Paloma PH2-20R DVSN, Engineering Handbook

Page: 37 / 172

SVC 820-Tankless Gas Trouble Shooting Manual Page | 37
37
FLAME ROD(s) Diagnostic Chart
NO
YES
YES
NO
Cycle unit ON and check AC Volts at
white “M” & blue “T” connectors:
1 – 100 AC VOLTS
Is the AC voltage
OK?
Attempt to operate unit again.
IF unit malfunctions due to Error Code 11:
Replace Control Board
Is Flame Rod(s)
detecting flame?
Cycle unit ON; while in Maintenance Mode check
Flame Rod status under table 0Y. IF detecting flame,
Maintenance Mode will display:
Indoor Models: 05
Outdoor Models: 01
Attempt to operate unit again. If the unit
malfunctions due to an Error Code 11:
Flame Rod(s) are ‘OK’
*CHECK: GAS, VENTING, & GROUND*
Remove and clean Flame Rod(s).
Attempt to operate unit again.
IF Flame Rod(s) still does not detect flame:
Replace Flame Rod(s).