20 Most Recent Hayward 100,000 BTU Pool Heater H100ID1 - Above Ground Questions & Answers

VERY low water flow! Or... No water flow. This heater as all heaters do, need to have sufficient water flow thru them, or else they Bang like this. This then creates a problem, for future banging - due to lime up! The minimal water flow gets so Overheated, that it turns to steam! The steam knocks and pushes the heater around, then the Minerals will precipitate out of the water and forcefully attach to the inside walls of the heat exchanger! Which will then drastically reduce the inner diameter of the exchanger making a much smaller passageway for water to travel thru! This is a major problem to remain this way. It will then need to be dismantled and de-limed to increase the holes once more, and allow a proper water flow.

Could anyone tell me where on the control panel I would find the Diode D1 on the board? "agreed; it's usually the diode D1 on the board...a 75 cent part"

if you got zapped ignitor is working try to clean up make sure gas valve has 24 volts to the brown and yellow wires

all the warranties are based on the PROPER MAINTENANCE OF WATER CHEMISTRY. if you cannot prove that the water was balanced properly, you will not have a good time passing this through warranty. a severely unbalanced pool can experience this type of failure very quickly.

there are a variety of causes for this. any one of the safety systems may have detected a fault and thus wont let the heater run. if there is no electricity, the heater wont run. if there is insufficient water flow, the heater wont run.

replace the thermocouple

Need to be more specific...! what is it doing? Is there a pilot? is it burning? do you hear any clicking or buzzing? is it plugged in? is gas valve on? is main fuel supply valve open? is the door on & in place? It needs tone in place!

if new heater and wired 120 volt check wiring try to reverse sounds like not showing rectification if old unit bad flame sensor