Pumps & Water Systems
Pump tripping on dry run
Booster set or process pump stopping after a dry run alarm
Safe preliminary checks permitted
Alarm logged as dry run or low flow
Likely causes
- · Suction isolating valve partly closed
- · Strainer blocked
- · Air lock after a supply interruption
Safe preliminary checks
- · Open the suction valve fully and confirm pressure at the inlet
- · Clean the visible strainer basket
- · Vent the pump body and restart once
When it needs a professional
Motor and seal replacement is a professional task.
Stop immediately if
- · Smoke, burning smell or water on live parts
- · Refrigerant leak, gas odour or pressure vessel noise