Convotherm OGS 20.20 - Page 230

Service manual OEB/OES/OGB/OGS
KD / 31.03.2009 5_00d_Fehlersuchliste_h_En.doc
Page 14 / 21
OEB OES OGB OGS
Defect Possible cause or remedy
   
5.2.8 Water drips out of the front
area of the appliance floor in
table-top models
• Seak between inner and outer housing is
worn or missing  Check seal groove for
door seal
• Channel seal between appliance drip tray
and housing is missing
• Door seal worn
   
5.2.9 Too dry or too wet in
programmes with steam
• Pressure balance valve in oven ceiling open
 Check and adjust, if necessary, clean
• Pressure balance valve in oven ceiling
blocked  Clean with hand shower
• Solenoid valves are not closing properly
• Bypass sensor greased up / bypass
opening blocked (not with OES 6.06)
• Demoisturisation activated
5.3 Steam generator
 
5.3.1 Steam generator is still not
ready to operate after 5 mins
• Check polarity of the B4 sensor connection
(green/white)
• Overfilling of the steam generator
• Heater contactors do not pull in
a) Contact problem on terminals
b) Heater contactor defective
• Immersion heater / heat exchanger in the
steam generator calcified
• Immersion heater defective
 
5.3.2 Uncontrolled steam supply
in stop mode, and moisture in
the convection programme
• Check polarity of the B4 sensor connection
(green/white)
• Steam generator or pre-heating sensor
calcified see 4.4 Decalcifying the
CONVOTHERM
• Pre-heating temperature set too high in c01
• Electronics’ temperature detection defective
( Replace control module CM)
 
5.3.3 Steam generator is no long
switching off
• Check polarity of the B5 sensor connection
(green/white)
• Bypass pipe has come loose
• Bypass pipe T-piece and B5 blocked or
greased up
• Constant water supply in the condenser
• Electronics service programme c 05 on
permanent steaming
• Short circuit of the B5 sensor wiring