Laars lx 400 manual

File Size 1. Frequently asked questions. Flame lifts and goes out 1. Correct supply pressure to assure 3. Increase draft openings by sliding damper beneath burners see Section Flashback on start up 1. Wrong gas. Make sure gas supply matches gas indicated on rating plate 2.

Burner damage. Replace burner. Heat condensing 1. Low water temperature. Flue product moisture will condense at the start-up until the heater water temperature reaches the normal operating conditions. Heater plumbed backwards. If I keep cycling the heater off and on, it will eventually light. Once lit it, will run until reaching temperature but not relight.

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By Disco42 Started 1 hour ago. By AshleyD17 Started January 6. By infinitenothing Started August 1, By Maryann Started 22 hours ago. By SC Started December 28, Share More sharing options Followers 0. Reply to this topic Start new topic. Recommended Posts. JackMac Posted August 27, We have placed cookies on your device to help make this website better.

You can adjust your cookie settings , otherwise we'll assume you're okay to continue. Appliance Repair Training Webinar Recordings. Laars LX Pool Heater won't stay on. Recommended Posts. Posted November 16, Link to comment Share on other sites More sharing options Replies 7 Created 12 yr Last Reply 12 yr. No Service Required. Page Section Before calling for service, how- ever, the owner should check for obvious problems.

If flame current is less than 0. Air and gas are ignition control shuts down the system. Page Transformer Page 40 and the water pressure switch is good. If there is no If there is voltage at terminal on the secondary side of transformer with a test point 7 then move the lead from test point 7 to the yellow wire attached to it common.

Over-firing might contacts of the manual reset switch are open. If Volts is detected at this point, then move the red WARNING lead of the meter to test point 24 where the black wire The igniter, power supply circuit board and with a yellow trace from the blower pressure switch enters the ten-pin connector.

Disconnect replaced. If the voltage is correct, move the red lead the igniter wires at the quick disconnects. Place one to the connection at the igniter wire quick disconnect lead of the meter on each wire of the igniter. Page 46 Page 44 Figure Test Point Identification Diagram Replacement Parts Check the connections or replace the power distribu- tion board.

All other brand names, products names or trademarks belong to their respective holders. Page General Exploded View Page 48 Page Limited Warranty If the dealer is not available, you can locate a service center in your area by visiting www. All returned parts must have a Returned Material Authorization number to be evaluated under the terms of this warranty. This manual is also suitable for: -low nox Lt-low nox. Print page 1 Print document 52 pages. Rename the bookmark.