Hot Tub Temperature Fluctuates
WARNING - This article is written for people needing some help troubleshooting or repairing their hot tub. If you do not have basic knowledge of electricity, do not work on your hot tub. Water and electricity do not mix and carry the risk of electrical shock. If you are not capable of performing a repair yourself, please contact a hot tub professional or licensed electrician. The wiring and equipment described in this article represent a typical spa pack. Your pack may vary significantly from the components described below. Again, if you are in doubt as to how to properly troubleshoot or repair your specific pack, please contact a local spa professional or licensed electrician. Use any of the information contained in this article at your own risk. Hot Tub Essentials will not be held liable for any injuries that may result from the troubleshooting or installation of any electrical components in your spa.
If you have no control over the temperature of your hot tub, here are a few things to look for:
-Ensure the high speed pump is not running for long periods as the friction of the water will raise the temperature.
- Measure the ambient air temperature of the spa cabinet. If you think the temperature is too high, leave the door open to confirm the problem. If the problem goes away when the door is open, use a timer on your spa pack or increase the ventilation of your spa cabinet. If the ambient air temperature is very low, increase the insulation around the equipment. Be careful not to place the insulation too close to the equipment, as this could be a fire hazard.
- Check the pressure switch and make sure the setting isn't too sensitive.
- Make sure the filters and skimmer baskets are clean and not causing a flow problem.
- Check for loose connections on the heater circuits.
- Check the thermostat. Makes sure the probe is all the way in the thermal well and the capillary is not kinked. If all else fails, replace the thermostat.