Friday 18 June 2021

High Limit 2 error on Raypak 406a

Interesting situation. I two Raypak 406a heaters (one for pool and one for spa) connected to a Jandy AquaLink RS dual 2/6 system. Problem started with the spa heater reading a clock/fireman switch error. Seemed like a wire was loose on the Jandy 6586 mini-board that attaches the Jandy AquaLink RS and controls the spa heater. But then heater was failing to light still and giving a no pilot sensed / ignition lockout message. I called gas company and they ended up replacing the main board, the...

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