Ryan4988 Posted August 7, 2016 Report Share Posted August 7, 2016 So we got a Nordic hot tub that we converted to 110V. It wasn't heating to 104F and the highest we could get it was 97F. So we replaced the heater and we replaced the control pad. Still nothing. So we looked at the circuit board today and noticed the Hi Temp sensor wasn't plugged in. Today was the first day we have seen the red heater light on located on the key pad. It has been 6 hours and the temp is still at 93F (same as this morning) I'm frustrated. Anyone have any ideas on why it won't heat up to the set temp of 104F??? We also have the filter cycle set to F6. Thanks in advance. Any thoughts welcome! Ryan Quote Link to comment Share on other sites More sharing options...
Cusser Posted August 8, 2016 Report Share Posted August 8, 2016 I have to ask: you are using a spa cover, correct? If so, carefully check to see if 110VAC is getting to the heating element. Now, the heating element was also changed to 110V one, correct? Quote Link to comment Share on other sites More sharing options...
Ryan4988 Posted August 8, 2016 Author Report Share Posted August 8, 2016 Yes we are using a spa cover. Also yes I ordered a heater that was 110V. Today still at 93F and the heater light has been on. Quote Link to comment Share on other sites More sharing options...
Ryan4988 Posted August 8, 2016 Author Report Share Posted August 8, 2016 Tested the Voltage and it's all correct. Quote Link to comment Share on other sites More sharing options...
Cusser Posted August 9, 2016 Report Share Posted August 9, 2016 So you're getting 110 VAC to the heater element? I'd turn off electricity, disconnect the leads to the heater element, and read ohms resistance across the heater element. Quote Link to comment Share on other sites More sharing options...
Dr. Spa Posted August 9, 2016 Report Share Posted August 9, 2016 You need to put an amp meter on the heater. If it's getting voltage and not pulling any amps, you have a bad element (yes, new parts can be bad from the get go) Quote Link to comment Share on other sites More sharing options...
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