SVC 820-Tankless Gas Trouble Shooting Manual Page |
51
51
14 – Error Code Diagnostic Chart
NO
High Efficiency ONLY:
Check for continuity across the
Over Temp Switch
Turn power OFF and remove Molex
connector “U”. Measure resistance
between both white wires:
50K – 500K Ohms
The OHL has activated due to excessive
temperatures. This is normally caused by
inadequate/wrong GAS SUPPLY or
inadequate VENTING.
Check GAS SUPPLY & VENTING
Unit had a loose connection, operation
appears to be normal.
NO
YES
YES
NO
Is the resistance
to the OHL ‘OK’?
Did the unit shut
down due to
Error Code 14?
Reconnect the Molex; attempt to operate unit again.
Replace Control Board
Is this a High
Efficiency Unit?
Mid Efficiency Unit ONLY:
Replace Unit
NO
YES
Is the continuity
‘OK’?
YES
High Efficiency ONLY:
Replace Over Temp Switch
High Efficiency ONLY:
Replace Unit
Содержание PH2-20R OFN
Страница 158: ...158 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS...
Страница 159: ...159 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS...
Страница 160: ...160 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS...
Страница 162: ...162 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF...
Страница 163: ...163 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF...
Страница 164: ...164 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF...
Страница 166: ...Schematic Disassembly PHH 32RDV PHH 25RDV 166...
Страница 167: ...Schematic Disassembly PHH 32RDV PHH 25RDV 167...
Страница 169: ...169 Schematic Disassembly PHH 32ROF PHH 25ROF...
Страница 170: ...170 matic Disassembly PHH 32ROF PHH 25ROF...