Convotherm E70

What does Convotherm E70 mean?

Convotherm shows E70 — Main contactor error — on the maxx, maxx pro combi oven range. The manual lists these reasons: Appliance switch defective; Error in the safety chain. The control flags the fault and holds the affected function until the message is cleared.

Symptoms

• Display shows error code E70 (Main contactor error)
• The affected function is interrupted until the fault is cleared

Common causes

• Appliance switch defective
• Error in the safety chain

Diagnostic steps

1. 01

   Contact your service partner

   Contact the responsible service partner (make a note of the message on the display)

2. 02

   Firmly cycle the appliance switch OFF and ON

   Switch the appliance switch OFF and switch it ON again with sufficiently firm pressure If the error recurs, contact the responsible service partner

When to call a professional

The manual routes E70 (Main contactor error) to the responsible Convotherm service partner. Note the exact message on the display, stop using the affected function, and call a qualified technician — board, sensor and electrical diagnosis on a combi oven involves live components.