6.3
Maintenance Schedule
CUSTOMER
QUALIFIED PERSONNEL
DANGER! ELECTRIC SHOCK
. Risk of fatal injury. Only electrically
qualified personnel should attempt these maintenance procedures.
Maintenance
Procedure
Method
Frequency
Daily
Weekly
Monthly
Bi-
Annually
Annually
Safety
Safety Switch Function
With the gas supply on but the oven
at ambient, open the door and make
sure the gas ceases to flow
Safety Switch Function
Electrical measurement
Over-Temperature Safety Circuit
(if fitted)
Set an over-temperature setpoint
lower than the displayed tem-
perature and check for an over-tem-
perature alarm as detailed in this
manual
Over-Temperature Safety Circuit
(if fitted)
Electrical measurement
Door Seal
Visual inspection - check for splits or
fraying
Door Seal
Replacement
Electrical Safety (external)
Visual check of external cables and
plugs
Electrical Safety (internal)
Physically check all connections and
cleaning of the power plate area
Non-Return Valve
Check that the small ball in the non-
return valve is free to move
Function
Temperature Calibration
Tested using certified equipment, fre-
quency dependent on the standard
required
Operational Check
Check that all functions are working
normally
Operational Check
Thorough inspection and report incor-
porating a test of all functions
Performance
Cooling Fans (if fitted)
Check whether the cooling fans are
working
19