Convotherm OEB Series - Page 232

Service manual OEB/OES/OGB/OGS
KD / 31.03.2009 5_00d_Fehlersuchliste_h_En.doc
Page 16 / 21
OEB OES OGB OGS
Defect Possible cause or remedy
5.4 Condenser
   
5.4.1 Constant water supply in
the condenser
• Solenoid valve Y1 is not closing
a) Solenoid valve contaminated
b) Solenoid valve defective
c) Water pressure too low
• Short circuit of the B3 sensor wiring
• Appliance connected to hot water  Cold
water
• Solenoid valve Y1 reversed with Y2 or Y3
   
5.4.2 No supply of cooling water
in the condenser or supply too
low
• Check polarity of the B3 sensor connection
(green/white)
• Water supply pipe closed
• Condenser quenching nozzle contaminated
• Dirt filter in hose fitting contaminated
• Inlet filter in the solenoid valve
contaminated  Clean
• Solenoid valve Y1 is not opening
a) Solenoid coil defective
b) Solenoid valve defective
• Short circuit of the B3 - sensor wiring or
cooling sensor B3 defective
5.5 Motor
   
5.5.1 Motor does not run after
start of programme
• Appliance is set to dummy version
• Door contact switch defective
Twist lever catch (catch screw) too far from
the Reed contact
• Test door contact switch in service
programme r23; if necessary, make
appliance level (above all with floor models)
• Motor contactor K5/K50/K55/K56/K57 does
not pull in
a) Contact problem on the terminals
b) Motor contactor defective
• Fan malfunction (excessive temperature) E
03
• Test motor contactors (K5, K50, K55, K56,
K57) for sticking contacts