The cost to Replace a Spa Pack / Controls: Digital Spa Packs average $750. Control systems average$450. The cost to Replace Spa Jets: The cost to replace a spa jet varies from $20-$50 on average. The cost to Replace Spa Circuit Board: Hot tub PCBs range from $200-$600, with an average cost of $300. Anticipate a hot tub electrical cost of about $200 at installation, too. You could also be having issues with your spa controller, which handles the pump and blower. Controllers last about 10 years and come as part of a spa pack. If you choose to replace the whole pack, you’ll spend anywhere from $600 to $800. HomeAdvisor’s Hot Tub Cost Guide lists prices associated with installing a spa including labor and materials, as reported by HomeAdvisor customers. According to Popular Mechanics, a hot tub as the one described above would cost around $3,500 to$8,000 depending upon the total size and the number of jets and extra features. Average cost to repair a hot tub is about $700 – $2000 (annually, fixing of appliances, replacement of worn-out parts, and minimal upgrading of. While the cost to repair your hot tub depends on many factors, buying a high-quality from a reputable dealer is the best way to keep those. So, you will not incur additional electrical labor costs and installation is a piece-of-cake. Fill the spa with a garden hose, plug it in and enjoy. The total cost for installation will vary based on the hot tub you choose, the foundation needed, the delivery and transport requirements, the. Learn all about hot tub repair costs. Read general hot tub repair prices, tips and get free hot tubestimates. CostOwl.com.