Service manual

Combi-Oven Maintenance
19
Category Perform Activity
Under the
oven
Annually
• Solenoid valves
o check hoses
o clean solenoid valves
o check that solenoid valves close
• Check/test drain pump
• Drain
o check for leaks in drain system
o check that drain system is not blocked
o Check condensation nozzle in drain tube
• Drip-tray system
o check/adjust drip-tray springs
o check drain basin and hose from drip tray
o check correct fall of hose
o check passage in hose (clean out hose, if necessary)
In motor
compartment
Annually
• Heating elements for oven compartment
o check insulation for leaks
o check for electric leakage ("megges")
o check load distribution on phases
• Steam generator
o check for leaks
o check for electric leakage in heating elements ("megges")
o check load distribution (idling) on phases
o check rubber gaskets at heating elements
o check/tighten heating elements
o check/adjust level sensors
o descale steam generator
• Check/tighten copper tube connections
• Check/tighten all electric connections
• Contactors
o check that there are no bad connections
o check that all components are firmly fixed
• Check/test motor for damper in air exhaust
• Fan motor
o check that the motor is firmly fixed
o check direction of rotation
o check gasket at motor shaft