Troubleshooting Guide - Panasonic SR-TMG10 Service Manual

SR-TMG10 / TMG18

3. TROUBLESHOOTING GUIDE

When receiving a rice boiler to be repaired, be sure to check that the main body is completely provide with the inner pan
and the inner lid, ask the condition (phenmenon) of the trouble in detail. Before troubleshooting single parts, be sure to
disconnect the power supply plug from the receptacle.
Table 1
Condition
Rice boiling section
Plane rice / Brown rice
• Rice is not boiling.
(The indicating lamp
does not come on)
• Rice is not boiling.
(The indicating lamp
is lit)
• Earlier cut off.
• Poor boiling up.
• Too hard
• Too soft
• Insufficient boiling
Troubleshooting
Is the power cord conductive?
Yes
Is the thermal fuse conductive?
Yes
Is the therminal conductive?
Yes
Are the parts on the P.C.B. mistake?
Is the cast heater conductive?
Yes
Are the parts on the P.C.B. mistake?
Is the pan bottom properly contacted with
the cast heater?
(Check with the bubbling test).
Yes
Does the center thermostat operate
properly?
(Check with the operation test).
Yes
Are the parts on the P.C.B. mistake?
No
Improper operation
• Rice is excessive or insufficient.
• Water is excessive or insufficient.
• The switch is turned off once during
boiling.
• Immediately after the switch is turned
off, open the cap.
• Rice has not been scooped and mixed
well.
- 5 -
Remedy
No
• Replace the cord.
No
• Isolate the cause which melt
the thermal fuse, correct
the cause and
No
• Make sure insert therminal is
fasten.
Yes
• Replace the P.C.B. complete.
No
• Replace the cast heater.
Yes
• Replace the P.C.B. complete.
No
• Replace the inner pan or the
cast heater.
No
• Replace the center thermostat.
Yes
• Seeing at Table 2
Yes
• Explain the proper operation.