The game will not reset properly and the ball release coil stays energised, though the points stepper looks clean and works.

Ball release coil stays on: burnt wires behind a stepper plate

Cause: The thin wires on the back of the stepper's bakelite plate, linking rivets to edge solder lugs, have burnt open from the ball release coil being held on.

Checks

• Remove the bakelite plate and inspect the wires on its back.

Fix

• Replace the burnt links with heavier wire.

Systems

• Electro-mechanical

Games

• Daisy May

Related tips

• Players, credits or ball count not resetting points to a stepper unit
• Game won't start though credits and reels reset: bad joint on the latch coil
• Ball count drops by one as the first ball is served: stuck 10-point playfield switch
• Relay banks and their reset coil
• Faults that point to a stepper unit
• Stepper cleaning, part 4: refit and test
• Cleaning and aligning an EM stepper unit
• What the Gottlieb reset bank does and which relays to clean

Source: Repairing Electro-Mechanical (EM) Coin Operated Games to 1978, Part One, Clay Harrell (pinrepair.com)