Is this heater is been install for above the ground pool it will be better either way to use a hard schedulle 40 pvc to prevent any checking in the hoses for future leak ,is the heater connections are correct in and out , mean from the return the filter go to inlet side the heater them the outlet side of the heter (HOT WATER) GO TO RETURNS of the pool ? also check if the pump got full prime not air,is the filter is clean? also check for any brocken parts inside the flowvalve control, after years low PH AND TA will destroy internal parts in heater include leaking heater exchangers.
SOURCE: 1 year old hayward h1001d pool heater clicking
Actually, the clicking is likely causing the shaking. Inside the manifold of a H100 is a stainless steel diverter plate that send some of the passing water into the heat exchanger and lets the rest past and back to the pool. When it breaks, you will hear a 'clicking' noise at it rattles in the water path. When it breaks, the flow to the heat exchanger is intermittent and you will begin to boil the water, causing the shaking. This situation is dangerous, especially without a pressure relief in the heater or pipe. As long as your water chemistry is sound, Hayward will usually cover this under warranty even if the unit is over a year old. Contact them to get a factory authorized repair rep out at: http://www.haywardnet.com/locator/
SOURCE: Hayward H series pool heater diverter plate moves
next to the water inlet oulet is got to be either two bolts or a silngle big plastic nut all depens on the model take off when system is off!!!and replace if needed
SOURCE: I have A hayward heater H100IDEVERYTIME the heater
The Hayward H100ID1 has a problem with the heat exchager header baffle becoming loose and allowing water to flow straight through the header, bypassing the heat exchanger. Low flow in the exchanger tubes boils and causes popping and unit shaking. There is a quick 30 minute fix for $0 here: https://sites.google.com/site/haywardpoolheater/
SOURCE: Loud noises, shaking, visible white powder in chlorinator
See this page:https://sites.google.com/site/haywardpoolheater/
For info about the part that breaks and how to fix it. YMMV.
SOURCE: Good morning, I have a hayward
https://sites.google.com/site/haywardpoolheater/
Three years and counting without any trouble.
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