12Failure to undertake regular maintenance may cause damage notcovered by warranty.Power supply to this pump needs to be through an isolating transformeron RCD, having a rated operating current not exceeding 30mA.Trouble ShootingIf the pump runs but there is no water flow or water flow is reduced,the following condition may apply:1. The filter requires backwashing or it is blocked. Refer to the relevantsection in the Filter Manual.2. The pump is not primed. Re-prime as per instruction in ‘Starting the pump’3. There are air leaks in the suction piping. Check all piping and eliminateleaks, also check for a loose strainer basket lid. Air bubbles in the waterflowing back to the pool would indicate a leak in the suction to the pumpallowing air to enter the pipework.4. A leaking pump shaft seal may also prevent operating. Evidence of thiswould be water on the ground under the pump.5. The pump is not able to get water from the pool. Check that the valves to thepump are fully open and that the pool water level is up to the skimmer box.6. Blockage in the piping or pump. Remove the strainer basket and checkfor any blockage to the pump impeller entry. Check the skimmer box forblockage.If the pump does not operate, the following conditions may apply:1. The power is not connected. For 240 volt only, check the power point byplugging in a portable appliance to ensure power is available. Also checkfuses and the main power supply switch2. Automatic overload is tripped. The pump has an in-built thermal overloadwhich will re-set automatically after the motor has cooled following anoverheating period. Determine the cause of the overload tripping andrectify. Re-set the pump by switching the power OFF for 30 seconds.3. Blockage is preventing the pump from rotating.4. Motor is burnt out - burning smell is evident. Replacement is required.If you are unable to resolve any installation or operation difficulties withyour PowerMaster ®, contact the supplier from whom the pump waspurchased or your nearest Authorised Davey Pool Equipment ServiceCentre. If any further assistance is required, contact the Davey CustomerService Centre at the address indicated in this manual.