SVC 810 Tankless Troubleshooting Manual
60
Error Code 66 (RTG66 Only)
Error Code 71
Explanation: Gas Inlet Solenoid Valve (G.I.S.V) fault. Check gas inlet solenoid valve wiring
harnesses for loose or damage terminals; and connection K to the circuit board is tight.
Error Code 72
Explanation: Flame Sensing Device fault. The Flame Probes are sensing the presence of flame
when there is not suppose to be any flame.
See and follow the same procedure as used in Error Code 51.
Measure the voltage at connector B between the White#2 and
Black#8 wires for: 8 to 16 VDC
Yes
When motor
operates, is the
voltage to the
water control
OK?
No
Replace the Printed Circuit Board
Replace the Water Control Assembly
Replace G.I.S.V. Valve
Is there power
to the G.I.S.V.
valve?
Yes
No
Replace the Printed Circuit Board
With the unit attempting to go to main burner, measure the voltage
at connector K between the Yellow and Black wires for:
75 to 100 VDC
Содержание SVC 810
Страница 21: ...SVC 810 Tankless Troubleshooting Manual 20 Fan Speed Chart ...
Страница 22: ...SVC 810 Tankless Troubleshooting Manual 21 RTG2 42 Wiring Diagram ...
Страница 23: ...SVC 810 Tankless Troubleshooting Manual 22 Printed Circuit Board ...
Страница 24: ...SVC 810 Tankless Troubleshooting Manual 23 RTG 53 Wiring Diagram RTG 53 ...
Страница 25: ...SVC 810 Tankless Troubleshooting Manual 24 Printed Circuit Board RTG 53 ...
Страница 26: ...SVC 810 Tankless Troubleshooting Manual 25 RTG 66 Wiring Diagram ...
Страница 36: ...SVC 810 Tankless Troubleshooting Manual 35 Printed Circuit Board RTG 74 ...