How to bypass pressure switch on Lars Lite 2 pool heater?

Question 1

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The pilot light is on but it will not start the burners how to test or bypass

this can be caused by a few different items. it can be a faulty/broken flow sensor, broken pressure switch, bad fireman switch. the best bet is to get a qualified pool heater technician to fix it properly. bypassing any of these safety devices is a bad idea

Jul 07, 2014 • Jandy Laars Lite 2 Pool Heater 250,000 BTU...

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Teledyne lars heater, pilot is on but wont fire up, whats wrong?

Somewhere in your "safety loop" something is open. Like old fashioned Christmas lights if one light goes out the whole circuit dies. Instead of bulbs you have a fusable link (rollout sensor), a pressure sensor, the on/off switch , the thermostat(s), and two high limit switches.
The fist thing is to clean/backwash the filter to make sure it's not simply low pressure causing the heater not to fire. If that is okay the problem may lie in any one ore more of the switches and sensors mentioned. The gas valve itself may also be the cause.

Sep 05, 2013 • Jandy Lite 2 Natural Gas Pilot Light...

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I have a Laars Lite 2. Pool an spa heater Model LD25ON. Nat. Gas It was working and then shut off. The pilot generator glows, but it never fires up. I have bypassed the pressure switch and still nothing. I...

see if 24 volts ac to the brown and yellow of the gas valve if voltage need new gas valve if no voltage need new fenwal

Jun 06, 2011 • Teledyne Laars Laars Lite 2 Pool Heater...

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I have a Teledyne lars lite 250000 BTU pool heater Model number LLG25ON-C. IThe pilot lite is fine but the burner will not turn on. I noticed tjough that the Pressure switch is leaking....Is thi sthe...

You will probally just need to replace the pre. sw. If it has gotten bad enough to leak it probally has gone bad.

Jun 25, 2010 • Teledyne Laars Laars Lite 2 Pool Heater...

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1answer

My pilot light is lit but the heater won't turn on.

GET A NEW PRESSURE SWITCH.. CALL AND ASK FOR A PRESSURE SWITCH FOR SAY A HAYWARD POOL HEATER .. LOOKS LIKE THIS ..EBAY Pressure Switch Hayward generic pool heaters also H100

May 20, 2010 • Teledyne Laars Laars Lite 2 Pool Heater...

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1answer

Though the pilot lite is on the heater burners won't come on. We had very bad storms the past few days and I wonder if that affected the heater in any way. Is it the pressure switchor there's a little...

try bypassing pressure switch, if htr fires,it is either faulty or out of adjustment.storm should have no effect on a millivolt heater unless it took a direct lightening hit. let me know how if it works out

Aug 10, 2009 • Teledyne Laars Laars Lite 2 Pool Heater...

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LARS LITE #LLG175N BURNER WON'T STAY LIT.

Make sure your pool filter is clean. Low water flow through the heater will be detected by water pressure switch

Jun 19, 2009 • Teledyne Laars Teledyne_ Laars Lite2...

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Pilot lights, but heater does not ignite.

yes it could. what kind of heater is it?

May 10, 2009 • Lite On Laars Lite 2 Heaters: 250,000BTU...

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Lars Lite 2 pool heater will not ignite

The easiest way to troubleshoot any heater, is to call the manufacturer. Their techs will walk you through each possible problem and solution until you find the answer.

Sep 11, 2008 • Lite On Laars Lite 2 Heaters: 250,000BTU...

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Laars Lite 2 - Turns off after 5mins of being on!

This happened to me and the tech came out and change the pressure switch and it worked fine afterwards

Jun 15, 2008 • Lite On Laars Lite 2 Heaters: 250,000BTU...

Question 2

Craig Butler

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Posted on Jul 02, 2009

Craig Butler

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Jump across the two leads on the switch with a jumper lead (alligator clip leads)

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

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Anonymous Nov 02, 2012

Thanks, saved my pool heater heat pump -going crazy- delima! I replaced a solarium pc board but it still would not work now I know for sure it was the water sensor switch, the replacement water sensor switch was bad too.1
Anonymous Nov 02, 2012

Great worked for a Solarium pool heat pump that was driving me crazy! Replaced a pc board and pressure sensor switch with a bad one. Thanks for a simple test that worked.

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How to bypass pressure switch on Lars Lite 2 pool heater?

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Craig Butler

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Related Questions:

The pilot light is on but it will not start the burners how to test or bypass

Teledyne lars heater, pilot is on but wont fire up, whats wrong?

I have a Laars Lite 2. Pool an spa heater Model LD25ON. Nat. Gas It was working and then shut off. The pilot generator glows, but it never fires up. I have bypassed the pressure switch and still nothing. I...

I have a Teledyne lars lite 250000 BTU pool heater Model number LLG25ON-C. IThe pilot lite is fine but the burner will not turn on. I noticed tjough that the Pressure switch is leaking....Is thi sthe...

My pilot light is lit but the heater won't turn on.

Though the pilot lite is on the heater burners won't come on. We had very bad storms the past few days and I wonder if that affected the heater in any way. Is it the pressure switchor there's a little...

LARS LITE #LLG175N BURNER WON'T STAY LIT.

Pilot lights, but heater does not ignite.

Lars Lite 2 pool heater will not ignite

Laars Lite 2 - Turns off after 5mins of being on!

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How to bypass pressure switch on Lars Lite 2 pool heater?

1 Answer

Craig Butler

Add Your Answer

Attachments: Added items

Related Questions:

The pilot light is on but it will not start the burners how to test or bypass

Teledyne lars heater, pilot is on but wont fire up, whats wrong?

I have a Laars Lite 2. Pool an spa heater Model LD25ON. Nat. Gas It was working and then shut off. The pilot generator glows, but it never fires up. I have bypassed the pressure switch and still nothing. I...

I have a Teledyne lars lite 250000 BTU pool heater Model number LLG25ON-C. IThe pilot lite is fine but the burner will not turn on. I noticed tjough that the Pressure switch is leaking....Is thi sthe...

My pilot light is lit but the heater won't turn on.

Though the pilot lite is on the heater burners won't come on. We had very bad storms the past few days and I wonder if that affected the heater in any way. Is it the pressure switchor there's a little...

LARS LITE #LLG175N BURNER WON'T STAY LIT.

Pilot lights, but heater does not ignite.

Lars Lite 2 pool heater will not ignite

Laars Lite 2 - Turns off after 5mins of being on!

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The pilot light is on but it will not start the burners how to test or bypass

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Top Heating & Cooling Experts

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Brad Brown

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Manuals & User Guides

L0702035 (1).pdf. user-manual-KY-20U...

Rads51j.pdf. user-manual-RADS-51 Air...

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