Merrychef eikon e4s
Larger-cavity rapid-cook oven with two magnetrons, impingement and convection. Same QTS touch screen and SRB board layout as the rest of the eikon family.
What it is: High-speed combination oven. US-market e4s (208 V / 240 V 60 Hz).
Key combo: Tap top-right of the splash screen to skip preheat, enter the user password, tap the spanner, enter the service password.
Merrychef eikon e4s error codes
| Code | Meaning | Likely cause | How to reset |
|---|---|---|---|
| E101 | Magnetron failed to energize (current outside tolerance) | Faulty part in the microwave circuit | Critical. Clears on power cycle once fixed. |
| E102 | Heater current wrong | Over 1 A with heating off, or under 1 A with heating on: element or wiring | Critical. Clears on power cycle. |
| E103 | Controls area over 70 °C | Cooling fan failed or wired wrong, hot inlet air, blocked inlet filter | Clears when the controls area is below 60 °C. |
| E104 | Magnetron or cavity overheat thermostat open | Cooling fan, failed SRB, magnetron, wiring, blocked filter | Stays until the magnetron cools or the cavity stat is reset. |
| E105 | Supply frequency high or low | Mains supply or wiring | Clears on power cycle. |
| E106 | Cavity 25 °C above set point | Cavity fire, failed convection fan, missing or loose impeller | Clears on power cycle. |
| E107 | QTS to SRB communication lost | Cable unplugged or damaged, faulty QTS or SRB | Clears on power cycle. |
| E108 | Wrong or no personality module | Module changed, wrong or removed | Clears on power cycle. |
| E110 | SRB firmware not compatible with QTS | QTS updated but SRB not | Update both. |
| E111 | Cavity sensor open circuit | Thermocouple not connected or broken, failed SRB | Clears on power cycle. |
| E112 | SRB ambient sensor failure | Shorted sensor on the SRB | Replace the SRB. |
| E113 | Magnetron running without request (over 1 A) | Shorted triac, diode or relay on the SRB | Replace the SRB. |
| E116 | Heater off on request (cavity not at 100 °C in 30 min) | Heater element failure | Repair, then reset. |
| E117 | Magnetron overheat stat opened while running | Blocked filters, hot site, near a heat source, failed magnetron | Stays until the magnetron cools or the stat resets. |
| Door open warning | Door open more than 1 minute | Door left open, door switch, SRB, wiring | Clears when the door closes. |
| Air filter removed | Filter not fitted | Reed switch, SRB, wiring | Clears when the filter is refitted. |
How to enter service mode
- Switch on and tap the top right of the splash screen to skip preheat.
- Enter the user password and tap OK. Settings opens.
- Tap the spanner symbol.
- Enter the service password and tap OK to reach the error log, service information and tests.
How to use the service menu
- Check the Error log for logged faults.
- Check Oven counters for component usage and the controls area temperature.
- Use Visual View to watch the main components working.
- Run the oven tests and then the recommissioning test after any repair.
Notes
- E114 is listed as not used.
For licensed technicians only. This equipment can involve mains voltage, high-voltage microwave circuits, gas and refrigerant. Isolate power (and gas) before opening panels, follow the manufacturer's manual and your local licensing rules (for example ARC refrigerant handling and electrical or gas licences). Wrong settings can spoil food or damage equipment. Check every value on the unit in front of you before changing it.
Based on: Merrychef eikon e4s service and parts manual (32Z3871 US, issue 3). Always check the manual for your exact model and software version.
ServiceModes is not affiliated with Merrychef or any other manufacturer. Written in our own words from the manufacturer's documentation.