Hayward 150000 BTU Millivolt Natural Gas Heater "pool heater wont" Questions

...pool ,the heater wont turn on. When I turn on my pool the heater wont turn on, it flashes SF and HS and the service light is on. Prior to this happening I was unable to switch from standby mode or ...

laars pool heater wont shut off Heater wont shut down by itself. Thermostat has no effect. How can I check the thermostat? pull off the 2 leads and check continuity

Heater wont start;don't hear blower motor When i turn knob on heater, nothing happens. I don't hear any clickng or blower motor going. What could be the problem? there are a variety of causes for this

...pool heater pilot says lit but wont fire any more replaced pilot generator pilot that whole unit nice pilot but wont fire problem isnt with the pilot generator. you have either an open safety withing ...

pool heater wont fire up hello; pool heater was working fine this season then wont fire. gas is on,backwashed filter.red service light comes on soon as you turn thermostat up.would this be a igniter ...

Jandy, Lite 2 Pool heater wont kick in is there a specific size pile line needed to go to Jandy, Lite 2 pool heater? Thank you 3/4 pipe line will work and will keep heater from sooting up.

...pool or spa just fine but when you choose one... the heater wont start and no error messages appear.... you can hear the water running through the heater.... the blower wont start as well...... so we ...