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Code on rude water heater Pvp75pfw reads max amount of ignition attempts system is in lock out

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Ignition lockout

Make sure all gas is turned on to the heater, ignition lockout can be one of several things, the majority of the time its a control board but, it could also be water in the heat exchanger pot, which would keep the ignitor from working, or a bad igniter.

Feb 20, 2014 | Pentair Mastertemp Heater

2 Answers

LO on Display

"LO" means lock out. This means that the heater has failed to fire, and will not attempt to do so again until it is turned off and back on.

Either the heater is getting no gas, the gas valve is not opening for any of several reasons, the signal to spark is not being sent to the ignitor, the ignitor has failed, or the heater is failing to detect that the burner has been lit. Best to get a tech on it.

Jan 26, 2014 | Sta Rite Sr400na Max E Therm Pool & Spa...

2 Answers

Getting ignition lockout code

1-water flow ? gas related , is propane or natural gas ?

Jun 09, 2013 | Legacy Jandy Lrz250en Swimming Pool Spa...

2 Answers

The heater won't fire and water temp reads 114 degrees. I've replaced the thermistor with no luck.

If the temp reads 144, the heater will not fire because it thinks the water is 144 ... entirely too hot and way beyond the safety limit of this heater.

I believe your trouble is in the thermostat sending unit.

Let me know what happens when you check this sensor.

Thanks for using

please vote


Dec 05, 2009 | Sta Rite Sr400na Max E Therm Pool & Spa...

1 Answer

Mini max plus 150 fails to fire

It appears that the boiler is going into hard lock out. This is caused by successive ignition failures for some reason. After 3 attempts to light, a high limit trip, low water flow, etc, the unit will lock out and will require a power reset in order to reset the ignition control. You should have the cause investigated to ensure safe operation.

Aug 10, 2009 | Pool & Spa

1 Answer

Pool heater

If the heater fails to ignite after three attempts, the heater will automatically go into Lock Out. This is a safety feature on the heater.

Things for you to look at to see what is causing the problem are the display panel and diagnostic lights. When you turn on the heater, is it reading the correct water temp? If not, the Thermister has gone bad and will need to be replaced. When you try to start the heater, is there an Error Code displayed? Which of the Service Lights are coming on when the heater will not light? If it is the Serivce System, that is usually low flow of water. You may have a dirty filter, skimmer or pump basket full of debris, or a valve not completely open.

If the Service System light is the one coming on, then you will need to take off the top two halves of the heater and turn over the Display Panel. There are diagnostic lights on the back side of the panel. There may be a red light next to any of the following:


If there is a red light next to one of these, then that is what has malfunctioned. If you need an Owner's Manual for the heater, you can find one online at the following link:


1 Answer

Sta-rite heater error code 126

The 126 is not an error code, but it maybe the temp of the water that the heater is reading. If the heater thinks the water is 126 degrees, it will not start at all.

If the heater is reading the wrong water temp, the problem is the Thermister, which is the sensor that is suppose to read the water temp. You will need to replace this sensor in order to correct the problem with the heater. It is really easy to do!

If you have a manual for the heater, if you go to the Replacement Parts Listing for the Electrical System, page 53 in the online version, the Thermistor is Item #9. It goes into the left side of the manifold in the to place, between the first two manifold bolts.

Jun 22, 2009 | Sta Rite Sr200lp Max E Therm Pool & Spa...

1 Answer

AGS code

AGS switch wiring may be bad. Jumper the switch at the molex connector on the board using a paper clip, with the plug still plugged on. Restore power.

Dec 04, 2008 | Sta Rite Sta-Rite Max-E-Therm High...

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