30
Rinnai Direct Vent Service Manual
(FR) Flame Rod:
Flame rod - yellow wire. Low fire flame circuit should be somewhere around 1.2 to 1.8 micro amps,
depending on gas type being used. High fire flame circuit should be between 4 - 8 micro amps.
*NOTE:
Improperly setup units can cause flame rods to carbon up. This can cause a hard lockout. If
carbon is found on the flame rod, remove the rod and clean it. Then you need to reconfirm
the manifold gas pressure, check air shutter setting, by-pass restrictor screw size and all
orifices for proper sizing. Also, the burner should be removed and cleaned.
Safety Circuit Test: TF
1
, TF
2
, TF
3
, OHS, and M.S.
Unplug the black and red wire connector off of TR1 transformer, Then unplug the nine pin connector next to the
PC board. Now insert (1) lead of your meter into the grey wire connection at the nine pin connector and the other
lead to the black wire at the connection at transformer TR1. Set your meter to read continuity. Turn the control
knob to the on position. You should read continuity through the safety circuit at this time. If not, you need to
confirm which switch is defective and replace that component.
To check voltage through the safety circuit, place your leads in the black wire connection at transformer TR1 and
the grey wire connection at the nine pin connector at the PC board. With all components reconnected, turn the
control knob to the on position. You should read 0 volts AC across these two points. If you read anything above 1
VAC, there is a bad switch somewhere in this part of the circuit.
IMPORTANT INFORMATION CONCERNING HARD LOCKOUTS
Other items that can cause hard lockouts are: improper conversions, spider webs in burner and/or vent assembly,
improperly sized gas lines, low pressure or pressure drops due to other appliances on gas system, improper
ground or no ground at receptacle, supply regulator freezing up or defective, voltage drops or bad receptacles,
winds in excess of 40 MPH setting off pressure switch, etc.
RHFE-551FA
Troubleshooting
Summary of Contents for RHFE-431WTA
Page 14: ...14 Rinnai Direct Vent Service Manual RHFE 431FA Series RHFE 556FA FTRA Wire Diagram ...
Page 15: ...Rinnai Direct Vent Service Manual 15 RHFE 556FAIII Wire Diagram ...
Page 16: ...16 Rinnai Direct Vent Service Manual RHFE 556FTRAIII Wire Diagram ...
Page 24: ...24 Rinnai Direct Vent Service Manual RHFE 431WTA Wire Diagram ...
Page 25: ...Rinnai Direct Vent Service Manual 25 RHFE 556WTA Wire Diagram ...
Page 31: ...Rinnai Direct Vent Service Manual 31 RHFE 551FA Wire Diagram ...
Page 34: ...34 Rinnai Direct Vent Service Manual RHFE 1001FA Wire Diagram ...
Page 37: ...Rinnai Direct Vent Service Manual 37 RHFE 1001FA VA Wire Diagram Wire Diagram Block Diagram ...
Page 42: ...42 Rinnai Direct Vent Service Manual RHFE 201FA Wire Diagram ...
Page 43: ...Rinnai Direct Vent Service Manual 43 RHFE 201FA Block Diagram ...
Page 46: ...46 Rinnai Direct Vent Service Manual RHFE 263FA RHFE 263FAII Wire Diagram ...
Page 47: ...Rinnai Direct Vent Service Manual 47 RHFE 263FA RHFE 263FAII Block Diagram ...
Page 50: ...50 Rinnai Direct Vent Service Manual RHFE 1004FA Wire Diagram ...