background image

Troubleshooting Guide

Series 757, 757DCDA & LF757DCDA

Problem

Cause

Solution

1.  Check valve fails to hold  

1.0 PSID minimum

a. Debris on check disc sealing surface

Disassemble and clean

b. Leaking gate valve

Disassemble and clean or repair

c. Damaged seat disc or seat o-ring

Disassemble and replace

d. Damaged guide holding check open

Disassemble and clean or replace

e. Weak or broken spring

Disassemble and replace spring

2. Chatter during flow conditions

a. Worn, damaged or defective guide

Disassemble and repair or replace guide

3.  Low flows passing through  

mainline valve

a. Mainline check fouled

Disassemble and clean

b. Meter strainer plugged

Disassemble and clean

c. Damaged mainline seat disc or seat

Disassemble and replace

d. Broken mainline spring

Disassemble and replace

Limited Warranty:

 Watts (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment.  

In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.  

THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT.  THE COMPANY MAKES NO OTHER 

WARRANTIES, EXPRESS OR IMPLIED.  THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED 

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special 

or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting 

from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no 

control.  This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.  

Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages.  Therefore the above 

limitations may not apply to you.  This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State.  You should consult applicable state laws to 

determine your rights.  

SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF 

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.

RP/IS-757/757DCDA   2051 

EDP# 1915343 

© 2020 Watts

USA:

  T: (978) 689-6066 • F: (978) 975-8350 • Watts.com

Canada:  

T: (888) 208-8927 • F: (905) 332-7068 • Watts.ca

Latin America:  

T: (52) 55-4122-0138 • Watts.com

Отзывы: