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- 8 Nov 2018
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Hello,
Having moved house recently, I am now the proud owner of a Zanussi ZCG664GWC gas oven. Product number 94890505800
After a few cooking disasters involving cold food and hungry children, I tested the oven using an oven thermometer.
At first, I thought it was a thermostat issue as the oven didn't seem to ever get to the correct temperature but having left the oven to preheat for 45 minutes, it showed that it will reach the heady heights of 240C when asked for gas mark 7, at which point, the flame reduces. This suggests to me that the thermostat is functioning correctly.
I do feel that 45 minutes is a very long time to wait for an oven to preheat. Another factor is, once the door is opened to put food in, the temperature drops to 180C and it can take another 30 minutes to get back up to 200C.
I thought it seemed to fit that the igniter was failing but having checked the parts diagram on Zanussi's website, it doesn't seem to have an igniter, it has a thermocouple controlling the gas valve. Is it possible that this is failing and allowing a reduced amount of gas to pass the valve to create a big enough flame, or is a thermocouple a strictly on or off device? Is it possible to test a thermocouple?
The oven lights immediately but I'm unsure whether it is stuck on a low flame as I don't know what size the flame should be!
Does anyone have any ideas on what I can check before I call the repair man?
Having moved house recently, I am now the proud owner of a Zanussi ZCG664GWC gas oven. Product number 94890505800
After a few cooking disasters involving cold food and hungry children, I tested the oven using an oven thermometer.
At first, I thought it was a thermostat issue as the oven didn't seem to ever get to the correct temperature but having left the oven to preheat for 45 minutes, it showed that it will reach the heady heights of 240C when asked for gas mark 7, at which point, the flame reduces. This suggests to me that the thermostat is functioning correctly.
I do feel that 45 minutes is a very long time to wait for an oven to preheat. Another factor is, once the door is opened to put food in, the temperature drops to 180C and it can take another 30 minutes to get back up to 200C.
I thought it seemed to fit that the igniter was failing but having checked the parts diagram on Zanussi's website, it doesn't seem to have an igniter, it has a thermocouple controlling the gas valve. Is it possible that this is failing and allowing a reduced amount of gas to pass the valve to create a big enough flame, or is a thermocouple a strictly on or off device? Is it possible to test a thermocouple?
The oven lights immediately but I'm unsure whether it is stuck on a low flame as I don't know what size the flame should be!
Does anyone have any ideas on what I can check before I call the repair man?