Report this forum post

-11
The START switch is closed when the key
switch is closed and voltage is applied to the
control card
Indication of Fault
Forward or Reverse contactor will not close.
Possible Cause
START switch needs adjustment or is damaged.
Input voltage must be less than 60% of battery voltage
when the key switch is closed. Replace or adjust the
START switch.
Short-circuit between battery positive and TB2 in
START switch circuit.
Disconnect the wire from TB2. Check for a
short-circuit between the end of the wire and the
battery positive. Resistance must be greater than 4.7
K ohms.
Control card malfunction.
Disconnect the wire from TB3 and measure the
voltage from TB3 to battery negative. If the voltage is
not zero, replace the control card
  • Posted 30 Mar 2011 08:32
  • By geroj
  • joined 21 Feb'10 - 262 messages
  • Krivan, Slovakia

This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.

Indicates mandatory field
Movers & Shakers
James Brown James Brown
Chief operating officer, Bulldog Battery Corporation
Commercial excellence roll-out manager, TVH Parts
President EPG Americas, Ehrhardt Partner Group (EPG)
CEO, Duravant
Maxlion FD30
Hangzhou, China
New - Sale
Taylor TX175
Coraopolis, Pennsylvania, United States
New - Sale & Hire
Upcoming industry events …
March 3-7, 2026 - Las Vegas, NV, United States
January 28-30, 2026 - Bangkok, Thailand
31 March 2026 - Dubai, United Arab Emirates
Latest job alerts …
Bensenville, United States
Bensenville, United States
Monmouth, IL, United States
Movers & Shakers
James Brown James Brown
Chief operating officer, Bulldog Battery Corporation
Commercial excellence roll-out manager, TVH Parts
President EPG Americas, Ehrhardt Partner Group (EPG)
CEO, Duravant