Question about Hayward Pool & Spa
hello, It sounds like you may not be getting circulation thru the heater. Make sure the valves are open to allow water to pass thru the heating system. Some systems use a bypass on the heater so there is not a lot of wear on the coil system in the heater. If it is not circulating it will get too hot and the safety shut down will occure. If you are getting water circulating thru the heater, then the thermocouple or auto start igniter system is not working correctly. It is trying to start and can't then recycles. If the burners are igniting on the startup and then shutting back down you may have a bad control unit or thermal sensor unit. Since the unit is gas have a professional service it for you. Good Luck, RAC
Posted on Apr 20, 2009
Does the thermostat have a mercury bulb in it, if it does you need to level the thermostat.
When you take the cover off, on the sub base there should be a couple of marks or grooves
One on each side of thermostat, you need to take a level and loosen the screws on the sub base
And with the level completely level align those two marks with the level.
If you don’t have a mercury bulb, then your thermostat may need the heat anticipator adjusted, some you can adjust the bi-metal coil, but I haven’t done that, so I couldn‘t tell you how to do it, or you just have a bad thermostat.
Posted on Apr 26, 2009
This could be the flow rate / value...maybe the unit is under rated in its BTU value. But if it did work fine and heat the water ok then its not this...next thing would be the system control switches...each of these needs to be tested one by one to see if it cutting out the system too early...failing that it is the flame being produced and the heat value is cold see if the flames are blue or yellow...blue is fine nice and hot yellow is too cold to heat the water passing through
Posted on Jun 05, 2010
there is a installer setup in this thermostat. do you still have the book?
you will need to gain access to the installer setup/programming and in it you will find a setting called auto recovery turn it off. what this does is after a few days of initally running the system figured out it needed to come on earlier and is starting before the set time to come on... you can turn it off and then will have to adjust depending on insulation value/construction type of home how soon you want it to come on so that it reaches desired temperature when you want...
hope this helps you out,,,
Posted on Dec 03, 2011
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