RBI DOMINATOR Series User Manual

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No Power To Unit Power not connected Wire unit to line voltage
External circuit breaker open Reset breaker
Relay board fuse (24V) blown Replace fuse
Transformer circuit breaker open (4 stage) Reset breaker
No Action On Call For Heat Primary limit or other control/interlock • Check indicator board, reset limit or control or
open resolve problem as applicable
• If not resolved, check wiring and condition of
limit.
Low water cuto open • Check circulating pump
• Check pump contact in J-box
• Check LWCO wiring and condition
Stage control sensor(s) not wired or are • Wire sensor(s) to J-box or replace as necessary
malfunctioning
• Check error message on control, refer to
control documentation
Stage control malfunction Replace stage control
No Power To Pump Pump contact not wired Wire pump contact to J-box
Stage control malfunctioning Replace stage control
Pump malfunctioning Replace pump
No Power to Power Venter Power venter contact not wired Wire power venter contact to J-box
Power venter not wired to external power Wire power venter as shown in connection
diagram
Relay fault Replace relay
Power venter fault Replace power venter
Power Venter On, Power venter interlock open • Check indicator board for power vent indication
No Action From Unit
• If indication exists, check  ue or chimney for
blockage
Power venter interlock not wired Wire power venter interlock as shown in
connection diagram
No Power To Blower(s) Blower(s) not plugged in Plug in blower(s)
Relay fault Replace blower relay
Blower(s) malfunctioning Replace blower(s)
Fault in prepurge circuit Replace timer board
Unit Does Not Spark Incorrect spark gap or shorted ignitor lead Adjust ignitor rod or correct short
Bad ground on  ame sense module Check ground connections, adjust as necessary
Low air (blocked  ue/inlet) condition • Check indicator board for low air indication
• If condition exists, check inlet,  ue, chimney for
blockage
• Check combustion air/ventilation opening in
space
• Check inlet air  lter, clean/replace as necessary
as necessary
Spark generator fault • Check spark generator wiring
PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION
TROUBLESHOOTING

RBI DOMINATOR Series Specifications

General

Category	Boiler
Brand	RBI
Series	DOMINATOR
Fuel Type	Gas
Configuration	Floor-standing
Water Content	Varies by model
Dimensions	Varies by model
Weight	Varies by model