Question about Pool & Spa
My pool heater starts for bout 5 mins then shuts off and displays a (GVO) sign and I dnt even know where the gas valve is. Please help
Believe you governor bad black fitting next to incoming pluming on right side of heater gas valve inside panel below display
Posted on May 29, 2013
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Posted on Jan 02, 2017
The diverter inside your manifold is likely broken. You should stop using the heater immediately as the nocking is from water starting to boil in your heat exchanger. This can lead to a dangerous situation if a limit switch does not act in time.
Pull the inlet hose from the heater and you should see a plate just inside. If you can move it around it is broken and the fix is a new exchanger assembly.
You can fin these online and we sell them at www.arrowmotor.net
Posted on Jun 18, 2009
would not suggest trying to manually light,its an electronic ign model so you may damage some wires with an open flame.try powering off then turning back on and see if display retuns to normal
Posted on Jun 20, 2009
Sounds like it is cycling on high limit; causes are related to water flow through the heat exchanger or a faulty high limit(doubtful given the heater cycles back on). Check the internal bypass for obstructions; has anyone worked on it recently? There are usually two high limit switches with different trip temperatures; installing the wrong one could also be the culprit. Does the heater "bang" before it goes off (a sign that the water is boiling inside the tube bundle)?
Posted on Jun 28, 2009
"IF" - Hayward Pool Heater Fails to Ignite: the most common reason for this problem is insufficient gas supply. The Hayward heater LED display will show a diagnostic fault code of "IF" which stands for Ignition Failure. Undetected gas pressure problems if not investigated properly may result in unnecessary replacement and servicing of your Hayward Pool Heater.
Posted on Apr 23, 2010
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