Maintenance And Care; Troubleshoot - Rinnai RB-7022HE-CB Operation & Installation Manual

WARNING:
Disconnect the power supply cord before carrying out
any cleaning or maintenance activities.
Cleaning the appliance
The appliance should be cleaned regularly, preferably
after each use.
• Do not use abrasive or corrosive cleaning agents as
these may scratch the surface.
• Avoid using hard, abrasive brushes or sponges.
• Never use steam cleaners or presure cleaners on
the appliance.
• Clean the hob with a damp soft cloth using and
mild detergent or suitable ceramic and stainless
steeel hob cleaner. Do not apply cleaner when the
hob is still hot as this could result in marking on the
surface. Wipe dry with a soft dry cloth. Ensure that
all cleaner residues are removed as residues can
burn onto the appliance next time it is used and
The hob does not work
• Check that the main switch is turned on and any plug or
power cable is properly inserted in the electrical outlet.
The hob gives off a smell when used for the first time
• This is a normal occurrence. Please read 'Using for the First
time' in this manual.
The cooking zones not switching on or are not functioning
• Check if more than 10 seconds have passed since the
appliance was switched on.
• Check if the child lock function is activated.
• Check if several sensor keys were touched simultaneously.
Touch only one sensor key at a time.
FAILURE CODE AND INSPECTION ( FOR INDUCTION ZONE ONLY)
Failure Code
E4/E5
Temperature sensor of the IGBT
E7/E8
E2/E3
E6/E9 Induction hob overheat internally.
WARNING: Do not disassemble the unit by yourself in case of any dangers.
If the problem persists despite observing the above checks, please contact your local Rinnai Customer Care Center
for assistance.
Please quote the model number of your appliance as shown on the rating plate attached to your equipment.
For service calls under warranty, please note that it is necessary to provide your proof of purchase and valid
warranty card.

MAINTENANCE AND CARE

TROUBLESHOOT

Possible Causes
Temperature sensor failure
failure
Abnormal supply voltage
could cause possible damage to the surface.
• To remove more stubborn dirt, or if any sugary
deposits are melted on the hob during cooking,
remove the spills as soon as possible with a special
scraper while the surface is still hot. Allow the
appliance to cool down, and then clean the hob as
described above.
• *Scraper for glass ceramic can be purchased from
specialized shops.
Useful Tips:
• Allow the appliance to cool down to room
temperature before cleaning. Use a soft cloth to
dry surfaces that have been cleaned with water to
avoid water marks.
• To avoid food or liquid residues forming deposits
on the appliance surface, remove stains or spills as
soon as possible without waiting for the appliance
to cool.
The hob gives off a "buzzing sound" or "humming noise"
• Some cookware may produce a "buzzing sound" during
induction cooking on higher power settings. This is a normal
occurrence. The noise is a result of vibrations caused
by induced currents. The sound will decrease or cease
altogether when the power setting is reduced.
The appliance produces a "whirring sound"
• The hob has a ventilation cooling fan to help extend the
life of the appliance. When the hob is used extensively, the
fan comes on and creates a "whirring sound". The fan may
continue to run after the appliance has been switched off.
This is a normal occurrence.
Pans cannot be detected
• Please read "Choosing the Suitable Cookware" in this
manual
What to do
Please contact the after sales service.
Please contact the after sales service.
Please check whether power supply is normal. Restart
hob after power supply normal.
Please restart if the induction hob cools down.
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