Hayward H Series Propane Electronic Ignition Heater 150,000 Btu "spa sounds boiling" Questions

...sounds like it is pop-ing and boiling This can be a bad internal by-pass.(Inside the plumbing header) So all the water is going past the heater but it still has water pressure to start and will boil ...

...sounds like not enough water in the unit and it boils off WAY TOO LOW WATER FLOW!!! Check if your filter is clean, clean it any way. Do you have a bypass valve installed and opened it too much ...

...Sounds like you have a 2 speed pump. The heater needs high speed to operate. The noise is due to the low water flow. The water is actually boiling in the heater. Crank up the flow and that should ...

...spa makes a banging sound after the burners have been on for a few minutes. The banging continues until I turn off the burners... What you have is a water flow problem. The water should be going ...

raypack 2100 pool heater runs for a couple of minutes then loud banging noise. heater shuts off and error code HL appears That HL is your high limit shutting the heater down. The banging is the sound ...

hayward spa heater about 5 years old, when we turned it on for the first time in probably a year as soon as the water heater came on it started making a loud clanging sound Thank you for posting your ...

Heater has a clonking sound when running ans the Heater has a clonking sound when running and the error message is SF SF is a code for excessive temp difference of water coming in and going out. The ...

Why does my Hayward heater since installation make a whistling sound like a tea kettle boiling as soon as the burners light? I tried installing another identical heater thinking the first one was ...

i have ahayward H1001D1 above ground pool heater running on nat gas has worked for 3 seasons with no problems last week heater started to make banging sound as if it was rapid cycling ichanged filter ...