Good morning. I’m having an issue with my gecko in.xe controller. Everything works excepts low speed pump. So because of that it’s not heating. Because heating and filtering go thru on low speed. When I press pump 1 for low speed I can hear a click but nothing happens. So I’m guess bad relay. I did the checks listed in the manual for verifying proper voltage and I’m not getting any. How hard is the relay replacement? I didn’t plan on spending 500$ on a new spa pack right now. Thank you