Rinnai WF-100W_EU User Manual page 49

Matters to be confirmed before reporting of failure
When the boiler is not operated and numbers flicker on the liquid crystal display of temperature controller,
check the following matters. (Check the left two digits among four digits displayed on the liquid crystal display.)
Self-diagnostic
Status of
indication
use
Hot water
34
35 Heating
Heating
36
Heating
37
Heating,
43
hot water
Heating,
45
hot water
Heating,
47
hot water
Heating,
52
hot water
Heating,
61
hot water
Heating,
64
hot water
70
Heating,
71
hot water
Heating,
72
hot water
Power
89
connection
Heating,
90
hot water
96
Trial run
Heating,
99
hot water
Details
• Turn off with heating or hot water power button and restart.
Abnormal hot
• If the same symptom recurs, contact our service center
water thermistor
for service.
Abnormal indoor
• First apply for service by contacting our service center and
temperature
switch heating method to floor heating.
thermistor
• Turn off with heating or hot water power button and restart.
Abnormal frost
prevention
• If the same symptom recurs, contact our service center
thermistor
for service.
Malfunction of
• Immediately call the technical support service of Rinnai.
thermistor return CH
Insufficient hydraulic • Check the pressure gauge on the front panel and follow the
circuit pressure CH instructions at the start of the filling operation chapter.
Condensate drain
• Check that the condensate drainage system is not blocked.
blocked
(filled siphon)
• Check whether gas valve is completely open.
Abnormal gas
• Turn off heating and hot water and then turn on again.
pressure
• If the same symptom is repeated, contact the gas supplier.
Abnormal ratio arm
• Turn off with heating or hot water power button and restart.
(gas governor)
• If the same symptom recurs, contact our service center for service.
control
Abnormal fan
• Turn the boiler off and turn it on again.
control Blocked
• If the same symptom recurs, contact our service center for service.
exhaust hole
Abnormal
• Immediately call the technical support service of Rinnai.
magnet valve
Internal fault of the
• Immediately call the technical support service of Rinnai.
PCB
Abnormal • Turn off with heating or hot water power button and restart.
magnet valve • If the same symptom recurs, contact our service center for service.
• Turn off with heating or hot water power button and restart.
Abnomal flame
• If the same symptom recurs, contact our service center for service.
detected
• Defrost using electrical heating devices like hot wire and
replace the damaged parts.
Complete frost
• When water leaks because of damage in internal parts,
detected
contact our service center for service.
Abnormal
• Turn heating off and turn it on again.
fan rotation
Abnormal trial • Check whether water supply valve is open.
run on hot water Remove and reconnect the power cord to repeat the trial run.
• Check installation, status, crushing and clogging of exhaust
Exhaust closure
system. Contact the constructor to take necessary measure.
Measures
49