Hayward 250kbtu Ng Pool Heater - Inground "spa wont stay" Questions

in spa mode, the suction valve wont turn to spa suction, it stays on pool suction, whats wrong? i have an electronic system check to see if jandy actuator switch is on also see if wire isnt cut

...wont stay on and ive replaced the My heaters pilot wont stay on and ive replaced the thermocoupler and pilot assembly and replaced the gas valve and it still wont stay lit what could cause that? and ...

wont stay lit i have an h200 NG heater the heater lites then shuts off in about 30 sec flame sensor is probably dirty.remove and clean with fine steel wool.it is located near bottom of burner near ...

...spa heater i have replace the pilot assembly and the theremal couple and the ignitor i have a great flame on the pilot but when i turn the valve to on the burners wont lite the thermastats are turned ...

...time but burners wont stay lit. water flow is good Problem with the thermocoupler its not producing a minivolt of 250 plus that is needed to open the main gas valve http://www.laarsman.co.uk ...

...wont stay lit wont stay lit after 1 minute pressing button and switching to on position wait 5 - 10 minutes, turn off gas and on to off still nothing dirty pilot tubing or need new pilot ...