It's been raining for days here in California and today while there's break, I turned on my spa and the heater wont work. It has an "IF" error code which I guess means ignition failure. I've turned it on and off again a few times and can smell gas as it trys to light itself without success before showing the IF code again. I've read a few of the posts where someone said
"I have found that after heavy rains the combustion fan switch gets water in it and then the heater will
cycle like you describe. There is a small rubber hose that connects to the sensor, be sure there
is not water in it. This sensor tells the controller that the combustion fan is running and it is OK to
start up. Although the combustion fan maybe running OK if the sensor does not close the controller
thinks the fan is not running and won't let the heater start."
Sounds like this could be my issue. I've taken the two front panels off and am not sure where the small rubber hose is that may have water in it... can someone point me in the right direction?