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How do you initially start the heater - Pentair MASTER TEMP HEATER 400 000 BTU NG LOW NOX HD EXCHANGER

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HOW CAN YOU TELL IF THE PILOT LIGHT IT LIT?


The Hayward H Series Pool Heater with standing pilot uses a standing flame to safety initiate combustion, and the standing pilot flame is uses to generate about 0.400 to 0.450 volts DC to operate the gas valve.

CAUTION: Your Hayward H Series Pool Heater is essentially a furnace. Only qualified technicians with proper training and tools should repair your heater.

Once you have completed the pilot start procedure in your heater manual, the pilot flame should be visible but it is difficult to see. The pilot is located at the bottom of the heater, to the left side of the burner chamber, about half way between the front and back of the heater. Before attempting to verify the pilot, it's wise to turn the thermostat to the full counterclockwise OFF position. There are two useful methods to verify the pilot: 1) Before you initiate the pilot procedure, place a small mirror on the floor of the heater on the left side of the burner chamber, just inside the combustion area. CAUTION: DO NOT attempt to place or remove this mirror while the heater is in combustion mode! After placing the mirror, you should be able to see the pilot assembly. Follow your pilot start procedure, then you should be able to see the pilot flame in the mirror before you turn the gas valve knob into the ON mode. Be careful to remove the mirror before initiating combustion. 2) Only when the pilot flame is on will the thermocouple generate the circuit voltage required to operate the gas valve. During the pilot start procedure, while the gas valve knob is still in the "pilot" position and the pilot flame is on, the circuit voltage can be measured at the gas valve without danger of initiating combustion. Using a volt meter, measure the voltage between the RED and WHT wires on the gas valve terminals. This measurement should be between 0.400 and 0.450 volts DC. If below, the gas valve will not operate even if the pilot is ON.

After verifying the pilot, be sure to remove the mirror (if used) and the voltmeter (if used), turn the gas valve to "ON", and return the front heater cover before initiating combustion.

May 24, 2014 | Hayward 250kbtu Ng Pool Heater - Inground

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I have a Pentair Minimax CH 250M pool heater. When I opened my pool, the heater started up fine and heated the pool initially. However, since the initial heater it has not come back on, and the pool is...


Do you have 24V at the brown wire of the gas valve? If you do then it is probably a bad gas valve.
If you don't have 24V on the brown wire it is probably the ignitor.

Jun 04, 2011 | Pentair Minimax Ch 250,000 Btu Natural Gas...

1 Answer

I have a new Jacuzzi tub with a Rapid In-Line Heater. When I fill the tub the water the initial temp is 67 degrees. The heater only increases the temp to 71 degrees. What is wrong with the heater ,if...


The bath heater you have is not designed to HEAT water - they only Maintain what you start with.
You need to start the bathtub with the hot water you want. It will only heat about 1-2 degrees an hour.

Jan 08, 2011 | Jacuzzi RapidHeat In-Line Heater U395000 [...

1 Answer

My rinnai comes up with a code 11 when i try to start it. if i try it about ten times the main valve opens and runs fine. but untill that point it doesnt start. any ideas?


Mysolution relates only if you are on LPG/bottleg gas. I have had many problems with the gas regultor actually on the initial supply line near the bottles sticking. Error code 11 is usually simply a gas supply issue and not a fault with the heater itself. Just rule out that before you start messing with the heater itself. Causes inside the heater would be either gas valve (unlikely) or PCB. Both are not normally intermittent. Try running something else on gas if you have anything and then turn on the heater.

Sep 15, 2010 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

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After initial start up the heater only runs 5 seconds then trips


REPLACE FENWAL IGNITION CONTROL.AND BE DONE WITH IT.

Dec 16, 2008 | Heating & Cooling

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