Installation & User Guide SHOWER PUMP - QS Supplies

Symptom5. Pumpswitches offwhile in use(continued)Cause(d) Motor fault.Rectification1. If free movement:-- if motor winding and bearings aresatisfactory, renew capacitor.- test continuity of motor windings.If no continuity, short-circuit existsin windings (non-serviceableassembly). Renew Mira Enduropump.If no free movement:-- refer to 4(b).- probable motor bearing failure (nonserviceableassembly). Renew MiraEnduro pump.6. Leak frompumphousing.(a) Seal worn/damaged.(b) Inlet pressureabovemaximumpermitted1. If leak is from rear of impellerhousing, at junction with motorassembly, mechanical seal requiresrenewal.2. If leak is from perimeter of impellerhousing, then housing seals requirerenewal.3. See Specifications on page 8.Note 1. Flow-switch continuity should be checked with power switched off and oneflow-switch lead disconnected. Use appropriate continuity meter. Correctoperation is open circuit with no flow, and closed circuit with flow.Note 2. Fitting a check valve is a secondary measure, initially the cause of watersurge should be investigated and rectified. The single check valve should be ofspring-loaded pattern and fitted in discharge pipework. This may increase the minimumhead pressure required to operate flow-switch.20