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7.0 TROUBLESHOOTING
This section describes possible problems that could be encountered with your Murzan pump, as
well as a list of possible causes and solutions. Contact Murzan for additional support.
Pump will not cycle
Check for adequate air supply (air pressure and volume)
Check for blocked product chamber, suction line, or discharge lines
Check for torn diaphragm, damaged Assembly A or warped outer piston
Pump stops during Operation
Check for torn diaphragms or loose inner/outer pistons
Check for worn pump Assembly A or Assembly B
Check that sensors are properly connected
Check for blockage in valves, product chamber, suction line, or discharge lines
Pump cycles but has no product flow
Check for suction side air leak or blocked suction line
Check for worn block gaskets (as they may result in air leaks)
Check for blocked, stuck, or missing suction or discharge check valves
Pump cycles but has low product flow
Check for adequate air supply (air pressure and volume)
Check for suction side air leak or partial blockage suction line
Check for blocked, stuck, or missing suction or discharge valves
Check for worn pump Assembly A or Assembly B
Check for worn block gaskets (as they may result in air leaks)
Check that the air filter in the center block is free of debris
Check that the muffler is free of debris
Product comes out of air exhaust
Check for loose inner/outer pistons
Check for warped inner/outer pistons
Check for punctured diaphragms
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