Rheem 834 Series Service Instructions Manual page 32

Fault Finding Chart 1.3 & 1.4
False flame, ignition failure or
1.3
loss of flame (continued)
Are burner min and
max gas pressure
settings correctly
adjusted?
Refer to 'Checking & Adjusting Burner Gas
Pressure' in the 'Component Adjustment
Procedures & Checks' section.
YES
Main burner flame should be blue with little
or no yellowing of the tips. Burner flame
should not be a harsh noisy blue flame.
Is main burner flame
stable & satisfactory?
YES
Is flame sensor lead
firmly connected to
flame sensor?
YES
Is flame sensor clean
and free from cracks?
Refer to 'Checking & Adjusting the Flame
YES
Sensor' in the 'Component Adjustment
Is flame sensor
correctly adjusted?
YES
Is heater wind
affected?
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.
NO
Refer to 'Adjusting the Gas Valve Gas
Regulator' in the 'Component Adjustment
Procedures & Checks' section.
NO
Procedures & Checks' section.
NO
1.4
Can burner gas
pressure settings be
correctly adjusted?
NO
Can gas valve
internal gas regulator
be adjusted?
NO
Replace temperature
controller and attempt to
adjust burner gas
pressure / gas valve
internal gas regulator.
Can burner gas
pressure settings be
correctly adjusted?
YES
Are main burner
injectors correct size
for gas type?
YES
Are burner injectors
dirty or partially
blocked?
NO
NO
NO
NO
YES
Fault rectified. Check heater
YES
operation.
Fault rectified. Check heater
YES
operation.
Replace gas valve assembly
NO and reinstall original
temperature controller.
Fault rectified. Check heater
operation.
Replace main burner injectors
NO with injectors of the correct
size.
Clean or replace burner
YES
injectors.
Clean or replace burner.
Firmly connect flame sensor
lead to flame sensor.
Clean flame sensor or replace
pilot assembly (flame sensor is
not available as a spare part).
Correctly adjust flame sensor.
Create wind break or reposition
heater.
Heater working ok. Possible
previous loss of gas supply or
bad gas supply.
32