Troubleshooting Without Water Controllers; Service - Rinnai REU-AM2024WD-SA Operation And Installation Manual

1.4.2 TROUBLESHOOTING WITHOUT WATER CONTROLLERS

If you have not installed temperature controllers and experience the following symptoms, please carry out the
suggestions below or check status monitor and remdy of 1.4.1. If symptoms continue, please contact Rinnai for
advice.
Description
The unit does not attempt to start at all.
The unit starts then shuts down immediately.
The unit starts then the water goes cold.
Faults caused by insufficient gas supply, insufficient water supply, gas quality, water quality,
installationerrorsoroperationerrorsarenotcoveredbythewarranty.
NOTE

1.4.3 SERVICE

Aregularmaintenanceshouldbemadetopreservetheapplianceintegrityandtokeepsafety,
efficiencyandreliabilityunchanged.
NOTE
Water controllers and water heaters do not contain user serviceable parts and must only be
servicedandrepairedbyanauthorisedperson.
Rinnaihasaserviceandsparepartsnetworkwithpersonnelwhoarefullytrainedandequipped
togivethebestserviceonyourRinnaiappliance.Ifyourappliancerequiresservice,pleasecall
theauthorisedRinnaiservicecompany.
Whenmakingaserviceenquiry,havingboththemodelandserialnumbersavailable,willhelp
ourstaffquicklyidentifyyourapplianceandbetterattendtoyourneeds.
Always keep the appliance clean.
Unplug the appliance and turn the main gas valve off before to proceed
with any cleaning or maintenance.
Clean the chassis and the remote controller using soft cloth only.
After maintenance (or cleaning), check to ensure that all the components
of the appliance are intact and connected in the correct way. Exhaust gas
leakage could be harmful for health or result in death.
The water heater has a filter on the cold water inlet connection. This filter
will need to be cleaned occasionally. How often will be determined by the
local water condition; contact Rinnai or ask your installer for information.
Isolate the cold water inlet and hot water outlet with the valves near the
heater. Release the pressure in the heater by unscrewing the drain valve.
Then remove the filter, clean it and replace it.
If the inlet filter is clogged up, it could decrease the performance of the
appliance and shorten its service life. The user should clean the filter
regularly to preserve a proper operation and to prevent the appliance
failure.
18
Remedy
Check the power is on at the unit.
Check the isolation valves at the unit are open.
Check the power is still on.
Check the gas isolation valves at the unit and the gas
meter are fully open.
Open your hot water tap fully.
Check the power is still on.
Open your hot water tap further.