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 113: Magnetron Operates Uncommanded
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 eikon e4s unit, error E 113 indicates the magnetron is operating without being commanded, typically caused by a short circuit in a triac, diode, or relay on the SRB (Smart Resonator Board). This presents a significant safety hazard due to uncommanded microwave emissions. Immediately power down the unit and contact a qualified technician for urgent diagnosis and repair.
Technical Details
Repair Steps:
- Safety First: Immediately power down the MERRYCHEF eikon e4s unit by disconnecting it from the main power supply. Do not attempt to operate the oven further. Uncommanded magnetron operation is a serious high-voltage and microwave radiation hazard that requires immediate attention.
- Access Components (Qualified Technician Only): Only a qualified and certified technician with experience in high-voltage microwave systems should proceed. Remove the external panels to access the internal components, particularly the Smart Resonator Board (SRB), magnetron, and associated power control components.
- Visual Inspection of the SRB: Carefully inspect the Smart Resonator Board (SRB) for any visible signs of damage, such as burn marks, swollen capacitors, or discolored components. Pay close attention to the area around the Triac, Diode, and Relay responsible for magnetron control.
- Test Triac/SSR: With the unit completely de-energized, use a multimeter to check the Triac (or Solid State Relay, if present) that controls the magnetron. A short circuit will typically show very low or zero resistance across its main terminals when it should be open. Replace the faulty Triac/SSR if a short is confirmed.
- Test Diode(s): Check any associated Diodes on the SRB or in the magnetron power circuit for short circuits or open circuits. A shorted diode can cause incorrect power routing, leading to uncommanded magnetron activation. Replace any faulty Diode(s).
- Test Control Relay: If a mechanical Relay is used in conjunction with or instead of a Triac for magnetron control, test its contacts for a welded-closed condition (short circuit). If the relay contacts are stuck closed, it will continuously energize the magnetron. Replace the faulty Relay.
- Inspect Magnetron Cavity Thermostat (Cavity Stat): While not the primary cause of uncommanded operation, ensure the Cavity Thermostat (cavity stat) is functioning correctly. A faulty thermostat might prevent the system from registering critical temperatures, but typically wouldn’t cause a short. However, the error message implies it should be checked.
- Verify Wiring and Connections: Inspect all wiring harnesses and connectors between the SRB, magnetron, and main control board for loose connections, damage, or signs of arcing which could contribute to intermittent shorts.
- Replace Smart Resonator Board (SRB): If individual component testing (Triac, Diode, Relay) is inconclusive or if multiple components are suspected, the most effective and safest solution is often to replace the entire Smart Resonator Board (SRB). This board integrates the complex power control for the magnetron, and a fault on any of its power components warrants a full board replacement for reliability and safety.
- Post-Repair Testing: After replacing components or the SRB, carefully reassemble the unit. Power it on under strict supervision, observing for any immediate faults or unusual operation. Conduct a thorough functional test, ensuring the magnetron only activates when requested and deactivates correctly.
Common Questions:
Q: What causes the MERRYCHEF eikon e4s E 113 error?
A: This error indicates the magnetron is turning on without a command, usually due to a short-circuited triac, diode, or relay on the Smart Resonator Board (SRB). These components are critical for controlling the magnetron’s power supply.
Q: Is it safe to continue using the oven with an E 113 error?
A: Absolutely not. An uncommanded magnetron poses a serious safety hazard due to uncontrolled microwave emissions. Immediately power down the unit and do not operate it until a qualified technician has performed repairs.
Q: Can I fix the E 113 error myself?
A: Due to the high-voltage nature of microwave systems and the complexity of the Smart Resonator Board, troubleshooting and repair should only be attempted by a certified and experienced commercial kitchen equipment technician. Incorrect repairs can lead to further damage or severe injury.
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.