Rinnai RHFE-551FA Service Manual page 8

Accessing Operation History
RHFE-431WTA,
RHFE-556WTA,
RHFE-433RWTA,
RHFE-558RWTA
SET ROOM
50 82
18 42
1 25
RHFE-431FA, RHFE-556FA
After the fault codes, the heater will display the combustion hours and combustion cycles (number of times the
unit is turned on and off). The combustion time will display first in two parts followed by the combustion cycles
displayed in two parts.
Combustion Time
1. The temperature display will indicate a 16 digit binary number. A light indicates a "1". A position not lighted,
indicates a "0". Read this number using the example below.
LO 60 64 68 72 76 80
LO 60 64 68 72 76 80
2. Use a calculator with binary and decimal functions. Set the calculator to binary, "BIN", and enter the 16 digits.
(0 1 0 0 0 0 0 1 1 1 0 1 0 0 0 0 in the example above.)
3. Press the decimal function, "DEC", and the combustion time in hours will display. The combustion hours in
this example is 16848.
Combustion Cycles
1. The temperature display will indicate a 16 digit binary number. A light indicates a "1". A position not lighted,
indicates a "0". Read this number using the example below.
LO 60 64 68 72 76 80
LO 60 64 68 72 76 80
2. Use a calculator with binary and decimal functions. Set the calculator to binary, "BIN", and enter the 16 digits.
(1 1 0 0 1 0 0 0 0 0 1 1 0 0 0 1 in the example above.)
3. Press the decimal function, "DEC", and multiply the displayed number by 10 to obtain the combustion cycles.
The combustion cycles in this example is 512,490.
8
RHFE-201FA, RHFE-201RFA,
RHFE-263FA, RHFE-263RFA,
RHFE-263FAII, RHFE-433RFA,
RHFE-1004FA, RHFE-558RFA,
RHFE-556FTRA, RHFE-202FTA,
RHFE-1004RFA, RHFE-265FTA
RHFE-1004FTA
50 82
18 42
1 25
HI
HI
HI
HI
Rinnai Direct Vent Service Manual
After the fault codes, the heater will display the
combustion hours, combustion cycles (number of
times the unit is turned on and off), and power
failure frequency.
5082 combustion hours
18420 combustion cycles (multiply displayed number by 10)
125 power failures
This indicates the first 8 digits as follows: 0 1 0 0 0 0 0 1
This indicates the next 8 digits as follows: 1 1 0 1 0 0 0 0
This indicates the first 8 digits as follows: 1 1 0 0 1 0 0 0
This indicates the next 8 digits as follows: 0 0 1 1 0 0 0 1