Question about Hayward 11kw Electric Spa Hot Tub Heater Cspaxi11 ()
When the heater is switched ON, the red light indication comes ON, but, the water isn't getting heated. Then i disconnected the electrodes and found that there is no continuity between the electrode terminals which indicates that the electrodes are faulty. I removed the electrodes and found that there are some holes present on it (i.e. bursted). I replaced them with the new electrodes but after 5 months the same problem re-occurred. Again the heater elements bursted. Need to find a permanent solution to this.
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Posted on Jan 02, 2017
sounds like a flame sensor.remove ignitor assembly and clean with fine emory cloth or steel wool.when properly cleaned it should feel smooth for entire length of sensor
Posted on Jun 21, 2009
hayward millivolt htrs are very difficult to light manually.i'm assuming your piezo ignitor is mal-functioning.use a grill lighter withn a goose neck and follow aluminu pilot tube to pilot hood
Posted on Jun 21, 2009
Try cleaning your filter if dirty there will not be enough flow to llet heater fire. If filters clean you can try jumping the pressure switch.
Posted on Jun 25, 2009
I just solved this about an hour ago. It's the connection from the circuit board to the ignitor. The same thing happened to me that it ran a long time and then it wouldn't. At some point it loses spark. The large wire from the board to thee= ignitor is the culprit. Take the ignitor out and press the two electrodes to about 1/4"-3/8max. Clean the surface plate where it meets the heater and also clean the brass piece on the othe end. Then clean the brass piece on the circuit board. Slide the 2 boots down a little and expose the receptacles. Press them a little with pliers, put them on their respective connections and then slide the boots back on. It started right up and has been running since! This after I bought a new gas valve $178! Let me know if this does it for you.
Posted on Aug 08, 2009
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Jan 15, 2015 | Water Water Heaters
These two lights indicate a fault in the heating circuit.
You would require to have access to and be able to use a multimeter to test the heater if the machine isn't actually heating the water.
If it is heating the water then obviously we know the fault isn't with the heater.
Check the heater first.
Take the door apart and check the wiring in the door isn't broken.
If everything checks ok, take the pcb out, look for burned or dry joints around the relays.
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