Hi, we recently installed a Balboa GS100 system into a Hotspring Hotspot spa as a replacement for the original gear and we can't get it to control the heat properly. It's generally overheating and running too hot and occasionally has tripped out onto 'HH' after getting up to 43 deg C. Here are the main points of note:
GS100 heating system
Mini oval 3 button Balboa touchpad
Dip switches are: 1 + 2 Off, 3 On, 4 Off, 5-10 all On (yes, we reset persistent memory)
The 2 speed pump doesn’t go on low speed so is wired to run on high speed (PCB outputs are joined together at the motor plug) when heating and when the pump is selected on the touchpad (this is why 5 and 9 are both On to limit run time to 30 mins when left on) (Advice I’ve received is that although not ideal this set up will work ok and won’t overheat the spa through friction.)
AND SOMETHING THE CUSTOMER JUST TOLD ME, initially when we first got the spa going it controlled the heat ok, it wasn’t until we returned and got the light (bulb not LED) going that the heating control problems started.
We have tried swapping the sensors over and have even swapped the whole control box and sensors but it's still not going right. I'd really appreciate any comments that could point us in the right direction. Thanks.