50
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
PN 240011430 REV. P [09/15/2021]
Summary of Contents for 100
Page 34: ...34 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 35: ...35 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 36: ...36 115 COMBI WIRING DIAGRAM MODEL 115 Combi PN 240011430 REV P 09 15 2021 ...
Page 37: ...37 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 38: ...38 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 43: ...43 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV P 09 15 2021 ...
Page 48: ...48 3 FAULT SOLUTION SECTIONS PN 240011430 REV P 09 15 2021 ...