Convotherm OEB Series User Manual

Service manual OEB/OES/OGB/OGS
5_00e Troubleshooting list_L 17/27 2013-01-30
OEB OES OGB OGS
Defect Possible cause or remedy

Dirt filter in hose fitting contaminated
 Inlet filter in the solenoid valve contaminated
 Solenoid valve Y3 is not opening
a) Solenoid valve defective
b) Contact problem on the plug
 Contact problem on level sensor (short circuit
to earth)
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5.3.5 No steam supply in the
programmes with steam and
hot air
 Short circuit of the B5 sensor wiring
 Heater contactors do not pull in
 Immersion heaters in the SG defective
 No water in the SG
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5.3.6 Water or foam sprays
out of the steam outlet
aperture in the inner chamber
 Steam generator overfilled
 Cleaning agent or decalcifier residues are in
the SG  flush out thoroughly several times
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5.3.7 Constant water supply in
the condenser
 Solenoid valve Y3 is not closing
a) Solenoid valve contaminated (hangs)
b) Solenoid valve defective
c) Water pressure too low (min. 2 bar)
 Water level sensor is not switching
 Contact problem on water level sensor or on
clamp connection
 Electronics - fixing pin (earth connection)
loose
 Conductance of the water too low
 Insulating layer on water level sensor
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5.3.8 Water sprays out of air
outlet pipe (roof of appliance)
 Bypass pipe dirty, blocked or has a water
pocket (sags)
 B5 sensor (steam measuring sensor) greased
up
 Exhaust pipe blocked
 Steam generator blocked in the area of the
water supply pipe
5.4 Condenser
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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
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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

Convotherm OEB Series Specifications

General

Brand	Convotherm
Model	OEB Series
Category	Commercial Food Equipment
Language	English