Montague Induction Range Error Code E05: Rotary Switch Error
E05 on a Montague Legend induction range, or five short flashes, means there is an error on the rotary power switch. The unit stops working immediately. The manual says to contact a service agency, so leave the unit off.
High: the unit stops immediately and will not run until the switch is checked.
What does Montague error code E05 mean?
The induction zones on this range are set with a rotary power switch, and the control reads the switch position to know what power level you want. If the control gets a reading from the switch that makes no sense, or no clear reading, it stops the unit rather than guess at a power level. It shows E05, or five short flashes on the indicator lamp. The manual's troubleshooting chart on page 13 describes the cause as an error on the rotary power switch, states that the unit stops working immediately, and gives one action, which is to contact a service agency. It lists no other causes and no operator steps. That makes sense: there is little an operator can safely inspect on a switch connected to the control. It also does not say if the switch itself is worn, mechanically jammed or only reading wrongly.
Affected models and control systems
Montague Legend electric ranges with induction units: V136EO-4I, C36-4I, RB-36-SC/R, 36-4I and M36-4I. The manual lists E05 in the Troubleshooting Chart with Error Code and Indicator Lamp Flash Code on page 13, with an induction note on page 9.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- E05 shows, or the lamp gives five short flashes
- The zone will not heat at any knob setting
- The knob feels loose, gritty or does not click normally
Possible causes
Listed in Montague's documentation
- Error on rotary power switch
Other likely causes — what usually sits behind error code E05 on this control. A technician confirms which one it is before any part is replaced.
- Switch contacts worn or dirty, giving an unreadable signal
- Knob loose on its shaft, so the position is read wrongly
- Switch connector loose or heat-damaged behind the panel
Safe checks before calling for service
- Turn the knob fully to off, wait a moment, and see whether E05 clears.
- Check that the knob sits firmly on its shaft and turns smoothly. Do not pull it off.
- Do not force the knob or use sprays on the switch.
- Leave the unit off if E05 returns, and note which zone's knob it concerns and the flash pattern for the service call.
How a technician diagnoses error code E05
- Read the code and note which zone's switch is involved.
- Check knob feel, travel and alignment on its shaft.
- Check the switch's connector and wiring behind the panel for looseness or heat marks, with the unit isolated.
- Measure the switch's output across its positions with a meter.
- Replace the switch or the connector only after it fails the test, then verify all power levels.
- The rotary switch and its wiring are behind the panel, close to live supply wiring.
- Testing the switch across its positions needs the unit opened and powered by a technician.
How error code E05 differs from similar codes
E05 is a switch reading error and stops the unit. E01 and E02 are pan messages and leave the unit working.
Technical reference
- Document
- Montague Legend Electric Range, Operation Manual, Installation/Operations
- Edition
- No revision printed (file name: Final-Submission; listed on montaguecompany.com/manuals in 2026)
- Models / control
- Legend Electric Range V136EO-4I, C36-4I / RB-36-SC/R, 36-4I, M36-4I (induction units)
- Section
- Troubleshooting Chart with Error Code / Indicator Lamp Flash Code, printed p. 13; induction fault note p. 9
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Montague range error codes
Can I still cook with E05?
The manual says the unit stops working immediately, and says to contact a service agency.
Is the knob broken?
Possibly, but the manual only says there is an error on the rotary power switch. A technician has to test it.
Will a restart clear it?
The manual gives no reset. Turning the knob to off may clear a one-time glitch, but a worn switch will bring it back.
Need help with Montague error code E05?
A technician confirms the cause on site and gives you the price in writing before any work starts.