TM081 Rheem 834 Series Hydroelectric CFGWH Service Instructions
REV: AA Issued: 22/02/17
This document is stored and maintained electronically by Rheem Technical Support. All printed copies are deemed uncontrolled.
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Fault Finding Chart 3
YES
Refer to fault finding chart for
the fault indication displayed.
3
NO
Do temp controller
LED’s indicate a fault
condition?
Water too hot
NO
Firmly connect wiring
connector(s) and/or plug(s).
NO
Refer to ‘DIP Switch Adjustments’
in the ‘Component Adjustment
Procedures &
Checks’ section.
Is heater the correct
gas type for the
premises gas supply?
Are temp controller
DIP switches 1 ~ 6 in
the correct position?
Refer to ‘Checking Inlet Gas Pressure’
in the ‘Component Adjustment
Procedures &
Checks’ section.
YES
NO
Are burner min and
max gas pressure
settings correctly
adjusted?
YES
Refer to ‘Checking & Adjusting Burner Gas
Pressure’ in the ‘Component Adjustment
Procedures &
Checks’ section.
NO
Is gas inlet pressure
correct?
Advise customer that gas supply
pressure is not within
specifications.
NO
YES
NG: 1.13 ~ 3.5 kPa
LPG: 2.75 ~ 3.5 kPa
Replace heater with a heater of
the correct gas type.
Is hot water outlet
temp sensor properly
installed?
Ensure hot water outlet
temperature sensor is properly
installed in sensor well.
NO
Is hot water outlet
temp sensor ok?
(TEST 1)
YES
Replace hot water outlet
temperature sensor.
NO
YES
Are all wiring plugs
and wiring connectors
firmly connected?
YES
1.4
Are main burner
injectors correct size
for heater gas type?
Replace main burner injectors
with injectors of the correct size.
NO
Does temp
at heater
hot water outlet
=
setpoint temp ± 2°C?
NO
Replace temperature controller.
YES
YES
YES
Heater tests ok.
E
nsure DIP switches 1, 2 and
3 are in the OFF position
and
ensure DIP switches 4, 5 and 6
are in the correct position
according to heater model and
gas type
.
YES
Can setpoint
temperature be
decreased?
decrease setpoint temperature
by adjusting DIP switches 7 & 8.
YES
Refer to ‘Adjusting the Setpoint
Temperature’ in the ‘Component
Adjustment Procedures &
Checks’ section.
