12 |
Page SVC 820 Tankless Gas Trouble Shooting Manual
12
24
Malfunction Of
Operational Switch
1.
Turn off water. Disconnect Remote Control and retry
2.
Verify unit is electrically grounded
3.
Press MIN and MAX button on Control Board to reset
29
Condensing Only:
Maintenance:
Neutralizer Is clogged
Condensing Only:
1.
Ensure shipping cap for drain line is removed and drain line is not blocked
2.
Clear all neutralizer drainage ports inside of unit
3.
Clear neutralizer drainage line outside of unit
4.
Clean air inlet screen
5.
Clean heat exchanger fins
If maintenance requirements are met:
1.
Check neutralizer water level electrode
Mid Efficiency &
Condensing:
Maintenance:
Heat Exchanger
Temperature Is Too Low
Mid Efficiency & Condensing:
1.
Clean air inlet screen
2.
Clean heat exchanger fins
31
Inlet Thermistor
1.
Check Thermistor wiring for damage
2.
Check and clean scale from Thermistor
3.
Ohm Thermistor
32
Heat Exchanger
Thermistor
1.
Check Thermistor wiring for damage
2.
Check and clean scale from Thermistor
3.
Ohm Thermistor
33
Outgoing Water
Temperature Sensor
1.
Check Thermistor wiring for damage
2.
Check and clean scale from Thermistor
3.
Ohm Thermistor
Summary of Contents for PH2-20R DVSN
Page 158: ... 158 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS ...
Page 159: ... 159 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS ...
Page 160: ... 160 Schematic Disassembly PH2 20RDVS PH2 25RDVS PH2 28RDVS ...
Page 162: ... 162 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF ...
Page 163: ... 163 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF ...
Page 164: ... 164 Schematic Disassembly PH2 20ROF PH2 25ROF PH2 28ROF ...
Page 166: ...Schematic Disassembly PHH 32RDV PHH 25RDV 166 ...
Page 167: ...Schematic Disassembly PHH 32RDV PHH 25RDV 167 ...
Page 169: ... 169 Schematic Disassembly PHH 32ROF PHH 25ROF ...
