AGA RANGEMASTER eR7, Field Service Manual

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Page 17 of 34
*Important Note*
Please refer to the notes below to assist you with your diagnosis of any error codes recorded.
007 : Error 7 will occur if the user panel PCB is unable to process thermocouple measurements
requiring the user panel to be replaced.
010 - 014 : Full power time out - A full power time out is a safety feature implemented to show the
cooking zone is taking too long to reach it’s expected temperature.
Full power time out errors may be caused by the way the cooker is being operated. The following
can be causes, however this list is not exhaustive:
•
Heat up time not allowed before use
• Doors left open
• Oversized pans
• Overly full pans
• Cold plain shelf left in the simmer oven while heating up
020 – 024 : T/Couple differential - Use engineers handset / laptop software to monitor temperature
of thermocouples.
060 – 100 : T/Couple open circuit - Check the thermocouple with a multimeter. Please remember
duplex thermocouples are used, so there are 4 wires on the plug, each thermocouple has a one
green and one white conductor , so test across the green and white conductor with the multimeter
probes. If open circuit exchange thermocouple. Check thermocouples are plugged fully in to user
control panel.
**Note**
Instances of Thermocouples returned for testing have shown they test ok at
room temp but drift apart or go open circuit at higher temperatures. Please
ensure you rule this out.
110 - 116 : Relay short circuit - Reset PCB and Log. If recurring then PCB may be required.
120 - 124 : Cooking Zone Overheat Error - Check thermocouples are not cross connected on back of
user control panel, visual Identification of where the thermocouples plug into are behind user
control panel.
130 - 136 : Triac Fault - Check connections of element circuit showing a triac error at element
terminals, check resistance of element (18 – 20 Ω) if the element is open Circuit, replace the
element. If the element resistance is correct and software version is correct then replace main PCB.
User Panel Overheat - Excessive temperatures can be caused by baking oven door left open or not
fitting correctly , door seal defective ( leaking heat ).Plugs missing in thermocouple conduits. Towels
etc. being draped over the control panel door.
Configuration Key Fault - No configuration key fitted to board or wrong key in relation to the phase
of electrical supply the cooker is connected to. In addition, when controls are in standby it is
possible to see a display of the configuration key compared to the connected phase (s) supply. See
TB 30.01.14.
150 - 156 : Relay Open Circuit - Reset and Log. If recurring then PCB may be required.