Question about Washing Machines
Tips for a great answer:
Nov 15, 2015 | Pool & Spa
Nov 09, 2013 | Great Lakes Spas Pool & Spa
May 06, 2013 | Arctic Cat 2005 400 4x4 Automatic
Dec 01, 2012 | Intex Automatic Salt Water System for ...
Aug 16, 2012 | 2006 Chrysler PT Cruiser
Thank you for posting your question here on Fixya.com.
A 'LO' error code for a Hayward heater is a limit string open error. If the limit string opens the heater shuts down and goes into lockout. Automatic restart is 2 minutes after the error condition is corrected and the limit string closes.
The limit string is a series of switches designed to turn off the heater if air or water temperatures exceed a safe operating limit.
The problem may be faulty a switch(es) but is far more likely to be a system condition the switches are reacting too that needs to be corrected. Low flow of combustion air due to obstructions around the heater or the vent; low flow of water through the heater allowing too high a water temp; Poor venting or sooted-over heat exchanger causing flame rollout. These are all conditions that should be eliminated if they exist.
If you are not familiar with these switches or the conditions described you may want to consider calling in a professional. Hayward can refer you to someone in your area who is. Call Hayward at 908-351-5400 or try the website locator found here.
If this answer does not fix your problem, please comment with additional details prior to rating the answer. You may also contact me thru our website at www.arrowpools.net. Positive feedback is appreciated once your problem is solved!
Mar 23, 2011 | Hayward H Series Pool & Spa Heater 400k...
Nov 10, 2009 | Noritz Tankless Water Heaters N-0931M
Oct 09, 2008 | Whirlpool Duet GHW9150P Front Load Washer
Dec 22, 2007 | GE JTP27 Electric Double Oven
120 people viewed this question
Usually answered in minutes!