72
Rinnai Direct Vent Service Manual
RHFE-1004FA
RHFE-1004RFA
RHFE-1004FTA
Troubleshooting
(FM)
Read voltage across:
Voltage Potential
Read resistance
Pin Numbers
Black-Red 40-105
VAC
25-50
Ω
1-2
Note: Ensure clear and black hose from pressure switch to blower air chamber is not blocked or
crimped with any obstructions including spider webs.
(TH) Room Thermistor:
Check thermistor by inserting meter leads into each end of thermistor plug. Set your meter to the
200 K
Ω
scale. Apply heat to the thermistor bulb and the resistance should decrease. Apply cold
and the resistance should increase. Examples of readings:
41ºF=91K
Ω
50ºF=65K
Ω
68ºF=39K
Ω
86ºF=23K
Ω
(FR1, FR2, FR3) Flame Rod
FR1 and FR2 are high fire flame rods. The left hand rod (FR1) is a blue wire and the right hand
rod (FR2) is a red wire. Flame current through these rods should range from 4 to 8 micro amps (µ
amps) depending on gas type being used. FR3 fire flame rod is the yellow wire located on the
front center of the unit next to the electrode. Low fire flame current should be 1.2 to 2.0 micro
amps (µ amps).
Improperly setup and /or converted units can soot and cause hard lockouts. If carbon is found on the
flame rod, clean the carbon from it. Confirm that your manifold differential gas pressure on Hi fire and Lo
fire is correct. Insure primary and secondary air dampers are correct. Check to ensure proper orifices
were placed in the unit..
IMPORTANT INFORMATION CONCERNING HARD LOCKOUTS:
Other items that can cause hard lockouts are: improper sized gas lines, low gas pressures or pressure drops due
to other appliances on the gas system, spider webs in the burner and air intake of vent system, improper ground
or no ground at receptacle, supply regulators freezing up or defective, voltage drops or bad receptacles, winds in
excess of 40 mph causing turbulence inside the vent terminal, etc.
(OHS1, OHS2, TF1, TF2) Safety Circuit Check: CN8
Check for continuity reading from pin #1 white wire to pin #5 blue wire. If you do not read continuity through this
circuit, locate defective switch and replace that component. Determine what caused overheat condition.
(MS) Main Switch: CN11
Disconnect CN11 from PCB, being careful not to break wires. Read Blue to Blue, pin #9 and 10 on 40K
Ω
. When
ON/OFF is in the ON position, you should read 10--18K
Ω
. When released, you should read open or 0
Ω
Wiring harness, connectors, and fuses should be checked if all above readings are normal.
* Be sure to check for obstructions to blades. Check the capacitor before replacing motor.
(PS) Pressure Sensor:
Electronic
0.31 in (8.0 mm) WC
ON
0.11 in (2.8 mm) WC
OFF
Summary of Contents for Energysaver RHFE-1004FTA
Page 14: ...14 Rinnai Direct Vent Service Manual RHFE 201FA RHFE 201RFA Wire Diagram ...
Page 15: ...Rinnai Direct Vent Service Manual 15 RHFE 201FA RHFE 201RFA Ladder Diagram ...
Page 18: ...18 Rinnai Direct Vent Service Manual RHFE 263FA RHFE 263FAII RHFE 263RFA Wire Diagram ...
Page 19: ...Rinnai Direct Vent Service Manual 19 Ladder Diagram RHFE 263FA RHFE 263FAII RHFE 263RFA ...
Page 26: ...26 Rinnai Direct Vent Service Manual RHFE 431FA Series RHFE 556FA FTRA Wire Diagram ...
Page 27: ...Rinnai Direct Vent Service Manual 27 RHFE 556FAIII Wire Diagram ...
Page 28: ...28 Rinnai Direct Vent Service Manual RHFE 556FTRAIII Wire Diagram ...
Page 32: ...32 Rinnai Direct Vent Service Manual RHFE 431WTA Wire Diagram ...
Page 33: ...Rinnai Direct Vent Service Manual 33 RHFE 556WTA Wire Diagram ...
Page 45: ...Rinnai Direct Vent Service Manual 45 RHFE 551FA Fault Finding Summary ...
Page 46: ...46 Rinnai Direct Vent Service Manual RHFE 551FA Fault Finding Chart 1 ...
Page 47: ...Rinnai Direct Vent Service Manual 47 RHFE 551FA Fault Finding Chart 2 ...
Page 48: ...48 Rinnai Direct Vent Service Manual RHFE 551FA Fault Finding Chart 3 ...
Page 49: ...Rinnai Direct Vent Service Manual 49 RHFE 551FA Fault Finding Chart 4 ...
Page 50: ...50 Rinnai Direct Vent Service Manual RHFE 551FA Fault Finding Chart 5 ...
Page 51: ...Rinnai Direct Vent Service Manual 51 RHFE 551FA Fault Finding Chart 6 ...
Page 52: ...52 Rinnai Direct Vent Service Manual RHFE 551FA Fault Finding Chart 7 ...
Page 53: ...Rinnai Direct Vent Service Manual 53 RHFE 551FA Fault Finding Chart 8 ...
Page 54: ...54 Rinnai Direct Vent Service Manual RHFE 551FA Fault Finding Chart 9 and 10 ...
Page 55: ...Rinnai Direct Vent Service Manual 55 RHFE 551FA Wire Diagram ...
Page 58: ...58 Rinnai Direct Vent Service Manual RHFE 1001FA Fault Finding Chart ...
Page 59: ...Rinnai Direct Vent Service Manual 59 RHFE 1001FA Fault Finding Chart ...
Page 60: ...60 Rinnai Direct Vent Service Manual RHFE 1001FA Fault Finding Chart ...
Page 61: ...Rinnai Direct Vent Service Manual 61 RHFE 1001FA Wire Diagram ...
Page 64: ...64 Rinnai Direct Vent Service Manual RHFE1001FA VA Fault Finding Chart ...
Page 65: ...Rinnai Direct Vent Service Manual 65 RHFE1001FA VA Fault Finding Chart ...
Page 66: ...66 Rinnai Direct Vent Service Manual RHFE1001FA VA Fault Finding Chart ...
Page 67: ...Rinnai Direct Vent Service Manual 67 RHFE1001FA VA Fault Finding Chart ...
Page 68: ...68 Rinnai Direct Vent Service Manual RHFE 1001FA VA Wire Diagram Wire Diagram Ladder Diagram ...
Page 73: ...Rinnai Direct Vent Service Manual 73 RHFE 1004FA RHFE 1004RFA RHFE 1004FTA Wire Diagram ...