28
10. MAINTENANCE
ATTENTION: Automatic resets may allow the pump to restart without warning. Always
disconnect the pump motor from the electrical supply before maintenance or repairs.
When servicing or attending pump and/or controllers, always ensure power is switched
off and lead unplugged. Electrical connections should be serviced only by qualified
persons. If the electrical supply lead of this pressure system is damaged, it must be
replaced by the manufacturer, or an appointed representative. Under no circumstances
should the DynaDrive be disassembled by other than qualified tradespersons. Failure to
observe this warning may expose persons to the possibility of personal injury and may
also result in damage to other property.
IMPORTANT: Do not use hydrocarbon based or hydrocarbon propelled sprays around
the electrical components of this pump. During servicing, use only approved, non-
petrochemical based o-ring and gasket lubrication. If unsure, consult your Davey
representative for advice. For protection, DynaDrive monitors input current and will shut
down the pump motor in the event of an over load.
10.1 Periodic pressure tank checks
Depending on the quality of the pumped water, from time to time your tank may require flushing to remove
settled fines such as mud or sand. If sand, or mud can stay in the tank it will accelerate wear on the internal
lining and shorten your tanks life. Safely disconnect the tank from the water supply, discharge all air from the
tank and flush the tank several times with clean water. Once the flushing water is clean, reconnect the tank
and recharge the air as described in the pressure tank section of the installation chapter.
A tank in good order will not leak, but over time due to damage through rough handling, impacts or grit and/
or impurities in the water the tank shell may fail and/or leak. Should the tank leak or show signs of possible
failure the tank should be immediately disconnected and replaced.
11. TROUBLESHOOTING
Symptom
Potential Fix
• Fault light flashes on DynaDrive display;
• “A1 DRY RUN” shows on DynaDrive display;
• DynaDrive attempts restart after 5 minutes;
• DynaDrive attempts restart in 30 minutes
intervals, for 25 hours;
• DynaDrive then reverts to solid alert with no
further retry.
• Dry run alarm (non boosting)
DynaDrive has run dry or lost prime. To protect
itself, DynaDrive has switched off. Before trying
to restart: turn off the DynaDrive for 30 seconds;
ensure the pump has cooled down (if hot); then
restart as per section 6 of this manual. If problem
persists, contact your Davey representative via
the details at the end of this manual.
If the pump exhibits Dry run alarm in applications
that are not mains boosting, adjust the pump
maximum pressure setting down by 10psi
increments until issue subsides.
Note: pressure tank adjustment to 70% of set
pressure will be required.
• “A5 TRANSDU”
Transducer is disconnected from the Drive.
Reconnect the pressure transducer to the quick
connect cable attached to the pump.
Summary of Contents for DynaDrive DD15-35NPT
Page 31: ...31...
