background image

Possible Cause 3: 

The ‘Thermal safety cut-out’ has tripped. 

 

Remove  button  cover  and  press  red  button  as  far  as  possible  to       
re-set (see Fig. 6). If a positive click is felt, the cause of the tripping 
must be investigated and could be caused by a debris build-up or air 
pocket trapped inside the flow tube of the heater. 

 
 
 
 
 

  
  
 
 
 
 
 
 
 
 
 
Fig. 6

 

 

 

 

Heater is tripping circuit breaker (MCB) after few minutes/ hours of operation: 

 

If the heater is faulty it will instantly trip circuit breaker (MCB). The most likely causes of tripping the 
breaker after a period of time are: 

 

Possible Cause 1:  

Faulty circuit breaker. 

Possible Cause 2: 

Incorrect size of the

 

circuit breaker. 

Possible Cause 3:  

Cross section of the cable is not sufficient. 

Possible Cause 4:  

Loose connection(s) of the power supply cable. Check both ends of 
the  power  supply  cable  (at  the  distribution  box  and  at  the  heater 
terminal block). 

 

Remedy: 

Contact an Electrician to check installation and protection. 

 

 

Heater is tripping circuit breaker (MCB) or RCD instantly: 

 

Possible Cause 1:  

Short circuit caused by the wiring or faulty components. 

Possible Cause 2: 

Heating element is going to ground or is damaged. 

Possible Cause 3:  

Moisture inside the heater. 

 

Remedy: 

Send the heater back to the manufacturer. Use the return form on 
page 13 or download it from the Elecro website. 

 

 

Power supply cable is getting very hot: 

 

Possible Cause 1:  

Cross section of the power supply cable is not sufficient. 

Possible Cause 2:  

Loose connection(s) of the power supply cable. Check both ends of 
the  power  supply  cable  (at  the  distribution  box  and  at  the  heater 
terminal block). 

 

Remedy: 

Contact  an  Electrician  to  check  installation.  Inspect  for  loose 
connections and upgrade the power supply cable to a bigger size if 
necessary. 

Summary of Contents for Nano SPA Heater

Page 1: ...Nano SPA Heater Installation Operating Manual...

Page 2: ...ion 4 2 2 Pipework 4 2 3 Flow direction 6 2 4 Electrical connection 6 2 5 Power requirements 7 3 OPERATING INSTRUCTIONS 7 3 1 Flow requirements 7 3 2 Water quality 7 4 TROUBLESHOOTING 8 5 MAINTENANCE...

Page 3: ...of trouble free service please read and follow these instructions for proper installation maintenance and use Incorrect installation will affect the warranty WARNING Failure to install the unit correc...

Page 4: ...of the heater The unit must not be covered to allow adequate ventilation The heater must be installed within a dry permanent weather proof area In any case where water or moisture enters the enclosur...

Page 5: ...letely full of water during operation the return pipe which carries the water back to the pool must incorporate a safety loop or kick up in the pipe as close as possible to the heater see Fig 3 NOTE W...

Page 6: ...ecause of the ridges in the pipe it will not squeeze down tight It will need to be sealed with a bathroom type mastic sealant 2 3 Flow direction The heater can accept the flow of water from only one e...

Page 7: ...ax 4 5 mg litre Total Dissolved Solids TDS Calcium hardness 200 1 000 ppm The permitted salt concentration is dependent on the model of heater purchased Incoloy 825 heating element Zero salt content p...

Page 8: ...the test i e with the heater red light On To avoid inaccurate results when performing this test it is important to refrain from using other high current consuming appliances in the property such as tu...

Page 9: ...ble Check both ends of the power supply cable at the distribution box and at the heater terminal block Remedy Contact an Electrician to check installation and protection Heater is tripping circuit bre...

Page 10: ...ocess 5 MAINTENANCE We recommend annual maintenance and cleaning of the heater to ensure proper operation WARNING Before performing any maintenance on the unit isolate from the main power supply The h...

Page 11: ...Proof of purchase may be required The manufacturer will not be liable in cases of incorrect installation of the heater inappropriate use or neglect of the heater Any damages occurred due to shipping m...

Page 12: ...12 8 WIRING DIAGRAMS Nano SPA 1 2 and 3 kW Nano SPA 4 5 and 6 kW Nano SPA 8 kW...

Page 13: ...Hertfordshire SG1 2BH United Kingdom __________________________________________________________________________________ Customer Information ATTACH TO HEATER Company Name Contact Name Daytime Telepho...

Page 14: ...14...

Page 15: ...15 Notes...

Page 16: ...11 Gunnels Wood Park Stevenage Herts SG1 2BH Sales elecro co uk www elecro co uk 44 0 1438 749474 Copyright V01 2019...

Reviews: