Lennox GCWB95W-150 Application Guide

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
 ?
1.









 

I





 
77  

77 


2.
















 


FAULT SOLUTION SECTIONS
Is main water filter and
assembly clean and
rotor free to move?
L
PCB connector x22 Hall
effect sensor terminals.
Check the voltage is
approximately 5 VDC
between the Red and
Blue wires. See Wiring
Diagrams.
With water running
through DHW circuit,
measure red and white
wire for 2.8 VDC for
flow triggering.
Check DHW NTC
senor for proper OHM
value
Replace PCB
YES
YES YES YES
Clean or Replace
Replace PCB
Replace Hall Effect Sensor
Replace DHW NTC sensor
NO
NO
NO NO
PRODUCT LITERATURE
Lennox Industries Inc.
Dallas, Texas

Lennox GCWB95W-150 Specifications

General

Brand	Lennox
Model	GCWB95W-150
Category	Boiler
Language	English