azfrog Posted July 22, 2010 Report Share Posted July 22, 2010 Hi, I have set the spa temp to 104F on my Aqualink RS4. The gas heater fires off, temperature climbs steadily until it reaches 95F. For some reason it will not go above 95F. I checked the temperature sensor which is only 6 months old and it is accurate. I must say I can't understand what is going on. Thanks in advance for your help AZfrog Quote Link to comment Share on other sites More sharing options...
imfignewton Posted July 22, 2010 Report Share Posted July 22, 2010 Check to make sure the heater is turned up to 104 on the heater. If the heater does not heat up to 104 for spa, switch to pool (on the heater) and turn the thermostat to 104 (for heaters with dual thermostats). Maybe the temp sensor needs to be calibrated at the indoor controller. Hope this helps Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted July 22, 2010 Report Share Posted July 22, 2010 Is this a Sta-Rite heater? Quote Link to comment Share on other sites More sharing options...
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