no visible damage is present, and power/wiring are verified, the SRB’s frequency sensing circuit may be defective. In such cases, the SRB will likely need replacement.
- Test and Monitor: After performing the above checks and making any necessary repairs or replacements, restore power to the oven. Monitor the display for the E 105 error. If the error persists, it may indicate a deeper electrical system issue requiring a qualified electrician or Merrychef service technician.
Common Questions:
Q: What exactly does MERRYCHEF eikon e4s error E 105 signify?
A: Error E 105 on your MERRYCHEF eikon e4s indicates that the frequency of the incoming power supply is either too high or too low, falling outside the oven’s specified operational parameters. This critical error is detected by the System Relay Board (SRB).
Q: Why is the power supply frequency critical for my eikon e4s oven?
A: The power supply frequency is vital because it directly impacts the operation of the oven’s internal components, such as motors, transformers, and control systems. An incorrect frequency can lead to component malfunction, overheating, or inaccurate operation, hence the oven’s safety shutdown to prevent damage.
Q: Can I reset error E 105 and continue using my MERRYCHEF eikon e4s?
A: No, error E 105 is a critical fault that requires addressing the root cause. While power cycling may temporarily clear the message, the underlying issue with the power supply frequency will persist and prevent safe, proper operation. Continuing to use the oven with an unstable frequency can cause severe damage or pose a safety risk.
When to call a technician
For this error, we recommend calling a certified technician. Do not continue operation or attempt repair yourself.
- Equipment shows a critical or stop-operation fault.
- You smell gas, burning, or see smoke or sparks.
- Error returns after following the steps above.
- You are not trained to work on this equipment.
- Warranty or safety could be affected by DIY repair.