03-17-2026, 05:29 AM
I spoke to Newell.
Yes, older era Newells used the Canfield Connector/MAC Valve combo.
Yes the NEW Canfield Connector doesn’t not function like the original devices even though they share the same part number.
The BLUE WIRE (bay door open lockout) provides a Ground. The ground tells the Canfield the bay door is shut and to energize the MAC solenoid.
I could have been seeing solenoid voltage back-feeding through the blue wire when the door was open and solenoid energized.
The “TIMER” function serves as a safety mechanism:
If the door does not rotate to the closed position and complete the raise/lock sequence within the preset timeframe, the Canfield timer will expire due to a lack of confirmation from the horizontal and/or vertical microswitches. Upon timeout, the system interprets this as an incomplete or obstructed close cycle and will automatically reverse operation, causing the door to reopen.
1) One of the horizontal micros switch is used to confirm the door rotated to the closed position (micro switch with the Orange wire).
2) The vertical micro switch indicates when the door has raised into the frame locks (Green wire).
The second horizontal micro-switch is used for the stairwell light and retractable steps (completes the circuit ground?).
There are updated door control electronics/relays available.
Yes, older era Newells used the Canfield Connector/MAC Valve combo.
Yes the NEW Canfield Connector doesn’t not function like the original devices even though they share the same part number.
The BLUE WIRE (bay door open lockout) provides a Ground. The ground tells the Canfield the bay door is shut and to energize the MAC solenoid.
I could have been seeing solenoid voltage back-feeding through the blue wire when the door was open and solenoid energized.
The “TIMER” function serves as a safety mechanism:
If the door does not rotate to the closed position and complete the raise/lock sequence within the preset timeframe, the Canfield timer will expire due to a lack of confirmation from the horizontal and/or vertical microswitches. Upon timeout, the system interprets this as an incomplete or obstructed close cycle and will automatically reverse operation, causing the door to reopen.
1) One of the horizontal micros switch is used to confirm the door rotated to the closed position (micro switch with the Orange wire).
2) The vertical micro switch indicates when the door has raised into the frame locks (Green wire).
The second horizontal micro-switch is used for the stairwell light and retractable steps (completes the circuit ground?).
There are updated door control electronics/relays available.
Kristi & Jeff King
Bentonville, Arkansas
#744 2005 45’ Newell Coach
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